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Pallari CT, Achilleos S, Quattrocchi A, Gabel J, Critselis E, Athanasiadou M, Rahmanian Haghighi MR, Papatheodorou S, Liu T, Artemiou A, Rodriguez-Llanes JM, Bennett CM, Zimmermann C, Schernhammer E, Bustos Sierra N, Ekelson R, Lobato J, Macedo L, Mortensen LH, Critchley J, Goldsmith L, Denissov G, Le Meur N, Kandelaki L, Athanasakis K, Binyaminy B, Maor T, Stracci F, Ambrosio G, Davletov K, Glushkova N, Martial C, Chan Sun M, Hagen TP, Chong M, Barron M, Łyszczarz B, Erzen I, Arcos Gonzalez P, Burström B, Pidmurniak N, Verstiuk O, Huang Q, Polemitis A, Charalambous A, Demetriou CA. Magnitude and determinants of excess total, age-specific and sex-specific all-cause mortality in 24 countries worldwide during 2020 and 2021: results on the impact of the COVID-19 pandemic from the C-MOR project. BMJ Glob Health 2024; 9:e013018. [PMID: 38637119 PMCID: PMC11029481 DOI: 10.1136/bmjgh-2023-013018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 01/06/2024] [Indexed: 04/20/2024] Open
Abstract
INTRODUCTION To examine the impact of the COVID-19 pandemic on mortality, we estimated excess all-cause mortality in 24 countries for 2020 and 2021, overall and stratified by sex and age. METHODS Total, age-specific and sex-specific weekly all-cause mortality was collected for 2015-2021 and excess mortality for 2020 and 2021 was calculated by comparing weekly 2020 and 2021 age-standardised mortality rates against expected mortality, estimated based on historical data (2015-2019), accounting for seasonality, and long-term and short-term trends. Age-specific weekly excess mortality was similarly calculated using crude mortality rates. The association of country and pandemic-related variables with excess mortality was investigated using simple and multilevel regression models. RESULTS Excess cumulative mortality for both 2020 and 2021 was found in Austria, Brazil, Belgium, Cyprus, England and Wales, Estonia, France, Georgia, Greece, Israel, Italy, Kazakhstan, Mauritius, Northern Ireland, Norway, Peru, Poland, Slovenia, Spain, Sweden, Ukraine, and the USA. Australia and Denmark experienced excess mortality only in 2021. Mauritius demonstrated a statistically significant decrease in all-cause mortality during both years. Weekly incidence of COVID-19 was significantly positively associated with excess mortality for both years, but the positive association was attenuated in 2021 as percentage of the population fully vaccinated increased. Stringency index of control measures was positively and negatively associated with excess mortality in 2020 and 2021, respectively. CONCLUSION This study provides evidence of substantial excess mortality in most countries investigated during the first 2 years of the pandemic and suggests that COVID-19 incidence, stringency of control measures and vaccination rates interacted in determining the magnitude of excess mortality.
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Affiliation(s)
- Chryso Th Pallari
- Department of Primary Care and Population Health, University of Nicosia Medical School, Nicosia, Cyprus
| | - Souzana Achilleos
- Department of Primary Care and Population Health, University of Nicosia Medical School, Nicosia, Cyprus
| | - Annalisa Quattrocchi
- Department of Primary Care and Population Health, University of Nicosia Medical School, Nicosia, Cyprus
| | - John Gabel
- Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Elena Critselis
- Department of Primary Care and Population Health, University of Nicosia Medical School, Nicosia, Cyprus
| | - Maria Athanasiadou
- Health Monitoring Unit, Government of the Republic of Cyprus Ministry of Health, Nicosia, Cyprus
| | | | - Stefania Papatheodorou
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, New Jersey, USA
- Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, Massachusetts, USA
| | - Tianyu Liu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Andreas Artemiou
- School of Information Technologies, University of Limassol, Limassol, Cyprus
| | | | - Catherine M Bennett
- Institute for Health Transformation, Deakin University, Burwood, Victoria, Australia
| | - Claudia Zimmermann
- Department of Epidemiology, Medical University of Vienna Center for Public Health, Vienna, Austria
| | - Eva Schernhammer
- Department of Epidemiology, Medical University of Vienna Center for Public Health, Vienna, Austria
| | | | - Reindert Ekelson
- Department of Epidemiology and Public Health, Sciensano, Brussels, Belgium
| | - Jackeline Lobato
- Department of Epidemiology and Biostatistics, Institute of Collective Health (ISC), Federal Fluminense University, Niteroi, Brazil
| | - Laylla Macedo
- Institute of Studies in Collective Health (IESC), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Julia Critchley
- Population Health Research Institute, St George's University of London, London, UK
| | - Lucy Goldsmith
- Division of Health Services Research and Management, School of Health and Psychological Sciences, University of London, City, London, UK
| | - Gleb Denissov
- Department of Registries, National Institute for Health Development, Tallinn, Estonia
| | - Nolwenn Le Meur
- UMR CNRS 6051 - INSERM U1309, Ecole des Hautes Etudes en Santé Publique, Rennes, France
| | - Levan Kandelaki
- Department of Medical Statistics, National Center for Disease Control and Public Health, Tbilisi, Georgia
| | - Kostas Athanasakis
- Laboratory for Health Technology Assessment, University of West Attica, Athens, Greece
| | - Binyamin Binyaminy
- Israeli Center of Disease Control, State of Israel Ministry of Health, Ramat Gan, Israel
| | - Tamar Maor
- Israeli Center of Disease Control, State of Israel Ministry of Health, Ramat Gan, Israel
| | - Fabrizio Stracci
- Department of Medicine, Public Health Section, University of Perugia, School of Medicine, Perugia, Italy
| | - Giuseppe Ambrosio
- Department of Cardiology, University of Perugia School of Medicine, Perugia, Italy
| | - Kairat Davletov
- Rector Administration, Asfendiyarov Kazakh National Medical University, Almaty, Kazakhstan
| | - Nataliya Glushkova
- Department of Epidemiology, Evidence-Based Medicine and Biostatistics, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Cyndy Martial
- Department of Medicine, University of Mauritius Faculty of Science, Reduit, Mauritius
| | - Marie Chan Sun
- Department of Medicine, University of Mauritius Faculty of Science, Reduit, Mauritius
| | - Terje P Hagen
- Department of Health Management and Health Economics, University of Oslo, Oslo, Norway
| | - Mario Chong
- Departamento de Ingeniería, Universidad del Pacifico, Lima, Peru
| | - Manuel Barron
- Departamento de Economia, Universidad del Pacifico, Lima, Peru
| | - Błażej Łyszczarz
- Department of Health Economics, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
| | - Ivan Erzen
- Public Health School, National Institute of Public Health of the Republic of Slovenia, Ljubljana, Slovenia
| | - Pedro Arcos Gonzalez
- Unit for Research in Emergency and Disaster, Department of Medicine, University of Oviedo, Oviedo, Spain
| | - Bo Burström
- Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden
| | - Nataliia Pidmurniak
- Department of Internal Medicine, Bogomolets National Medical University, Kyiv, Ukraine
| | - Olesia Verstiuk
- Department of Medical Sciences, University of Nicosia Medical School, Nicosia, Cyprus
| | - Qian Huang
- Center for Rural Health Research, College of Public Health, East Tennessee State University, Johnson City, TN, USA
| | | | | | - Christiana A Demetriou
- Department of Primary Care and Population Health, University of Nicosia Medical School, Nicosia, Cyprus
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Künzel RG, Elgazzar M, Bain PA, Kirschbaum C, Papatheodorou S, Gelaye B. The association between maternal prenatal hair cortisol concentration and preterm birth: A systematic review and meta-analysis. Psychoneuroendocrinology 2024; 165:107041. [PMID: 38581747 DOI: 10.1016/j.psyneuen.2024.107041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/30/2024] [Accepted: 03/31/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND The risk of preterm birth (PTB) increases when experiencing stress during pregnancy. Chronic stress has been associated with a dysregulation of the hypothalamic-pituitary-adrenal axis, for which hair cortisol concentration (HCC) is a promising biomarker. However, previous studies on the association between HCC and PTB yielded inconsistent results. This systematic review and meta-analysis synthesized previous studies on the association between maternal HCC before and during pregnancy and spontaneous PTB. METHODS Data was extracted from N = 11 studies with k = 19 effect sizes retrieved from PubMed, Embase, Web of Science, CINAHL and citation searching by hand in June 2023 and updated in October 2023. Standardized mean differences were calculated, and a random-effects three-level meta-analysis was conducted. Effect heterogeneity was assessed using Q and I2. RESULTS HCC during pregnancy was higher among PTB than term groups, but effects were not statistically significant (z = 0.11, 95% CI: - 0.28, 0.51, p = .54) and total heterogeneity was high (Q16 = 60.01, p < .001, I2Total = 92.30%). After leaving out two possible outlier studies in sensitivity analyses, HCC was lower among preterm compared to term delivering groups, although not statistically significant (z = - 0.06, 95% CI: - 0.20, 0.08, p = .39) but with a substantially reduced total heterogeneity (Q12 = 16.45, p = .17, I2Total = 42.15%). No moderators affected the estimates significantly, but an effect of trimester and gestational age at delivery is likely. CONCLUSION There is currently no evidence of prenatal HCC differences between PTB and term groups as effects were small, imprecise, and not significant. Low statistical power and methodological weaknesses of the small-scale studies challenge possible biological inferences from the small effects, but further research on HCC during pregnancy is highly encouraged.
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Affiliation(s)
- Richard G Künzel
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA; Katholische Universität Eichstätt-Ingolstadt, Ostenstr. 28a, Eichstätt 85072, Germany.
| | | | - Paul A Bain
- Countway Library, Harvard Medical School, 10 Shattuck St, Boston, MA 02115, USA
| | - Clemens Kirschbaum
- Technische Universität Dresden, Zellescher Weg 19, Dresden 01062, Germany
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA
| | - Bizu Gelaye
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA; The Chester M. Pierce M.D. Division of Global Psychiatry, Department of Psychiatry, Massachusetts General Hospital, 55 Fruit St, Boston, MA 02114, USA
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An KR, Seijas V, Xu MS, Grüßer L, Humar S, Moreno AA, Turk M, Kasanagottu K, Alzghari T, Dimagli A, Ko MA, Villena-Vargas J, Papatheodorou S, Gaudino MFL. Does prehabilitation before esophagectomy improve postoperative outcomes? A systematic review and meta-analysis. Dis Esophagus 2024; 37:doad066. [PMID: 38018252 DOI: 10.1093/dote/doad066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 11/30/2023]
Abstract
Esophagectomy for esophageal cancer is associated with high morbidity. It remains unclear whether prehabilitation, a strategy aimed at optimizing patients' physical and mental functioning prior to surgery, improves postoperative outcomes. A systematic review and meta-analysis was conducted to evaluate the effect of prehabilitation on post-operative outcomes after esophagectomy. Data sources included Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE, CINAHL, and PEDro, with information from 1 January 2000 to 5 August 2023. The analysis included randomized controlled trials and observational studies that compared prehabilitation interventions to standard care prior to esophagectomy. A random effects model was used to generate a pooled estimate for pairwise meta-analysis, meta-analysis of proportions, and meta-analysis of means. A total of 1803 patients were included with 584 in randomized controlled trials (RCTs) and 1219 in observational studies. In the randomized evidence, there were no significant differences between prehabilitation and control in the odds of postoperative pneumonia (15.0 vs. 18.9%, odds ratio (OR) 1.06 [95% confidence interval (CI): 0.66;1.72]) or pulmonary complications (14 vs. 25.6%, OR 0.68 [95% CI: 0.32;1.45]). In the observational data, there was a reduction in both postoperative pneumonia (22.5 vs. 32.9%, OR 0.48 [95% CI: 0.28;0.83]) and pulmonary complications (26.1 vs. 52.3%, OR 0.35 [95% CI: 0.17;0.75]) with prehabilitation. Hospital and intensive care unit length of stay (days), operative mortality, and severe complications (Clavien-Dindo ≥ 3) did not differ between groups in both the randomized data and observational data. Prehabilitation demonstrated reductions in postoperative pneumonia and pulmonary complications in observational studies, but not RCTs. The overall certainty of these findings is limited by the low quality of the available evidence.
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Affiliation(s)
- Kevin R An
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
- Division of Cardiac Surgery, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Vanessa Seijas
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Division of Rehabilitation, Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
- Ageing, Functioning Epidemiology, and Implementation, Swiss Paraplegic Research, Nottwil, Switzerland
- Department of Physical and Rehabilitation Medicine, Rehabilitation in Health Research Group, University of Antioquia, Medellin, Colombia
| | - Michael S Xu
- Division of General Surgery, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Linda Grüßer
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Anesthesiology, University Hospital RWTH Aachen, Aachen, Germany
| | - Sapna Humar
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
| | - Amabelle A Moreno
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Division of Pediatric Surgery, Department of Surgery, University of the Philippines-Philippine General Hospital, Manila, The Philippines
| | - Marvee Turk
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Koushik Kasanagottu
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Division of General Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Harvard University, Boston, MA, USA
| | - Talal Alzghari
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Arnaldo Dimagli
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Michael A Ko
- Division of Thoracic Surgery, Department of Surgery, St. Joseph's Health Centre, University of Toronto, Toronto, ON, Canada
| | | | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Mario F L Gaudino
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, USA
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Wang VA, Leung M, Liu M, Modest AM, Hacker MR, Gupta M, Zilli Vieira CL, Weisskopf MG, Schwartz J, Coull BA, Papatheodorou S, Koutrakis P. Association between gestational exposure to solar activity and pregnancy loss using live births from a Massachusetts-based medical center. Environ Res 2024; 242:117742. [PMID: 38007077 PMCID: PMC10843533 DOI: 10.1016/j.envres.2023.117742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/16/2023] [Accepted: 11/18/2023] [Indexed: 11/27/2023]
Abstract
BACKGROUND Solar activity has been linked to biological mechanisms important to pregnancy, including folate and melatonin levels and inflammatory markers. Thus, we aimed to investigate the association between gestational solar activity and pregnancy loss. METHODS Our study included 71,963 singleton births conceived in 2002-2016 and delivered at an academic medical center in Eastern Massachusetts. We studied several solar activity metrics, including sunspot number, Kp index, and ultraviolet radiation, with data from the NASA Goddard Space Flight Center and European Centre for Medium-Range Weather Forecasts. We used a novel time series analytic approach to investigate associations between each metric from conception through 24 weeks of gestation and the number of live birth-identified conceptions (LBICs) -the total number of conceptions in each week that result in a live birth. This approach fits distributed lag models to data on LBICs, adjusted for time trends, and allows us to infer associations between pregnancy exposure and pregnancy loss. RESULTS Overall, the association between solar activity during pregnancy and pregnancy loss varied by exposure metric. For sunspot number, we found that an interquartile range increase in sunspot number (78·7 sunspots) in all of the first 24 weeks of pregnancy was associated with 14·0 (95% CI: 6·5, 21·3) more pregnancy losses out of the average 92 LBICs in a week, and exposure in weeks ten through thirteen was identified as a critical window. Although not statistically significant, higher exposure to Kp index and to UV radiation across all 24 weeks of pregnancy was associated with more and less pregnancy losses, respectively. CONCLUSION While exposure to certain metrics of solar activity (i.e., sunspot number) throughout the first 24 weeks of pregnancy may be associated with pregnancy losses, exposure to other metrics were not. Solar activity is a complex phenomenon, and more studies are needed to clarify underlying pathways.
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Affiliation(s)
- Veronica A Wang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Michael Leung
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Man Liu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Anna M Modest
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Michele R Hacker
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Megha Gupta
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Carolina L Zilli Vieira
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Marc G Weisskopf
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Joel Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Brent A Coull
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Shupler M, Huybrechts K, Leung M, Wei Y, Schwartz J, Li L, Koutrakis P, Hernández-Díaz S, Papatheodorou S. Short-Term Increases in NO 2 and O 3 Concentrations during Pregnancy and Stillbirth Risk in the U.S.: A Time-Stratified Case-Crossover Study. Environ Sci Technol 2024; 58:1097-1108. [PMID: 38175714 DOI: 10.1021/acs.est.3c05580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Associations between gaseous pollutant exposure and stillbirth have focused on exposures averaged over trimesters or gestation. We investigated the association between short-term increases in nitrogen dioxide (NO2) and ozone (O3) concentrations and stillbirth risk among a national sample of 116 788 Medicaid enrollees from 2000 to 2014. A time-stratified case-crossover design was used to estimate distributed (lag 0-lag 6) and cumulative lag effects, which were adjusted for PM2.5 concentration and temperature. Effect modification by race/ethnicity and proximity to hydraulic fracturing (fracking) wells was assessed. Short-term increases in the NO2 and O3 concentrations were not associated with stillbirth in the overall sample. Among American Indian individuals (n = 1694), a 10 ppb increase in NO2 concentrations was associated with increased stillbirth odds at lag 0 (5.66%, 95%CI: [0.57%, 11.01%], p = 0.03) and lag 1 (4.08%, 95%CI: [0.22%, 8.09%], p = 0.04) but not lag 0-6 (7.12%, 95%CI: [-9.83%, 27.27%], p = 0.43). Among participants living in zip codes within 15 km of active fracking wells (n = 9486), a 10 ppb increase in NO2 concentration was associated with increased stillbirth odds in single-day lags (2.42%, 95%CI: [0.37%, 4.52%], p = 0.02 for lag 0 and 1.83%, 95%CI: [0.25%, 3.43%], p = 0.03 for lag 1) but not the cumulative lag (lag 0-6) (4.62%, 95%CI: [-2.75%, 12.55%], p = 0.22). Odds ratios were close to the null in zip codes distant from fracking wells. Future studies should investigate the role of air pollutants emitted from fracking and potential racial disparities in the relationship between short-term increases in NO2 concentrations and stillbirth.
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Affiliation(s)
- Matthew Shupler
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
| | - Krista Huybrechts
- Division of Pharmacoepidemiology & Pharmacoeconomics, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Michael Leung
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
| | - Yaguang Wei
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
| | - Joel Schwartz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
| | - Longxiang Li
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
| | - Sonia Hernández-Díaz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, United States
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Mitrogiannis I, Evangelou E, Efthymiou A, Kanavos T, Birbas E, Makrydimas G, Papatheodorou S. Risk factors for preterm birth: an umbrella review of meta-analyses of observational studies. BMC Med 2023; 21:494. [PMID: 38093369 PMCID: PMC10720103 DOI: 10.1186/s12916-023-03171-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 11/09/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Preterm birth defined as delivery before 37 gestational weeks is a leading cause of neonatal and infant morbidity and mortality. The aim of this study is to summarize the evidence from meta-analyses of observational studies on risk factors associated with PTB, evaluate whether there are indications of biases in this literature, and identify which of the previously reported associations are supported by robust evidence. METHODS We searched PubMed and Scopus until February 2021, in order to identify meta-analyses examining associations between risk factors and PTB. For each meta-analysis, we estimated the summary effect size, the 95% confidence interval, the 95% prediction interval, the between-study heterogeneity, evidence of small-study effects, and evidence of excess-significance bias. Evidence was graded as robust, highly suggestive, suggestive, and weak. RESULTS Eighty-five eligible meta-analyses were identified, which included 1480 primary studies providing data on 166 associations, covering a wide range of comorbid diseases, obstetric and medical history, drugs, exposure to environmental agents, infections, and vaccines. Ninety-nine (59.3%) associations were significant at P < 0.05, while 41 (24.7%) were significant at P < 10-6. Ninety-one (54.8%) associations had large or very large heterogeneity. Evidence for small-study effects and excess significance bias was found in 37 (22.3%) and 12 (7.2%) associations, respectively. We evaluated all associations according to prespecified criteria. Seven risk factors provided robust evidence: amphetamine exposure, isolated single umbilical artery, maternal personality disorder, sleep-disordered breathing (SDB), prior induced termination of pregnancy with vacuum aspiration (I-TOP with VA), low gestational weight gain (GWG), and interpregnancy interval (IPI) following miscarriage < 6 months. CONCLUSIONS The results from the synthesis of observational studies suggest that seven risk factors for PTB are supported by robust evidence. Routine screening for sleep quality and mental health is currently lacking from prenatal visits and should be introduced. This assessment can promote the development and training of prediction models using robust risk factors that could improve risk stratification and guide cost-effective preventive strategies. TRIAL REGISTRATION PROSPERO 2021 CRD42021227296.
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Affiliation(s)
- Ioannis Mitrogiannis
- Department of Obstetrics & Gynecology, General Hospital of Arta, 47100, Arta, Greece
| | - Evangelos Evangelou
- Department of Epidemiology and Biostatistics, Imperial College London, London, SW7 2AZ, UK
- Department of Hygiene and Epidemiology, University of Ioannina Medical School, 45110, Ioannina, Greece
| | - Athina Efthymiou
- Harris Birthright Research Centre for Fetal Medicine, King's College London, London, SE5 8BB, UK
- Department of Women and Children Health, NHS Foundation Trust, Guy's and St Thomas, London, SE1 7EH, UK
| | | | | | - George Makrydimas
- Department of Obstetrics & Gynecology, University Hospital of Ioannina, 45110, Ioannina, Greece
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.
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Liu K, Kouis P, Nikolopoulos G, Kyprianou T, Nikolaidis K, Scoutellas V, Filippos T, Koutrakis P, Yiallouros P, Papatheodorou S. Ambient climatic factors and term birthweight: A study of critical windows of exposure in the Republic of Cyprus. Environ Res 2023; 237:116885. [PMID: 37607623 PMCID: PMC10592069 DOI: 10.1016/j.envres.2023.116885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/18/2023] [Accepted: 08/12/2023] [Indexed: 08/24/2023]
Abstract
BACKGROUND Reduced birthweight is associated with adverse perinatal and long-term outcomes. A few studies examined the association between climatic factors and birthweight with inconsistent results probably due to differences in exposure assessment, statistical models, climatic parameters, and study populations. METHODS We obtained data from the Republic of Cyprus birth registry from 2007 to 2020, and matched climatic exposures (i.e., temperature, relative humidity, temperature variability, humidity variability) by the hospital district at birth. We used distributed lag models to examine the association between term birthweight, temperature, humidity, and their variability to identify critical windows. Our models were adjusted for coarse particulate matter level (≤10 μm [PM10), and individual-level covariates. Subgroup analysis was conducted to examine effect modification by maternal age and education. RESULTS We identified two critical windows of exposure to ambient temperature at early and late pregnancy. The cumulative change of birthweight per 5 °C increases in mean weekly temperature was -57.27 (2%) (95% Confidence Interval [CI]: 99.62 (3.1%), -14.92 (0.5%)) and -79.2 (2.5%) (95%CI: 117.03 (3.5%), -41.52 (1.3%)) grams during weeks 1-8 and weeks 28-37, respectively. There was no significant effect of humidity, temperature variability, or humidity variability on birthweight. Based on subgroup analysis, mothers with post-secondary education were more sensitive to temperature, but the marginal significance of differences in effect estimates may be linked with differences in sample size. CONCLUSION Our study suggests that higher ambient temperature exposure during early and late pregnancy is associated with lower birthweight in main and subgroup analysis. The findings demonstrate in a country highly impacted by climate change like Cyprus that rising temperatures may be associated with perinatal outcomes in susceptible populations during sensitive windows of exposure.
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Affiliation(s)
- Kuangyliu Liu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, USA.
| | - Panayiotis Kouis
- Respiratory Physiology Laboratory, Medical School, University of Cyprus, Cyprus.
| | | | | | - Kleanthis Nikolaidis
- Department of Meteorology, Cyprus Ministry of Agriculture, Rural Development and Environment, Cyprus
| | | | - Tymvios Filippos
- Department of Meteorology, Cyprus Ministry of Agriculture, Rural Development and Environment, Cyprus.
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, USA
| | | | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, USA.
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Papatheodorou S, Benetou V. Editorial: Reviews in reproductive epidemiology: 2022. Front Reprod Health 2023; 5:1287513. [PMID: 38023533 PMCID: PMC10660258 DOI: 10.3389/frph.2023.1287513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Affiliation(s)
| | - Vassiliki Benetou
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Greece
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Tobias DK, Papatheodorou S, Yamamoto JM, Hu FB. A Primer on Systematic Review and Meta-analysis in Diabetes Research. Diabetes Care 2023; 46:1882-1893. [PMID: 37890100 PMCID: PMC10620547 DOI: 10.2337/dci23-0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/22/2023] [Indexed: 10/29/2023]
Abstract
A systematic review is a rigorous process that involves identifying, selecting, and synthesizing available evidence pertaining to an a priori-defined research question. The resulting evidence base may be summarized qualitatively or through a quantitative analytic approach known as meta-analysis. Systematic review and meta-analysis (SRMAs) have risen in popularity across the scientific realm including diabetes research. Although well-conducted SRMAs are an indispensable tool in informing evidence-based medicine, the proliferation of SRMAs has led to many reviews of questionable quality and misleading conclusions. The objective of this article is to provide up-to-date knowledge and a comprehensive understanding of strengths and limitations of SRMAs. We first provide an overview of the SRMA process and offer ways to identify common pitfalls at key steps. We then describe best practices as well as evolving approaches to mitigate biases, improve transparency, and enhance rigor. We discuss several recent developments in SRMAs including individual-level meta-analyses, network meta-analyses, umbrella reviews, and prospective meta-analyses. Additionally, we outline several strategies that can be used to enhance quality of SRMAs and present key questions that authors, editors, and readers should consider in preparing or critically reviewing SRMAs.
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Affiliation(s)
- Deirdre K. Tobias
- Division of Preventive Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
- Nutrition Department, Harvard T.H. Chan School of Public Health, Boston, MA
| | | | - Jennifer M. Yamamoto
- Department of Internal Medicine, Faculty of Health Sciences, University of Manitoba, and Children’s Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Frank B. Hu
- Nutrition Department, Harvard T.H. Chan School of Public Health, Boston, MA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
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10
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Polychronidis G, Siddiqi H, Ali Ahmed F, Papatheodorou S, Giovannucci EL, Song M. Association of gallstone disease with risk of colorectal cancer: a systematic review and meta-analysis of observational studies. Int J Epidemiol 2023; 52:1424-1434. [PMID: 37071919 DOI: 10.1093/ije/dyad042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 04/04/2023] [Indexed: 04/20/2023] Open
Abstract
BACKGROUND Numerous studies have assessed the association of gallstones or cholecystectomy (CE) with risk of colorectal cancer (CRC). However, the findings are mixed. OBJECTIVE To systematically review and meta-analyse the association between the presence of gallstone disease (GD), or CE and the incidence of CRC. Secondary endpoints were the risk based on type of exposure, study design, tumour subsites and sex. METHODS PubMed and EMBASE were searched from September 2020 to May 2021. The protocol was registered on the Open Science Foundation Platform. We identified and classified studies according to their design into prospective cohort, population-based case-control, hospital-based case-control and necropsy studies reporting CRC incidence among individuals with diagnosed GD or after CE (or both). Among 2157 retrieved studies, 65 (3%) met the inclusion criteria. We followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guidelines. Data were extracted by two independent reviewers. We evaluated the quality of the study according to the Newcastle-Ottawa Scale and only studies with a score of 6 and above were included in the final analyses. We pooled log-transformed odds ratios/risk ratios from the available adjusted models to estimate a summary relative risk (RR) and 95% confidence interval (CI) in a random-effects model. The primary outcome was overall CRC incidence. We also conducted secondary analyses according to sex and CRC subsites (proximal colon, distal colon and rectum). The outcome was measured by RRs with 95% CIs. RESULTS The overall association of GD and/or CE with CRC was RR = 1.15 (1.08; 1.24), primarily driven by hospital-based case-control studies [RR = 1.61 (1.29; 2.01)], whereas a more modest association was found in population-based case-control and cohort studies [RR = 1.10 (1.02; 1.19)]. Most hospital-based case-control and necropsy studies reported estimates that were adjusted for age and sex only, leaving room for residual confounding; therefore we restricted to population-based case-control and cohort studies for our subsequent analyses. Similar associations were found for women [RR = 1.21 (1.05; 1.4) and men (RR = 1.24 (1.06; 1.44)]. When assessed by CRC subsites, GD and CE were primarily associated with higher risk of proximal colon cancer [RR = 1.16 (1.07; 1.26)] but not distal colon cancer [RR = 0.99 (0.96; 1.03)] or rectal cancer [RR = 0.94 (0.89; 1.00)]. CONCLUSIONS Gallstones are associated with a modestly increased risk of colon cancer, primarily in the proximal colon.
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Affiliation(s)
- Georgios Polychronidis
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Department of General Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
- Study Centre of the German Surgical Society, University of Heidelberg, Heidelberg, Germany
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Haziq Siddiqi
- Department of Internal Medicine, University of California, San Francisco, CA, USA
| | - Fasih Ali Ahmed
- Division of Surgical Oncology, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | | | - Edward L Giovannucci
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Mingyang Song
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
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Kucharczyk MJ, Bang A, Tjong MC, Papatheodorou S, Fabregas JC. Addendum: Effectiveness of radiotherapy for local control in T3N0 rectal cancer managed with total mesorectal excision: a meta-analysis. Oncotarget 2023; 14:778. [PMID: 37646785 PMCID: PMC10470911 DOI: 10.18632/oncotarget.28484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Affiliation(s)
- Michael Jonathan Kucharczyk
- Department of Radiation Oncology, Nova Scotia Cancer Centre, Halifax, NS B3H 1V7, Canada
- Department of Radiation Oncology, Dalhousie University, Halifax, NS B3H 1V7, Canada
| | - Andrew Bang
- Department of Surgery, BC Cancer – Vancouver, Vancouver, BC V5Z 4E6, Canada
| | - Michael C. Tjong
- Department of Radiation Oncology, Princess Margaret Cancer Centre, Toronto, ON M5T 1W6, Canada
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Jesus C. Fabregas
- Department of Medicine, University of Florida Health Cancer Center, Gainesville, FL 32610, USA
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Wang VA, Leung M, Modest AM, Zilli Vieira CL, Hacker MR, Schwartz J, Coull BA, Koutrakis P, Papatheodorou S. Associations of solar activity and related exposures with fetal growth. Sci Total Environ 2023; 885:163862. [PMID: 37142041 PMCID: PMC10330664 DOI: 10.1016/j.scitotenv.2023.163862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 04/14/2023] [Accepted: 04/27/2023] [Indexed: 05/06/2023]
Abstract
BACKGROUND Solar and geomagnetic activity have been shown to suppress melatonin and to degrade folate levels, important hormones for fetal development. We examined whether solar and geomagnetic activity were associated with fetal growth. METHODS We included 9573 singleton births with 26,879 routine ultrasounds at an academic medical center in Eastern Massachusetts from 2011 through 2016. Sunspot number and Kp index were obtained from the NASA Goddard Space Flight Center. Three exposure windows were considered, including the first 16 weeks of pregnancy, one month prior to fetal growth measurement, and conception until fetal growth measurement (cumulative). Ultrasound scans from which we extracted biparietal diameter, head circumference, femur length, and abdominal circumference measurements were categorized as anatomic (<24 weeks' gestation) or growth scans (≥24 weeks' gestation) based on clinical practice. Ultrasound parameters and birth weight were standardized, and linear mixed models adjusted for long-term trends were fitted. RESULTS Prenatal exposures were positively associated with larger head parameters measured <24 weeks' gestation, negatively associated with smaller fetal parameters measured ≥24 weeks' gestation, and not associated with birth weight. The strongest associations were observed for cumulative exposure in growth scans, where an interquartile range increase in sunspot number (32.87 sunspots) was associated with a -0.17 (95 % CI: -0.26, -0.08), -0.25 (-0.36, -0.15), and -0.13 (95 % CI: -0.23, -0.03) difference in mean biparietal diameter, head circumference, and femur length z-score, respectively. An interquartile range increase in cumulative Kp index (0.49) was associated with a -0.11 (95 % CI: -0.22, -0.01) and -0.11 (95 % CI: -0.20, -0.02) difference in mean head circumference and abdominal circumference z-score, respectively, in growth scans. CONCLUSIONS Solar and geomagnetic activity were associated with fetal growth. Future studies are needed to better understand the impact of these natural phenomena on clinical endpoints.
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Affiliation(s)
- Veronica A Wang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Michael Leung
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Anna M Modest
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Carolina L Zilli Vieira
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Michele R Hacker
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Joel Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Brent A Coull
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Leung M, Modest AM, Hacker MR, Wylie BJ, Wei Y, Schwartz J, Iyer HS, Hart JE, Coull BA, Laden F, Weisskopf MG, Papatheodorou S. Traffic-Related Air Pollution and Ultrasound Parameters of Fetal Growth in Eastern Massachusetts. Am J Epidemiol 2023; 192:1105-1115. [PMID: 36963378 PMCID: PMC10893850 DOI: 10.1093/aje/kwad072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/30/2022] [Accepted: 03/23/2023] [Indexed: 03/26/2023] Open
Abstract
Previous studies have examined the association between prenatal nitrogen dioxide (NO2)-a traffic emissions tracer-and fetal growth based on ultrasound measures. Yet, most have used exposure assessment methods with low temporal resolution, which limits the identification of critical exposure windows given that pregnancy is relatively short. Here, we used NO2 data from an ensemble model linked to residential addresses at birth to fit distributed lag models that estimated the association between NO2 exposure (resolved weekly) and ultrasound biometric parameters in a Massachusetts-based cohort of 9,446 singleton births from 2011-2016. Ultrasound biometric parameters examined included biparietal diameter (BPD), head circumference, femur length, and abdominal circumference. All models adjusted for sociodemographic characteristics, time trends, and temperature. We found that higher NO2 was negatively associated with all ultrasound parameters. The critical window differed depending on the parameter and when it was assessed. For example, for BPD measured after week 31, the critical exposure window appeared to be weeks 15-25; 10-parts-per-billion higher NO2 sustained from conception to the time of measurement was associated with a lower mean z score of -0.11 (95% CI: -0.17, -0.05). Our findings indicate that reducing traffic emissions is one potential avenue to improving fetal and offspring health.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Stefania Papatheodorou
- Correspondence to Dr. Stefania Papatheodorou, Department of Epidemiology, Harvard T. H. Chan School of Public Health, 677 Huntington Avenue, Kresge Building, Boston, MA, 02115 (e-mail: )
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14
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Mitrogiannis I, Evangelou E, Efthymiou A, Kanavos T, Birbas E, Makrydimas G, Papatheodorou S. Risk factors for preterm labor: An Umbrella Review of meta-analyses of observational studies. Res Sq 2023:rs.3.rs-2639005. [PMID: 36993288 PMCID: PMC10055511 DOI: 10.21203/rs.3.rs-2639005/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Preterm birth defined as delivery before 37 gestational weeks, is a leading cause of neonatal and infant morbidity and mortality. Understanding its multifactorial nature may improve prediction, prevention and the clinical management. We performed an umbrella review to summarize the evidence from meta-analyses of observational studies on risks factors associated with PTB, evaluate whether there are indications of biases in this literature and identify which of the previously reported associations are supported by robust evidence. We included 1511 primary studies providing data on 170 associations, covering a wide range of comorbid diseases, obstetric and medical history, drugs, exposure to environmental agents, infections and vaccines. Only seven risk factors provided robust evidence. The results from synthesis of observational studies suggests that sleep quality and mental health, risk factors with robust evidence should be routinely screened in clinical practice, should be tested in large randomized trial. Identification of risk factors with robust evidence will promote the development and training of prediction models that could improve public health, in a way that offers new perspectives in health professionals.
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Chen Y, Shan Y, Lin K, Wei Y, Kim H, Koenen K, Gelaye B, Papatheodorou S. Association between Child Abuse and Risk of Adult Coronary Heart Disease A Systematic Review and Meta-analysis. Am J Prev Med 2023:S0749-3797(23)00118-6. [PMID: 36878413 DOI: 10.1016/j.amepre.2023.02.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 03/07/2023]
Abstract
INTRODUCTION This meta-analysis aimed to examine the association of child abuse with adult coronary heart disease (CHD) risk and separately by abuse subtypes, including emotional abuse, sexual abuse, and physical abuse. METHODS Data were extracted from studies published up through December 2021 and based on research from PubMed, Embase, CINAHL, and PsycINFO. Studies were selected if they included adults with or without any type of child abuse and measured the risk of any type of CHD. Statistical analyses were conducted in 2022. The random effects model was used to pool the effect estimates presented by RRs with 95% CIs. Heterogeneity was assessed using Q and I2 statistics. RESULTS The pooled estimates were synthesized using 24 effect sizes from 10 studies with a sample size of 343,371 adults. Adults with child abuse were associated with higher risk of CHD compared with those without (RR=1.52, 95% CI=1.29, 1.79), and the association was similar for myocardial infarction (RR=1.50, 95 % CI=1.08, 2.10) and unspecified CHD (RR=1.58, 95% CI=1.23, 2.02). Moreover, emotional (RR=1.48, 95% CI=1.29, 1.71), sexual (RR=1.47, 95% CI=1.15, 1.88), and physical abuse (RR=1.48, 95% CI=1.22, 1.79) were associated with increased risk of CHD. DISCUSSION Child abuse was associated with an increased risk of adult CHD. Results were generally consistent across abuse subtypes and sex. The present study advocates further research on biological mechanisms linking child abuse to CHD, as well as improvement in CHD risk prediction and targeted prevention approaches.
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Affiliation(s)
- Yinxian Chen
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Yifei Shan
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Kehuan Lin
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Clinical Epidemiology Program, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, MA, USA; The Mongan Institute, Massachusetts General Hospital, Boston, MA, USA
| | - Ying Wei
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Hyelee Kim
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Karestan Koenen
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Bizu Gelaye
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA; The Chester M. Pierce, MD Division of Global Psychiatry, Massachusetts General Hospital, Boston, MA, USA
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Ando M, Kao YC, Lee YC, Tai SA, Mendez SR, Sasaki K, Tang W, Papatheodorou S. Remote cognitive behavioral therapy for older adults with anxiety symptoms: A systematic review and meta-analysis. J Telemed Telecare 2023:1357633X231151788. [PMID: 36794548 DOI: 10.1177/1357633x231151788] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
INTRODUCTION In-person cognitive behavioral therapy (CBT) can reduce self-reported anxiety in older adults. However, studies are limited for remote CBT. We assessed the effectiveness of remote CBT in mitigating self-reported anxiety in older adults. METHODS We conducted a systematic review and meta-analysis based on a literature search of PubMed, Embase, PsycInfo, and Cochrane databases up to March 31, 2021, for randomized controlled clinical trials comparing the effectiveness of remote CBT versus non-CBT controls on mitigating self-reported anxiety in older adults. We calculated within-group pre-to-post-treatment standardized mean difference using Cohen's d, obtained the difference between a remote CBT group and a non-CBT control group as our effect size for cross-study comparison, and conducted a random-effects meta-analysis. Changes in scores on self-reported anxiety symptoms (Generalized Anxiety Disorder-7 item Scale, Penn State Worry Questionnaire, or Penn State Worry Questionnaire - Abbreviated), and self-reported depressive symptoms (Patient Health Questionnaire-9 item Scale or Beck Depression Inventory) were primary and secondary outcomes, respectively. RESULTS Six eligible studies, containing 633 participants with a pooled mean age of 66.6 years, were included in the systematic review and meta-analysis. There was a significant mitigating effect of intervention on self-reported anxiety, favoring remote CBT over non-CBT controls (between-group effect size: -0.63; 95% CI: -0.99 to -0.28). We also found a significant mitigating effect of intervention on self-reported depressive symptoms (between-group effect size: -0.74; 95% CI: -1.24 to -0.25). DISCUSSION Remote CBT is more effective in reducing self-reported anxiety and depressive symptoms than non-CBT control in older adults.
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Affiliation(s)
- Mariko Ando
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Ying-Chia Kao
- Department of Occupational Therapy, 38023Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yu-Chien Lee
- Department of Family Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Boston, MA, USA
| | - Sung-An Tai
- Department of Otolaryngology-Head and Neck Surgery, 40293Taichung Veterans General Hospital, Taichung, Taiwan
| | - Samuel R Mendez
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Kosuke Sasaki
- Department of Mathematics and Statistics, 1846Boston University, Boston, MA, USA
| | - Wenze Tang
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Anteby R, Allar BG, Broekhuis JM, Patel PB, Marcaccio CL, Papageorge MV, Papatheodorou S, Mendoza AE. Thromboprophylaxis Timing After Blunt Solid Organ Injury: A Systematic Review and Meta-analysis. J Surg Res 2023; 282:270-279. [PMID: 36332306 DOI: 10.1016/j.jss.2022.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 07/29/2022] [Accepted: 10/08/2022] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Trauma patients with blunt abdominal solid organ injuries are at high risk for venous thromboembolism (VTE), but the optimal time to safely administer chemical thromboprophylaxis is controversial, especially for patients who are managed nonoperatively due to increased risk of hemorrhage. We sought to compare failure of nonoperative management (NOM) and VTE events based on timing of chemical thromboprophylaxis initiation. METHODS A systematic review was conducted in PubMed and Embase databases. Studies were included if they evaluated timing of initiation of chemical thromboprophylaxis in trauma patients who underwent NOM of blunt solid organ injuries. Outcomes included failure of NOM and incidence of VTE. A random-effects meta-analysis was performed comparing patients who received late (>48 h) versus early thromboprophylaxis initiation. RESULTS Twelve retrospective cohort studies, comprising 21,909 patients, were included. Three studies, including 6375 patients, provided data on adjusted outcomes. Pooled adjusted analysis demonstrated no difference in failure of NOM in patients receiving late versus early thromboprophylaxis (odds ratio [OR] 0.92, 95% confidence interval [CI]:0.4-2.14). When including all unadjusted studies, even those at high risk of bias, there remained no difference in failure of NOM (OR 1.16, 95% CI:0.72-1.86). In the adjusted analysis for VTE events, which had 6259 patients between two studies, patients receiving late chemical thromboprophylaxis had a higher risk of VTE compared with those who received early thromboprophylaxis (OR 1.89, 95% CI:1.15-3.12). CONCLUSIONS Based on current observational evidence, initiation of prophylaxis before 48 h is associated with lower VTE rates without higher risk of failure of NOM.
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Affiliation(s)
- Roi Anteby
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of General Surgery, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Benjamin G Allar
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.
| | - Jordan M Broekhuis
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Priya B Patel
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Division of General Surgery, Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | - Christina L Marcaccio
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Marianna V Papageorge
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Surgery, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts; Department of Surgery, Yale School of Medicine, New Haven, Connecticut
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - April E Mendoza
- Department of Surgery, University of California San Francisco - East Bay, Oakland, California
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Barili F, Brophy JM, Ronco D, Myers PO, Uva MS, Almeida RMS, Marin-Cuartas M, Anselmi A, Tomasi J, Verhoye JP, Musumeci F, Mandrola J, Kaul S, Papatheodorou S, Parolari A. Risk of Bias in Randomized Clinical Trials Comparing Transcatheter and Surgical Aortic Valve Replacement: A Systematic Review and Meta-analysis. JAMA Netw Open 2023; 6:e2249321. [PMID: 36595294 PMCID: PMC9857525 DOI: 10.1001/jamanetworkopen.2022.49321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
IMPORTANCE Recent European Society of Cardiology/European Association for Cardio-Thoracic Surgery (ESC/EACTS) guidelines highlighted some concerns about the randomized clinical trials (RCTs) comparing transcatheter aortic valve implantation (TAVI) and surgical aortic valve replacement (SAVR) for aortic stenosis. Quantification of these biases has not been previously performed. OBJECTIVE To assess whether randomization protects RCTs comparing TAVI and SAVR from biases other than nonrandom allocation. DATA SOURCES A systematic review of the literature between January 1, 2007, and June 6, 2022, on MEDLINE, Embase, and Cochrane Central Register of Controlled Trials was performed. Specialist websites were also checked for unpublished data. STUDY SELECTION The study included RCTs with random allocation to TAVI or SAVR with a maximum 5-year follow-up. DATA EXTRACTION AND SYNTHESIS Data extraction was performed by 2 independent investigators following the PRISMA guidelines. A random-effects meta-analysis was used for quantifying pooled rates and differential rates between treatments of deviation from random assigned treatment (DAT), loss to follow-up, and receipt of additional treatments. MAIN OUTCOMES AND MEASURES The primary outcomes were the proportion of DAT, loss to follow-up, and patients who were provided additional treatments and myocardial revascularization, together with their ratio between treatments. The measures were the pooled overall proportion of the primary outcomes and the risk ratio (RR) in the TAVI vs SAVR groups. RESULTS The search identified 8 eligible trials including 8849 participants randomly assigned to undergo TAVI (n = 4458) or SAVR (n = 4391). The pooled proportion of DAT among the sample was 4.2% (95% CI, 3.0%-5.6%), favoring TAVI (pooled RR vs SAVR, 0.16; 95% CI, 0.08-0.36; P < .001). The pooled proportion of loss to follow-up was 4.8% (95% CI, 2.7%-7.3%). Meta-regression showed a significant association between the proportion of participants lost to follow-up and follow-up time (slope, 0.042; 95% CI, 0.017-0.066; P < .001). There was an imbalance of loss to follow-up favoring TAVI (RR, 0.39; 95% CI, 0.28-0.55; P < .001). The pooled proportion of patients who had additional procedures was 10.4% (95% CI, 4.4%-18.5%): 4.6% (95% CI, 1.5%-9.3%) in the TAVI group and 16.5% (95% CI, 7.5%-28.1%) in the SAVR group (RR, 0.27; 95% CI, 0.15-0.50; P < .001). The imbalance between groups also favored TAVI for additional myocardial revascularization (RR, 0.40; 95% CI, 0.24-0.68; P < .001). CONCLUSIONS AND RELEVANCE This study suggests that, in RCTs comparing TAVI vs SAVR, there are substantial proportions of DAT, loss to follow-up, and additional procedures together with systematic selective imbalance in the same direction characterized by significantly lower proportions of patients undergoing TAVI that might affect internal validity.
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Affiliation(s)
- Fabio Barili
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
- Department of Cardiac Surgery, S. Croce Hospital, Cuneo, Italy
| | - James M. Brophy
- Department of Medicine, McGill Health University Center, Montreal, Quebec, Canada
| | - Daniele Ronco
- Department of University Cardiac Surgery, IRCCS Policlinico San Donato, Milan, Italy
| | - Patrick O. Myers
- Division of Cardiac Surgery, CHUV–Lausanne University Hospital, Lausanne, Switzerland
| | - Miguel Sousa Uva
- Department of Cardiac Surgery, Hospital Santa Cruz, Carnaxide, Portugal
- Department of Cardiac Surgery and Physiology, Porto University Medical School, Porto, Portugal
| | - Rui M. S. Almeida
- University Center Assis Gurgacz Foundation, Cascavel, Paraná, Brazil
| | - Mateo Marin-Cuartas
- University Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
| | - Amedeo Anselmi
- Department of Thoracic and Cardiovascular Surgery, University Hospital of Rennes, Rennes, France
| | - Jacques Tomasi
- Department of Thoracic and Cardiovascular Surgery, University Hospital of Rennes, Rennes, France
| | - Jean-Philippe Verhoye
- Department of Thoracic and Cardiovascular Surgery, University Hospital of Rennes, Rennes, France
| | - Francesco Musumeci
- Department of Cardiac Surgery and Heart Transplantation, San Camillo Forlanini Hospital, Rome, Italy
| | | | - Sanjay Kaul
- Department of Cardiology, Cedars-Sinai Medical Center, Los Angeles, California
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Alessandro Parolari
- Department of University Cardiac Surgery, IRCCS Policlinico San Donato, Milan, Italy
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Leung M, Laden F, Coull BA, Modest AM, Hacker MR, Wylie BJ, Iyer HS, Hart JE, Wei Y, Schwartz J, Weisskopf MG, Papatheodorou S. Ambient temperature during pregnancy and fetal growth in Eastern Massachusetts, USA. Int J Epidemiol 2022:6887251. [PMID: 36495569 DOI: 10.1093/ije/dyac228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 11/29/2022] [Indexed: 12/14/2022] Open
Abstract
Abstract
Background
Left unabated, rising temperatures pose an escalating threat to human health. The potential effects of hot temperatures on fetal health have been under-explored. Here, we examined the association between prenatal ambient temperature exposure and fetal growth measures in a Massachusetts-based pregnancy cohort.
Methods
We used ultrasound measurements of biparietal diameter (BPD), head circumference (HC), femur length and abdominal circumference (AC), in addition to birthweight (BW), from 9446 births at Beth Israel Deaconess Medical Center from 2011 to 2016. Ultrasound scans were classified into three distinct gestational periods: 16–23 weeks, 24–31 weeks, 32+ weeks; and z-scores were created for each fetal growth measure using the INTERGROWTH-21st standards. We fitted distributed lag models to estimate the time-varying association between weekly temperature and fetal growth, adjusting for sociodemographic characteristics, seasonal and long-term trends, humidity and particulate matter (PM2.5).
Results
Higher ambient temperature was associated with smaller fetal growth measures. The critical window of exposure appeared to be Weeks 1–20 for ultrasound parameters, and high temperatures throughout pregnancy were important for BW. Associations were strongest for head parameters (BPD and HC) in early to mid-pregnancy, AC late in pregnancy and BW. For example, a 5ºC higher cumulative temperature exposure was associated with a lower mean AC z-score of -0.26 (95% CI: -0.48, -0.04) among 24–31-Week scans, and a lower mean BW z-score of -0.32 (95% CI: -0.51, -0.12).
Conclusion
Higher temperatures were associated with impaired fetal growth. This has major health implications given that extreme temperatures are more common and escalating.
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Affiliation(s)
- Michael Leung
- Department of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, MA, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston, MA, USA
| | - Francine Laden
- Department of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, MA, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School , Boston, MA, USA
| | - Brent A Coull
- Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston, MA, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health , Boston, MA, USA
| | - Anna M Modest
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center , Boston, MA, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School , Boston, MA, USA
| | - Michele R Hacker
- Department of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, MA, USA
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center , Boston, MA, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School , Boston, MA, USA
| | - Blair J Wylie
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center , Boston, MA, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School , Boston, MA, USA
| | - Hari S Iyer
- Division of Population Sciences, Dana-Farber Cancer Institute , Boston, MA, USA
| | - Jaime E Hart
- Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School , Boston, MA, USA
| | - Yaguang Wei
- Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston, MA, USA
| | - Joel Schwartz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, MA, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston, MA, USA
| | - Marc G Weisskopf
- Department of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, MA, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston, MA, USA
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Vasilou A, Papatheodorou S, Papathanasiou N, Spyropoulou D, Panayiotakis G. CLINICAL IMPLEMENTATION OF PET/CT IMAGING IN RADIOTHERAPY TREATMENT PLANNING. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)03079-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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21
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Ganou C, Ganos A, Panayiotakis G, Papatheodorou S. A PROGRAM FOR SHIELDING CALCULATIONS OF MEDICAL LINEAR ACCELERATOR INSTALLATIONS. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)03124-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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22
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Requia WJ, Koutrakis P, Papatheodorou S. The association of maternal exposure to ambient temperature with low birth weight in term pregnancies varies by location: In Brazil, positive associations may occur only in the Amazon region. Environ Res 2022; 214:113923. [PMID: 35863440 DOI: 10.1016/j.envres.2022.113923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/20/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Exposure to ambient temperature has been linked to adverse birth outcomes in several regions, including the USA, Australia, China, countries in the Middle East, and European countries. To date, no studies were performed in South America, a region with serious challenges related to climate change. Our investigation addresses this literature lack by examining the association between Low Birth Weight (LBW) and ambient temperature exposure in the largest county in South America, Brazil. We applied a nationwide case-control study design using a logistic regression model to estimate the odds ratio (OR) for LBW associated with ambient temperature during a specific trimester of pregnancy (1-3 trimester). Our sample size includes 5,790,713 birth records nationwide over 18 years (2001-2018), of which 264,967 infants were included in the model as cases of LBW, representing 4.6% of our total sample. We adjusted our model for several confounding variables, including weather factors, air pollution, seasonality, and SES variables at the individual level. Our findings indicate that North was the only region with positive and statistically significant associations in the primary analysis and most of the sensitivity analysis, which is the region where the Amazon is located. In this region, we estimated an increase of 5.16% (95%CI: 3.60; 6.74) in the odds of LBW per 1 °C increase in apparent temperature when the exposure occurred in the second trimester. Our results may be explained by the climate conditions in the Amazon region in the past years. A large body of literature indicates that the Amazon region has been facing serious climate challenges including issues related to policy, governance, and deforestation. Specifically, regarding deforestation, it is suggested that land use change and deforestation is projected to increase heat stress in the Amazon region, because of Amazon savannization, increasing the risk of heat stress exposure in Northern Brazil. Our study can assist public sectors and clinicians in mitigating the risk and vulnerability of the Amazonian population.
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Affiliation(s)
- Weeberb J Requia
- School of Public Policy and Government, Fundação Getúlio Vargas Brasília, Distrito Federal, Brazil.
| | - Petros Koutrakis
- Department of Environmental Health, Harvard TH Chan School of Public Health Boston, Massachusetts, United States
| | - Stefania Papatheodorou
- Department of Environmental Health, Harvard TH Chan School of Public Health Boston, Massachusetts, United States
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Requia WJ, Kill E, Papatheodorou S, Koutrakis P, Schwartz JD. Prenatal exposure to wildfire-related air pollution and birth defects in Brazil. J Expo Sci Environ Epidemiol 2022; 32:596-603. [PMID: 34504295 DOI: 10.1038/s41370-021-00380-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 05/05/2023]
Abstract
BACKGROUND Birth defects are a major cause of poor health outcomes during both childhood and adulthood. A growing body of evidence demonstrated associations between air pollution exposure during pregnancy and birth defects. To date, there is no study looking at birth defects and exposure to wildfire-related air pollution, which is suggested as a type of air pollution source with high toxicity for reproductive health. OBJECTIVE Our study addresses this gap by examining the association between birth defects and wildfire smoke exposure in Brazil between 2001 and 2018. Based on known differences of impacts of wildfires across different regions of Brazil, we hypothesized differences in risks of birth defects for different regions. METHODS We used a logistic regression model to estimate the odds ratios (ORs) for individual birth defects (12 categories) associated with wildfire exposure during each trimester of pregnancy. RESULTS Among the 16,825,497 birth records in our study population, there were a total of 7595 infants born in Brazil between 2001 and 2018 with birth defects in any of the selected categories. After adjusting for several confounders in the primary analysis, we found statistically significant OR for three birth defects, including cleft lip/cleft palate [OR: 1.007 (95% CI: 1.001; 1.013)] during the second trimester of exposure, congenital anomalies of the respiratory system [OR: 1.013 (95% CI: 1.002; 1.023)] in the second trimester of exposure, and congenital anomalies of the nervous system [OR: 1.002 (95% CI: 1.001; 1.003)] during the first trimester of exposure for the regions South, North, and Midwest, respectively. SIGNIFICANCE Our results suggest that maternal exposure to wildfire smoke during pregnancy may increase the risk of an infant being born with some congenital anomaly. Considering that birth defects are associated with long-term disability, impacting families and the healthcare system (e.g., healthcare costs), our findings should be of great concern to the public health community. IMPACT STATEMENT Our study focused on the association between maternal exposure to wildfire smoke in Brazil during pregnancy and the risk of an infant being born with congenital anomalies, which presents serious public health and environmental challenges.
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Affiliation(s)
- Weeberb J Requia
- School of Public Policy and Government, Fundação Getúlio Vargas, Brasília, Distrito Federal, Brazil.
| | - Erick Kill
- Faculty of Medicine, Department of Pathology, University of Sao Paulo, Sao Paulo, Brazil
| | | | - Petros Koutrakis
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Joel D Schwartz
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
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Androulakis E, Papatheodorou S, Merghani A, Sharma S, Papadakis M. Patterns and clinical significance of non-specific myocardial fibrosis; Evidence from a cohort of young competitive athletes referred to a tertiary referral centre. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Non-specific myocardial fibrosis (NSMF) is a heterogeneous entity whose clinical significance remains unknown.
Purpose
We aimed to evaluate a cohort of young competitive athletes with and without NSMF to establish potentially clinically significance.
Methods
We analysed data from 328 young athletic individuals referred to our dedicated Sports Cardiology service for a variety of reasons. All athletes underwent an evaluation with 12-lead ECG, Holter, cardiopulmonary exercise test (CPET) and cardiac magnetic resonance (CMR). After excluding individuals with NSMF due to a well-defined cardiac condition, we identified 60 athletes with NSMF (80% male, 72% white, 65% endurance sport) and compared them with a similar group of 75 athletes no fibrosis. Athletes with NSMF were further divided into Group 1 (n=32) with minimal (‘minor’) fibrosis and Group 2 (n=28), with more extended/non-focal (‘major’) fibrosis. Athletes were followed-up for adverse events, including supraventricular and ventricular tachycardia (VT), cardiac symptoms leading to A/E presentations and hospital admissions.
Results
Hours of exercise, baseline heart rate, cardiac volumes, function and CPET performance were similar between the two groups. Athletes with NSMF demonstrated a higher prevalence of lateral T-wave inversion (48 vs. 17%, p<0.001) and ventricular arrhythmias (VEs>500/24h 13.1 vs 2.6%, p=0.046; non-sustained ventricular tachycardia 5.2% vs 0%) compared to athletes without NSMF. Regarding fibrosis localization, 28.6% of the NSMF group had mid-wall, 16.1% subepicardial and 7.1% subendocardial patterns respectively. Athletes of black ethnicity were more likely to have a subepicardial pattern (OR: 5, CI; 1.45-16.67, p=0.004) and those with lateral T-wave inversion (OR: 5.40, CI; 1.70-17.10, p=0.004) were more likely to exhibit major NSMF. In contrast, athletes with minor NSMF had higher right ventricular end diastolic (RVEDV) volumes (104.2±3.6 vs 86.9±5.3 mL/m2, p=0.008) and demonstrated higher values of maximum heart rate (182±13 vs 171±15 bpm, p=0.016), maximum Watts (328.5±18.5 vs 259.2±8.2, p=0.017) and maximum oxygen uptake (V02) (p=0.003), compared to athletes with major NSMF. After adjustment for confounders, the presence of lateral T-wave inversion (p=0.026) and a maximum <44 mL/min/Kg (p=0.040) remained the only significant predictors for presence of major NSMF. During 45.5±25.1 months of follow up, 20 adverse events occurred. No athlete exhibited cardiac arrest or death. Cox regression analysis revealed athletes with major fibrosis were 9.1 more likely to exhibit an adverse event (CI; 1.1-76.3, p=0.041).
Conclusions
The presence of lateral T-wave inversions is associated with increased risk of myocardial fibrosis and should prompt comprehensive evaluation with a cardiac MRI. Major fibrosis was associated with increased prevalence of arrhythmias and adverse events, highlighting the importance of close monitoring and long-term follow-up.
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Affiliation(s)
- E Androulakis
- Royal Brompton and Harefield Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - S Papatheodorou
- St George's University Hospital NHS Foundation Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - A Merghani
- St George's University Hospital NHS Foundation Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - S Sharma
- St George's University Hospital NHS Foundation Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - M Papadakis
- St George's University Hospital NHS Foundation Trust, London, United Kingdom of Great Britain & Northern Ireland
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Talaat H, Bashayan S, J N Raymakers A, Bayoumi AM, Papatheodorou S, Sediqzadah S. Health-related quality of life measures in incarcerated populations: protocol for a scoping review. BMJ Open 2022; 12:e052800. [PMID: 35470181 PMCID: PMC9039373 DOI: 10.1136/bmjopen-2021-052800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Incarcerated populations represent a vulnerable and marginalised segment of society, with increased health needs and a higher burden of communicable and non-communicable diseases. Traditional population health outcomes do not capture physical, mental, emotional and social well-being. Health-related quality of life (HRQoL) outcomes attempt to measure these important parameters. To date, there has not been a scoping review to summarise the HRQoL literature in the incarcerated population. Thus, we aim to perform such a review to inform health policy decisions in incarcerated populations and support health economic evaluations of interventions in incarcerated populations. METHODS AND ANALYSIS We will conduct a scoping review of the literature on the HRQoL in the incarcerated population informed by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and the corresponding PRISMA Extension for Scoping Reviews. The submissions records of six electronic databases with peer-reviewed literature and three health technology assessment agencies will be searched. The search strategy was informed by recommendations for HRQoL reviews. We will include studies that report HRQoL, health state utility values or reference to quality adjusted life years or quality-adjusted life expectancies of incarcerated populations. No assessments of items' quality will be made, as the purpose of this scoping review is to synthesise and describe the coverage of the evidence. We will also identify knowledge gaps on the HRQoL in the incarcerated population. ETHICS AND DISSEMINATION Research ethics approval is not required as primary data will not be collected. The findings of this scoping review will be used to inform health economic analyses for the incarcerated population and will be disseminated through peer-reviewed publications and conference presentations.
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Affiliation(s)
- Habeba Talaat
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Seniyyeh Bashayan
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Adam J N Raymakers
- Faculty of Health Science, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Ahmed M Bayoumi
- Centre for Research on Inner City Health, Keenan Research Centre of the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | | | - Saadia Sediqzadah
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, St Michael's Hospital, Toronto, Ontario, Canada
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d'Entremont MA, Yagi R, Salia SJS, Zhang S, Shaban L, Bene-Alhasan Y, Papatheodorou S, Couture ÉL, Huynh T, Nguyen M, Hamaya R. The effect of diabetes on surgical versus percutaneous left main revascularization outcomes: a systematic review and meta-analysis. J Cardiothorac Surg 2022; 17:61. [PMID: 35365159 PMCID: PMC8973812 DOI: 10.1186/s13019-022-01795-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/12/2022] [Indexed: 12/02/2022] Open
Abstract
Background The optimal method of coronary revascularization for diabetes mellitus (DM) patients with left main coronary artery disease (LMCAD) is controversial in the drug-eluting stent (DES) era. Methods We performed a systematic review and meta-analysis comparing DES-based percutaneous coronary intervention (PCI) to coronary artery bypass grafting (CABG) for LMCAD in DM patients and tested for effect measure modification (EMM) by diabetes for adverse events. We included all randomized controlled trials (RCTs) and observational studies comparing CABG to DES-based PCI including DM patients with LMCAD published up to March 1, 2021. We completed separate random-effects meta-analyses for four RCTs (4356 patients, mean follow-up of 4.9 years) and six observational studies (9360 patients, mean follow-up of 5.2 years). Results In RCTs among DM patients, DES-based PCI, compared to CABG, was associated with a 30% increased relative risk (RR) (RR 1.30, 95% CI 1.09–1.56, I2 = 0%), while among non-DM patients, there was a 25% increased relative risk (RR 1.25, 95% CI 1.07–1.44, I2 = 0%) for the composite endpoint of all-cause mortality, myocardial infarction, stroke, and unplanned revascularization (MACCE). There was no evidence of EMM (p-value for interaction = 0.70). The mean weighted SYNTAX score was 25.7. In observational studies, there was no difference between DES-based PCI and CABG for all-cause mortality in patients with DM (RR 1.13, 95% CI 0.91–1.40, I2 = 0%). Conclusions CABG was superior to PCI for LMCAD in RCTs in DM patients for MACCE. Heart teams may consider DM as one of the many components in the clinical decision-making process, but may not want to consider DM as a primary deciding factor between DES-based PCI and CABG for LMCAD with low to intermediate anatomical complexity in the other coronary arteries. Study registration CRD42021246931 (PROSPERO). Supplementary Information The online version contains supplementary material available at 10.1186/s13019-022-01795-w.
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Affiliation(s)
- Marc-André d'Entremont
- Division of Cardiology, Department of Medicine, Sherbrooke University Hospital Center (CHUS), 3001, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada. .,Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Ryuichiro Yagi
- Harvard T.H. Chan School of Public Health, Boston, MA, USA.,Saiseikai Central Hospital, Tokyo, Japan
| | | | - Shuqi Zhang
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Lamyaa Shaban
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | | | - Étienne L Couture
- Division of Cardiology, Department of Medicine, Sherbrooke University Hospital Center (CHUS), 3001, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada
| | - Thao Huynh
- McGill Health University Center, Montreal, QC, Canada
| | - Michel Nguyen
- Division of Cardiology, Department of Medicine, Sherbrooke University Hospital Center (CHUS), 3001, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada
| | - Rikuta Hamaya
- Harvard T.H. Chan School of Public Health, Boston, MA, USA.,Brigham and Women's Hospital, Boston, MA, USA
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27
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Leung M, Weisskopf MG, Laden F, Coull BA, Modest AM, Hacker MR, Wylie BJ, Wei Y, Schwartz J, Papatheodorou S. Exposure to PM2.5 during Pregnancy and Fetal Growth in Eastern Massachusetts, USA. Environ Health Perspect 2022; 130:17004. [PMID: 34989624 PMCID: PMC8734565 DOI: 10.1289/ehp9824] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 12/09/2021] [Accepted: 12/15/2021] [Indexed: 05/29/2023]
Abstract
BACKGROUND Prior studies have examined the association between fine particulate matter [PM ≤2.5μm in aerodynamic diameter (PM2.5)] and fetal growth with either limited spatial or temporal resolution. OBJECTIVES In this study, we examined the association between PM2.5 exposure during pregnancy and fetal growth measures (ultrasound parameters and birth weight) in a pregnancy cohort using spatiotemporally resolved PM2.5 in Eastern Massachusetts, USA. METHODS We used ultrasound measures of biparietal diameter (BPD), head circumference, femur length, and abdominal circumference (AC), in addition to birth weight, from 9,446 pregnancies that were delivered at the Beth Israel Deaconess Medical Center from 2011-2016. We used linear mixed-effects models to examine the associations of PM2.5 in two exposure windows (the first 16 wk of pregnancy and the cumulative exposure up until the assessment of fetal growth) with anatomic scans (ultrasound measures at<24 wk), growth scans (ultrasound measures at≥24wk), and birth weight. All models were adjusted for sociodemographic characteristics, long-term trends, and temperature. RESULTS Higher PM2.5 exposure in the first 16 wk was associated with smaller fetal growth measures, where associations were particularly strong for BPD, AC, and birth weight. For example, a 5-μg/m3 increase in PM2.5 was associated with a lower mean BPD z-score of -0.19 (95% CI: -0.31, -0.06) before 24 wk, a lower mean AC z-score of -0.15 (95% CI: -0.28, -0.01) after 24 wk, and a lower mean birth weight z-score of -0.11 (95% CI: -0.20, -0.01). Analyses examining the associations with cumulative PM2.5 exposure up until the assessment of fetal growth produced attenuated associations. CONCLUSIONS Higher gestational exposure to PM2.5 was associated with smaller fetal growth measures at levels below the current national standards. https://doi.org/10.1289/EHP9824.
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Affiliation(s)
- Michael Leung
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Marc G. Weisskopf
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Francine Laden
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Brent A. Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Anna M. Modest
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Michele R. Hacker
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Blair J. Wylie
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Yaguang Wei
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Joel Schwartz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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Sotiriadis A, McGoldrick E, Makrydimas G, Papatheodorou S, Ioannidis JP, Stewart F, Parker R. Antenatal corticosteroids prior to planned caesarean at term for improving neonatal outcomes. Cochrane Database Syst Rev 2021; 12:CD006614. [PMID: 34935127 PMCID: PMC8692259 DOI: 10.1002/14651858.cd006614.pub4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Infants born at term by elective caesarean section are more likely to develop respiratory morbidity than infants born vaginally. Prophylactic corticosteroids in singleton preterm pregnancies accelerate lung maturation and reduce the incidence of respiratory complications. It is unclear whether administration at term gestations, prior to caesarean section, improves the respiratory outcomes for these babies without causing any unnecessary morbidity to the mother or the infant. OBJECTIVES The objective of this review was to assess the effect of prophylactic corticosteroid administration before elective caesarean section at term, as compared to usual care (which could be placebo or no treatment), on fetal, neonatal and maternal morbidity. We also assessed the impact of the treatment on the child in later life. SEARCH METHODS For this update, we searched Cochrane Pregnancy and Childbirth's Trials Register, ClinicalTrials.gov (20 January 2021) and reference lists of retrieved studies. SELECTION CRITERIA We included randomised controlled trials comparing prophylactic antenatal corticosteroid administration (betamethasone or dexamethasone) with placebo or with no treatment, given before elective caesarean section at term (at or after 37 weeks of gestation). Quasi-randomised and cluster-randomised controlled trials were also eligible for inclusion. DATA COLLECTION AND ANALYSIS We used standard Cochrane Pregnancy and Childbirth methods for data collection and analysis. Two review authors independently assessed trials for inclusion, assessed risk of bias, evaluated trustworthiness (based on predefined criteria developed by Cochrane Pregnancy and Childbirth), extracted data and checked them for accuracy and assessed the certainty of the evidence using the GRADE approach. Our primary outcomes were respiratory distress syndrome (RDS), transient tachypnoea of the neonate (TTN), admission to neonatal special care for respiratory morbidity and need for mechanical ventilation. We planned to perform subgroup analyses for the primary outcomes according to gestational age at randomisation and type of corticosteroid (betamethasone or dexamethasone). We also planned to perform sensitivity analysis, including only studies at low risk of bias. MAIN RESULTS We included one trial in which participants were randomised to receive either betamethasone or usual care. The trial included 942 women and 942 neonates recruited from 10 UK hospitals between 1995 and 2002. This review includes only trials that met predefined criteria for trustworthiness. We removed three trials from the analysis that were included in the previous version of this review. The risk of bias was low for random sequence generation, allocation concealment and incomplete outcome data. The risk of bias for selective outcome reporting was unclear because there was no published trial protocol, and therefore it is unclear whether all the planned outcomes were reported in full. Due to a lack of blinding we judged there to be high risk of performance bias and detection bias. We downgraded the certainty of the evidence because of concerns about risk of bias and because of imprecision due to low event rates and wide 95% confidence intervals (CIs), which are consistent with possible benefit and possible harm Compared with usual care, it is uncertain if antenatal corticosteroids reduce the risk of RDS (relative risk (RR) 0.34 95% CI 0.07 to 1.65; 1 study; 942 infants) or TTN (RR 0.52, 95% CI 0.25 to 1.11; 1 study; 938 infants) because the certainty of evidence is low and the 95% CIs are consistent with possible benefit and possible harm. Antenatal corticosteroids probably reduce the risk of admission to neonatal special care for respiratory complications, compared with usual care (RR 0.45, 95% CI 0.22 to 0.90; 1 study; 942 infants; moderate-certainty evidence). The proportion of infants admitted to neonatal special care for respiratory morbidity after treatment with antenatal corticosteroids was 2.3% compared with 5.1% in the usual care group. It is uncertain if antenatal steroids have any effect on the risk of needing mechanical ventilation, compared with usual care (RR 4.07, 95% CI 0.46 to 36.27; 1 study; 942 infants; very low-certainty evidence). The effect of antenatal corticosteroids on the maternal development of postpartum infection/pyrexia in the first 72 hours is unclear due to the very low certainty of the evidence; one study (942 women) reported zero cases. The included studies did not report any data for neonatal hypoglycaemia or maternal mortality/severe mortality. AUTHORS' CONCLUSIONS Evidence from one randomised controlled trial suggests that prophylactic corticosteroids before elective caesarean section at term probably reduces admission to the neonatal intensive care unit for respiratory morbidity. It is uncertain if administration of antenatal corticosteroids reduces the rates of respiratory distress syndrome (RDS) or transient tachypnoea of the neonate (TTN). The overall certainty of the evidence for the primary outcomes was found to be low or very low, apart from the outcome of admission to neonatal special care (all levels) for respiratory morbidity, for which the evidence was of moderate certainty. Therefore, there is currently insufficient data to draw any firm conclusions. More evidence is needed to investigate the effect of prophylactic antenatal corticosteroids on the incidence of recognised respiratory morbidity such as RDS. Any future trials should assess the balance between respiratory benefit and potential immediate adverse effects (e.g. hypoglycaemia) and long-term adverse effects (e.g. academic performance) for the infant. There is very limited information on maternal health outcomes to provide any assurances that corticosteroids do not pose any increased risk of harm to the mother. Further research should consider investigating the effectiveness of antenatal steroids at different gestational ages prior to caesarean section. There are nine potentially eligible studies that are currently ongoing and could be included in future updates of this review.
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Affiliation(s)
- Alexandros Sotiriadis
- Second Department of Obstetrics and Gynaecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Emma McGoldrick
- Obstetrics Directorate, Liverpool Women's NHS Foundation Trust, Liverpool, UK
| | - George Makrydimas
- Department of Obstetrics and Gynaecology, University Hospital of Ioannina, Ioannina, Greece
| | | | - John Pa Ioannidis
- Stanford Prevention Research Center, Department of Medicine and Department of Health Research and Policy, Palo Alto, California, USA
| | - Fiona Stewart
- c/o Cochrane Incontinence, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
- c/o Cochrane Pregnancy and Childbirth, Department of Women's and Children's Health, The University of Liverpool, Liverpool, UK
| | - Roses Parker
- Cochrane MOSS Network, c/o Cochrane Pain Palliative and Supportive Care Group, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
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Requia WJ, Papatheodorou S, Koutrakis P, Mukherjee R, Roig HL. Increased preterm birth following maternal wildfire smoke exposure in Brazil. Int J Hyg Environ Health 2021; 240:113901. [PMID: 34891058 DOI: 10.1016/j.ijheh.2021.113901] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/30/2021] [Accepted: 12/03/2021] [Indexed: 10/19/2022]
Abstract
Preterm birth (PTB) complications are the leading cause of death among children under 5 years of age, responsible for approximately 1 million deaths in 2015, according to the World Health Organization. Those infants born prematurely who survived the first 5 years, studies suggest that these infants are more likely to experience a range of poor health outcomes during childhood and even adulthood. Wildfire smoke has been suggested as a type of air pollution source with high toxicity for reproductive health. In this study, we estimated the association between preterm birth and wildfire periods in Brazil, a country included in the list of the 10 nations with the greatest number of preterm birth and also considered as a very fire-prone region. We applied a time-stratified case-crossover study design using conditional logistic regression models to estimate the odds ratio for preterm birth associated with wildfire-related prenatal PM2.5, during different windows of exposure, including trimesters 1-3. After adjusting for several confounders (other air pollutants, demographics, meteorological variables, and spatiotemporal terms), we found that wildfire smoke exposure during pregnancy may be associated with preterm birth in Brazil. Southeast was the region with the highest increase in the odds of PTB (OR:1.41 (95%CI: 1.31-1.51) when the exposure occurred in the first trimester. In the North, exposure to PM2.5 during wildfire periods in the second trimester of pregnancy was associated with increased odds of PTB (OR:1.05 (95%CI: 1.01-1.09) in preterm birth when the exposure occurred in the second trimester. This study suggests that wildfire smoke exposure during pregnancy may increase the risk for preterm birth in Brazil. This should be of great concern to the public health authorities, obstetricians, and policymakers.
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Affiliation(s)
- Weeberb J Requia
- School of Public Policy and Government, Fundação Getúlio Vargas Brasília, Distrito Federal, Brazil.
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, Massachusetts, United States
| | - Petros Koutrakis
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, Massachusetts, United States
| | - Rajarshi Mukherjee
- Department of Biostatistics, Harvard TH Chan School of Public Health, Boston, Massachusetts, United States
| | - Henrique L Roig
- Geoscience Institute, University of Brasilia, Brasília, Distrito Federal, Brazil
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Hamaya R, Chang YT, Chewcharat A, Chiu N, Yonetsu T, Kakuta T, Papatheodorou S. Comparison of invasive treatment strategies in patients with non–ST elevation acute coronary syndrome: A systematic review and meta-analysis. JTCVS Open 2021; 8:323-335. [PMID: 36004105 PMCID: PMC9390253 DOI: 10.1016/j.xjon.2021.08.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 08/20/2021] [Indexed: 11/24/2022]
Abstract
Objective To compare the mortality associated with percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) in patients with non–ST elevation acute coronary syndrome (NSTE-ACS). Methods We searched publications from PubMed, Embase, Web of Science, and the Cochrane Library from inception until December 23, 2020. All randomized clinical trials (RCTs) and observational studies comparing all-cause mortality after treatment with CABG versus PCI for patients with NSTE-ACS with minimum follow-up of 6 months were included. Restricted mean survival time (RMST) differences from RCTs and adjusted RMST differences from observational studies were computed by reconstructing time-to-event data from published Kaplan–Meier curves. Extracted hazard ratios (HRs) were also assessed as a secondary analysis. Results Our systematic review included an individual participant data analysis of 3 RCTs and 8 observational studies. A meta-regression showed a significant association between log-transformed HRs and duration of follow-up (−0.009 [95% confidence interval (CI), −0.002 to −0.016] log-HR per 1-year longer follow-up; P = .037), suggesting a violation of the proportional hazard assumption. Analysis of 6 studies with available RMST data showed a significant inverse association between adjusted RMST differences and cutoff years (slope, −0.028 [95% CI, −0.042 to −0.013] year difference per 1-year longer cutoff; P < .005), suggesting a longer survival benefit in the CABG arm compared with the PCI arm with longer follow-up. Conclusions There was a trend toward a benefit of CABG compared with PCI in the longer follow-up in patients with NSTE-ACS. A large, well-designed RCT with longer follow-up is needed to obtain definitive evidence on this topic.
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Qian Y, Li H, Rosenberg A, Li Q, Sarnat J, Papatheodorou S, Schwartz J, Liang D, Liu Y, Liu P, Shi L. Long-Term Exposure to Low-Level NO2 and Mortality among the Elderly Population in the Southeastern United States. Environ Health Perspect 2021; 129:127009. [PMID: 34962424 PMCID: PMC8713651 DOI: 10.1289/ehp9044] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 10/01/2021] [Accepted: 11/29/2021] [Indexed: 05/23/2023]
Abstract
BACKGROUND Mounting evidence has shown that long-term exposure to fine particulate matter [PM ≤2.5μm in aerodynamic diameter (PM2.5)] and ozone (O3) can increase mortality. However, the health effects associated with long-term exposure to nitrogen dioxide (NO2) are less clear, in particular the evidence is scarce for NO2 at low levels that are below the current international guidelines. METHODS We constructed a population-based full cohort comprising all Medicare beneficiaries (aged ≥65, N=13,590,387) in the southeastern United States from 2000 to 2016, and we then further defined the below-guideline cohort that included only those who were always exposed to low-level NO2, that is, with annual means below the current World Health Organization guidelines (i.e., ≤21 ppb). We applied previously estimated spatially and temporally resolved NO2 concentrations and assigned annual means to study participants based on their ZIP code of residence. Cox proportional hazards models were used to examine the association between long-term exposure to low-level NO2 and all-cause mortality, adjusting for potential confounders. RESULTS About 71.1% of the Medicare beneficiaries in the southeastern United States were always exposed to low-level NO2 over the study period. We observed an association between long-term exposure to low-level NO2 and all-cause mortality, with a hazard ratio (HR)= 1.042 (95% CI: 1.040, 1.045) in single-pollutant models and a HR= 1.047 (95% CI: 1.045, 1.049) in multipollutant models (adjusting for PM2.5 and O3), per 10-ppb increase in annual NO2 concentrations. The penalized spline indicates a linear exposure-response relationship across the entire NO2 exposure range. Medicare enrollees who were White, female, and residing in urban areas were more vulnerable to long-term NO2 exposure. CONCLUSION Using a large and representative cohort, we provide epidemiological evidence that long-term exposure to NO2, even below the national and global ambient air quality guidelines, was approximately linearly associated with a higher risk of mortality among older adults, independent of PM2.5 and O3 exposure. Improving air quality by reducing NO2 emissions, therefore, may yield significant health benefits. https://doi.org/10.1289/EHP9044.
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Affiliation(s)
- Yaoyao Qian
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Haomin Li
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Andrew Rosenberg
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Qiulun Li
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Jeremy Sarnat
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Joel Schwartz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Donghai Liang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Yang Liu
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Pengfei Liu
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Liuhua Shi
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
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Wang M, Li H, Huang S, Qian Y, Steenland K, Xie Y, Papatheodorou S, Shi L. Short-term exposure to nitrogen dioxide and mortality: A systematic review and meta-analysis. Environ Res 2021; 202:111766. [PMID: 34331919 PMCID: PMC8578359 DOI: 10.1016/j.envres.2021.111766] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/18/2021] [Accepted: 07/23/2021] [Indexed: 05/05/2023]
Abstract
BACKGROUND Ambient air pollution has been characterized as a leading cause of mortality worldwide and has been associated with cardiovascular and respiratory diseases. There is increasing evidence that short-term exposure to nitrogen dioxide (NO2), is related to adverse health effects and mortality. METHODS We conducted a systematic review of short-term NO2 and daily mortality, which were indexed in PubMed and Embase up to June 2021. We calculated random-effects estimates by different continents and globally, and tested for heterogeneity and publication bias. RESULTS We included 87 articles in our quantitative analysis. NO2 and all-cause as well as cause-specific mortality were positively associated in the main analysis. For all-cause mortality, a 10 ppb increase in NO2 was associated with a 1.58% (95%CI 1.28%-1.88%, I2 = 96.3%, Eggers' test p < 0.01, N = 57) increase in the risk of death. For cause-specific mortality, a 10 ppb increase in NO2 was associated with a 1.72% (95%CI 1.41%-2.04%, I2 = 87.4%, Eggers' test p < 0.01, N = 42) increase in cardiovascular mortality and a 2.05% (95%CI 1.52%-2.59%, I2 = 78.5%, Eggers' test p < 0.01, N = 38) increase in respiratory mortality. In the sensitivity analysis, the meta-estimates for all-cause mortality, cardiovascular and respiratory mortality were nearly identical. The heterogeneity would decline to varying degrees through regional and study-design stratification. CONCLUSIONS This study provides evidence of an association between short-term exposure to NO2, a proxy for traffic-sourced air pollutants, and all-cause, cardiovascular and respiratory mortality.
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Affiliation(s)
- Mingrui Wang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Haomin Li
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Shiwen Huang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Yaoyao Qian
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Kyle Steenland
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Yang Xie
- School of Economics and Management, Beihang University, Beijing, China
| | | | - Liuhua Shi
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
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Hage F, Harris AR, Clerc O, Altibi A, Hage A, Hamaya R, Papatheodorou S. Transfemoral versus transapical approach for transcatheter aortic valve implantation: a systematic review and meta-analysis of adjusted studies. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In selected patients with severe aortic stenosis, transcatheter aortic valve implantation (TAVI), via either transfemoral (TF) or transapical (TA) access, offers a less invasive alternative to standard surgical replacement. Comparison of TF- vs. TA-TAVI is usually confounded by the higher comorbidities of patients undergoing TA-TAVI, rendering the observed comparison of the TF- vs. TA-approach unclear. The present meta-analysis provides updated evidence of this comparison by focusing on studies reporting adjusted outcomes.
Methods
A systematic review of the literature was performed in MEDLINE, EMBASE, Web of Science, clinicaltrials.gov, and Cochrane database. We only included studies in which the comparison between TF- and TA-TAVI was adjusted for potential confounders. Primary outcomes were early and mid-term mortality. Secondary outcomes included cardiovascular events, bleeding, pacemaker, and acute kidney injury. Survival data was either obtained directly from reported outcomes or estimated from Kaplan-Meier curves. Meta-regression was used to adjust for follow-up duration. Meta-analyses were performed using random effects models on odds ratios (OR) and hazard ratios (HR). The protocol was registered on PROSPERO (ID: CRD42020218163).
Results
A total of 24 studies with 36,158 patients were included in the present analyses. Of these studies, 7 used propensity score adjustment techniques and 17 used multivariable regression. TA-TAVI was associated with significantly higher postoperative mortality at 30 days (OR=1.67; 95% CI, 1.34 to 2.09; p<0.001) and 1 year (HR, 1.36; 95% CI, 1.21 to 1.53; p<0.001). However, meta-analysis of studies censoring patients who died in the first 30 days showed no significant difference in 1 year mortality by access route (HR, 1.20; 95% CI, 0.95 to 1.52; p=0.13). TA-approach was associated with increased perioperative surgical complications, such as bleeding (OR, 1.46, 95% CI, 1.09 to 1.96; p=0.012), acute kidney injury (OR, 2.31, 95% CI 1.60 to 3.33; p=0.001), and myocardial infarction (OR, 1.83, 95% CI 1.06 to 3.16; p=0.029). TA-TAVI was associated with reduced vascular complications (OR, 0.32, 95% CI 0.18–0.56; p<0.001), late postoperative aortic regurgitation (OR, 0.48, 95% CI 0.30 to 0.75; p=0.001), and a trend towards less pacemaker requirement (OR, 0.80, 95% CI 0.60–1.08, p=0.15).
Conclusions
Based on this meta-analysis of adjusted studies, a TA approach is associated with higher early and mid-term mortality compared to TF-TAVI. Excess mortality is likely driven by higher perioperative bleeding, renal complications and myocardial infarction. TA-TAVI did confer some benefits, such as reduced vascular complications, late postoperative aortic regurgitation, and a trend towards less pacemaker requirement. The optimal TAVI route should be based on individualized assessment by a multidisciplinary team. Longer follow-up and randomized studies are needed to ascertain long-term outcomes.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
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Affiliation(s)
- F Hage
- London Health Sciences Centre, Cardiac surgery, London, Canada
| | - A R Harris
- Harvard T. H. Chan School of Public Health, Epidemiology, Boston, United States of America
| | - O Clerc
- University Hospital Basel, Basel, Switzerland
| | - A Altibi
- Harvard T. H. Chan School of Public Health, Epidemiology, Boston, United States of America
| | - A Hage
- London Health Sciences Centre, Cardiac surgery, London, Canada
| | - R Hamaya
- Harvard T. H. Chan School of Public Health, Epidemiology, Boston, United States of America
| | - S Papatheodorou
- Harvard T. H. Chan School of Public Health, Epidemiology, Boston, United States of America
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Duncan E, Fyyaz S, Papatheodorou S, Merghani A, Papadakis M, Sharma S. Characterisation of ventricular premature beats during exercise testing in masters athletes. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Exercise induced ventricular premature beats (VPBs) are associated with an adverse outcome in patients with cardiac disease and the general population. The incidence and significance of exercise induced VPBs in masters athletes remains unknown.
Methods
237 masters athletes (54.6±8 years of age, 42% male) and 50 controls of similar age and sex were assessed with a 12-lead ECG, echocardiogram, cardiopulmonary exercise test, 24-hour holter, cardiovascular magnetic resonance imaging and a CT coronary angiogram. Athletes had participated in endurance exercise for a meanof 32±12 years.
Results
Athletes achieved a higher VO2 max (43.2 ml/min/kg vs 28 ml/min/kg) compared with controls and on average weighed 12kg less (63kg vs 75kg).
VPBs were common in master athletes during exercise but are no more common than in age matched sedentary controls (39.3% vs 33.3% >1 VPB, and 8.9% vs 5.9% complex or frequent VPBs). There were no sex differences in terms of VPB number (40% vs 39%) or complex morphology (10% vs 8%) between male and female athletes.
Athletes demonstrating complex ectopy during ETT had similar age (54.8±9 and 54.6±8), years of competition (34±9 and 32±12), VO2 max (40±6 and 43±7ml/min/kg), left ventricular mass (142±36g and 148±35g), end diastolic volume (160±35ml and 157±32ml) and incidence of late gadolinium enhancement (14% and 10%) compared with athletes who did not reveal complex VPBs.
Conclusion
VPBs are common during exercise testing in both masters athletes and sedentary age matched controls. Exercise-induced complex ectopy in an asymptomatic, low risk masters athlete represents a poor marker of significant structural heart disease.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): Cardiac Risk in the Young
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Affiliation(s)
- E Duncan
- St George's University of London, London, United Kingdom
| | - S Fyyaz
- St George's University of London, London, United Kingdom
| | | | - A Merghani
- St George's University of London, London, United Kingdom
| | - M Papadakis
- St George's University of London, London, United Kingdom
| | - S Sharma
- St George's University of London, London, United Kingdom
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Papatheodorou S, Gelaye B, Williams MA. Association between omentin-1 and indices of glucose metabolism in early pregnancy: a pilot study. Arch Gynecol Obstet 2021; 305:589-596. [DOI: 10.1007/s00404-021-06197-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 08/17/2021] [Indexed: 10/20/2022]
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Huang S, Li H, Wang M, Qian Y, Steenland K, Caudle WM, Liu Y, Sarnat J, Papatheodorou S, Shi L. Long-term exposure to nitrogen dioxide and mortality: A systematic review and meta-analysis. Sci Total Environ 2021; 776:145968. [PMID: 33640547 PMCID: PMC8499020 DOI: 10.1016/j.scitotenv.2021.145968] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/29/2021] [Accepted: 02/14/2021] [Indexed: 05/05/2023]
Abstract
BACKGROUND Ambient air pollution is among the greatest environmental risks to human health. However, little is known about the health effects of nitrogen dioxide (NO2), a traffic-related air pollutant. Herein, we aimed to conduct a meta-analysis to investigate the long-term effects of NO2 on mortality. METHODS We conducted a systematic search for studies that were published up to February 2020 and performed a meta-analysis of all available epidemiologic studies evaluating the associations between long-term exposure to NO2 with all-cause, cardiovascular, and respiratory mortality. Overall pooled effect estimates as well as subgroup-specific pooled estimates (e.g. location, exposure assessment method, exposure metric, study population, age at recruitment, and key confounder adjustment) and 95% confidence intervals were calculated using random-effects models. Risk of bias assessment was accessed by following WHO global air quality guidelines. Publication bias was accessed by visually inspecting funnel plot and Egger's liner regression was used to test of asymmetry. RESULTS Our search initially retrieved 1349 unique studies, of which 34 studies met the inclusion criteria. The pooled hazard ratio (HR) for all-cause mortality was 1.06 (95%CI: 1.04-1.08, n = 28 studies, I2 = 98.6%) per 10 ppb increase in annual NO2 concentrations. The pooled HRs for cardiovascular and respiratory mortality per 10 ppb increment were 1.11 (95%CI: 1.07-1.16, n = 20 studies, I2 = 99.2%) and 1.05 (95%CI: 1.02-1.08, n = 17 studies, I2 = 94.6%), respectively. The sensitivity analysis pooling estimates from multi-pollutant models suggest an independent effect of NO2 on mortality. Funnel plots indicate that there is no evidence for publication bias in our study. CONCLUSION We provide robust epidemiological evidence that long-term exposure to NO2, a proxy for traffic-sourced air pollutants, is associated with a higher risk of all-cause, cardiovascular, and respiratory mortality that might be independent of other common air pollutants.
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Affiliation(s)
- Shiwen Huang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Haomin Li
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Mingrui Wang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Yaoyao Qian
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Kyle Steenland
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - William Michael Caudle
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Yang Liu
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Jeremy Sarnat
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | | | - Liuhua Shi
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
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Wang VA, James-Todd T, Hacker MR, O’Brien KE, Wylie BJ, Hauser R, Williams PL, Bellavia A, Quinn M, McElrath TF, Papatheodorou S. Ambient PM gross β-activity and glucose levels during pregnancy. Environ Health 2021; 20:70. [PMID: 34126994 PMCID: PMC8204493 DOI: 10.1186/s12940-021-00744-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 05/02/2021] [Indexed: 05/22/2023]
Abstract
BACKGROUND Exposure to ionizing radiation has been associated with insulin resistance and type 2 diabetes. In light of recent work showing an association between ambient particulate matter (PM) gross β-activity and gestational diabetes mellitus (GDM) among pregnant women, we examined pregnancy glucose levels in relation to PM gross β-activity to better understand this pathway. METHODS Our study included 103 participants receiving prenatal care at Beth Israel Deaconess Medical Center in Boston, MA. PM gross β-activity was obtained from US Environmental Protection Agency's RadNet program monitors, and blood glucose levels were obtained from the non-fasting glucose challenge test performed clinically as the first step of the 2-step GDM screening test. For each exposure window we examined (i.e., moving average same-day, one-week, first-trimester, and second-trimester PM gross β-activity), we fitted generalized additive models and adjusted for clinical characteristics, socio-demographic factors, temporal variables, and PM with an aerodynamic diameter ≤ 2.5 μm (PM2.5). Subgroup analyses by maternal age and by body mass index were also conducted. RESULTS An interquartile range increase in average PM gross β-activity during the second trimester of pregnancy was associated with an increase of 17.5 (95% CI: 0.8, 34.3) mg/dL in glucose concentration. Associations were stronger among younger and overweight/obese participants. Our findings also suggest that the highest compared to the lowest quartile of one-week exposure was associated with 17.0 (95% CI: - 4.0, 38.0) mg/dL higher glucose levels. No associations of glucose were observed with PM gross β-activity during same-day and first-trimester exposure windows. PM2.5 was not associated with glucose levels during any exposure window in our data. CONCLUSIONS Exposure to higher levels of ambient PM gross β-activity was associated with higher blood glucose levels in pregnant patients, with implications for how this novel environmental factor could impact pregnancy health.
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Affiliation(s)
- Veronica A. Wang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
| | - Tamarra James-Todd
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
| | - Michele R. Hacker
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115 USA
| | - Karen E. O’Brien
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115 USA
| | - Blair J. Wylie
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115 USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
| | - Paige L. Williams
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
| | - Andrea Bellavia
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
| | - Marlee Quinn
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
| | - Thomas F. McElrath
- Division of Maternal-Fetal Medicine, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA 02115 USA
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115 USA
- Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Kresge Bldg, Boston, MA 02115 USA
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Hage A, Dolan DP, Nasr VG, Castelo-Branco L, Motta-Calderon D, Ghandour H, Hage F, Papatheodorou S, Chu MWA. Safety of Direct Oral Anticoagulants Compared to Warfarin for Atrial Fibrillation after Cardiac Surgery: A Systematic Review and Meta-Analysis. Semin Thorac Cardiovasc Surg 2021; 34:947-957. [PMID: 34111554 DOI: 10.1053/j.semtcvs.2021.05.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 05/11/2021] [Indexed: 11/11/2022]
Abstract
The evidence for use of direct oral anticoagulants (DOACs) in the management of post-operative cardiac surgery atrial fibrillation is limited and mostly founded on clinical trials that excluded this patient population. We performed a systematic review and meta-analysis of clinical trials and observational studies to evaluate the hypothesis that DOACs are safe compared to warfarin for the anticoagulation of patients with post-operative cardiac surgery atrial fibrillation. We searched PubMed, EMBASE, Web of Science, clinicaltrials.gov, and the Cochrane Library for clinical trials and observational studies comparing DOAC with warfarin in patients ≥18 years old who had post-cardiac surgery atrial fibrillation. Primary outcomes included stroke, systemic embolization, bleeding, and mortality. We performed a random-effects meta-analysis of all outcomes. The meta-analysis for the primary outcomes showed significantly lower risk of stroke with DOAC use (6 studies, 7143 patients, RR 0.64; 95% CI 0.50-0.81, I2: 0.0%) compared to warfarin, a trend towards lower risk of systemic embolization (4 studies, 7289 patients, RR 0.64, 95% CI 0.41-1.01, I2: 31.99%) and similar risks of bleeding (14 studies, 10182 patients, RR 0.91; 95% CI 0.74-1.10, I2: 26.6%) and mortality (12 studies, 9843 patients, relative risk [RR] 1.01; 95% CI 0.74-1.37, I2: 26.5%). Current evidence suggests that DOACs, compared to warfarin, in the management of atrial fibrillation after cardiac surgery is associated with lower risk of stroke and a strong trend for lower risk of systemic embolization, and no evidence of increased risk for hospital readmission, bleeding and mortality.
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Affiliation(s)
- Ali Hage
- Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Division of Cardiac Surgery, Western University, London, Ontario, Canada
| | - Daniel P Dolan
- Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Viviane G Nasr
- Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Division of Cardiac Anesthesia, Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Luis Castelo-Branco
- Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Neuroscience, Neuromodulation Center, Spaulding Rehabilitation Hospital, Boston, Massachusetts
| | - Daniel Motta-Calderon
- Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Division of General Internal Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Hiba Ghandour
- Global Surgery, Harvard Medical School, Boston, Massachusetts
| | - Fadi Hage
- Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Division of Cardiac Surgery, Western University, London, Ontario, Canada
| | | | - Michael W A Chu
- Division of Cardiac Surgery, Western University, London, Ontario, Canada.
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Li L, Blomberg AJ, Stern RA, Kang CM, Papatheodorou S, Wei Y, Liu M, Peralta AA, Vieira CLZ, Koutrakis P. Predicting Monthly Community-Level Domestic Radon Concentrations in the Greater Boston Area with an Ensemble Learning Model. Environ Sci Technol 2021; 55:7157-7166. [PMID: 33939421 DOI: 10.1021/acs.est.0c08792] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Inhaling radon and its progeny is associated with adverse health outcomes. However, previous studies of the health effects of residential exposure to radon in the United States were commonly based on a county-level temporally invariant radon model that was developed using measurements collected in the mid- to late 1980s. We developed a machine learning model to predict monthly radon concentrations for each ZIP Code Tabulation Area (ZCTA) in the Greater Boston area based on 363,783 short-term measurements by Spruce Environmental Technologies, Inc., during the period 2005-2018. A two-stage ensemble-based model was developed to predict radon concentrations for all ZCTAs and months. Stage one included 12 base statistical models that independently predicted ZCTA-level radon concentrations based on geological, architectural, socioeconomic, and meteorological factors for each ZCTA. Stage two aggregated the predictions of these 12 base models using an ensemble learning method. The results of a 10-fold cross-validation showed that the stage-two model has a good prediction accuracy with a weighted R2 of 0.63 and root mean square error of 22.6 Bq/m3. The community-level time-varying predictions from our model have good predictive precision and accuracy and can be used in future prospective epidemiological studies in the Greater Boston area.
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Affiliation(s)
- Longxiang Li
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Boston, Massachusetts 02114, United States
| | - Annelise J Blomberg
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Boston, Massachusetts 02114, United States
| | - Rebecca A Stern
- Harvard John A. Paulson School of Engineering and Applied Sciences, 29 Oxford St., Cambridge, Massachusetts 02138, United States
| | - Choong-Min Kang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Boston, Massachusetts 02114, United States
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Yaguang Wei
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Boston, Massachusetts 02114, United States
| | - Man Liu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Boston, Massachusetts 02114, United States
| | - Adjani A Peralta
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Boston, Massachusetts 02114, United States
| | - Carolina L Z Vieira
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Boston, Massachusetts 02114, United States
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Boston, Massachusetts 02114, United States
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Papatheodorou S, Yao W, Vieira CLZ, Li L, Wylie BJ, Schwartz J, Koutrakis P. Residential radon exposure and hypertensive disorders of pregnancy in Massachusetts, USA: A cohort study. Environ Int 2021; 146:106285. [PMID: 33395935 DOI: 10.1016/j.envint.2020.106285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/30/2020] [Accepted: 11/15/2020] [Indexed: 05/13/2023]
Abstract
BACKGROUND Exposure to ionizing radiation has been associated with hypertension, but the relationship between residential radon exposure and hypertensive disorders of pregnancy (HDP) has not been examined. METHODS We used the Massachusetts Birth Registry of Vital Records from 2001 to 2015 including women with a singleton pregnancy without prior hypertension. The binary outcome (HDP) included gestational hypertension and pre-eclampsia cases and was assessed using birth certificate data. We obtained 141,665 basement radon measurements from Spruce Environmental Technologies, Inc. and modeled the monthly zip code basement radon level. We used a logistic regression model adjusted for sociodemographic covariates, maternal comorbidities, PM2.5, season, temperature, and relative humidity. We examined effect modification by maternal age, race, and maternal education as an indicator of socio-economic status. RESULTS Of 975,528 women, 3.7% (36,530) of them developed HDP. Zip code level radon ranged from 22 to 333 mBq/m3. An interquartile range (IQR) increase in zip code radon level throughout pregnancy was associated with a 15% increase in the odds of HDP (95% CI 13% to 18%). In women less than 20 years old, an IQR increase in zip code level radon was associated with 38% increase in the odds of HDP (95% CI 24% to 50%), while the effect was smaller in older women. There was no effect modification by maternal race or education. CONCLUSIONS In this cohort, higher levels of residential radon are associated with increased odds of HDP. After stratifying by age, this effect was stronger in participants younger than 20 years old. Since the burden of hypertensive disorders of pregnancy is increasing and affects women's future cardiovascular health, identification of modifiable risk factors is of great importance.
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Affiliation(s)
| | - Weiyu Yao
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Carolina L Z Vieira
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Longxiang Li
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Blair J Wylie
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Division of Maternal-Fetal Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Joel Schwartz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Satheeshkumar PS, Papatheodorou S, Sonis S. Enhanced oral hygiene interventions as a risk mitigation strategy for the prevention of non-ventilator-associated pneumonia: a systematic review and meta-analysis. Br Dent J 2020; 228:615-622. [PMID: 32332964 PMCID: PMC7223037 DOI: 10.1038/s41415-020-1452-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Background Healthcare-acquired pneumonias are a significant risk for nursing home and hospital patients. While oral care interventions (OCIs) have been found to be effective in reducing the risk of ventilator-associated pneumonia (VAP), their utility in mitigating non-ventilator-associated pneumonias (NVAP) remains unknown. We performed a structured meta-analysis of randomised and non-randomised clinical trials of enhanced oral hygiene procedures on NVAP.Methods We searched PubMed and Embase to include clinical trials (randomised and non-randomised), and observational (retrospective and prospective) and quasi-experimental studies examining the effect of any method of OCI on incidence of NVAP.Results After quality assessment and consensus agreement between authors, we synthesised six randomised clinical trials (3,891 patients), two non-randomised trials (2,993 patients), and separately assessed a retrospective trial (143 patients) and a quasi-experimental study (83 patients). Most studies, performed in nursing homes, did not show a significant association between OCI and NVAP prevention (RR random 0.89, 95% CI 0.64-1.25, p value 0.50). Likewise, the non-randomised trials failed to show an association between NVAP risk and OCI (RR random 1.42, 95% CI, 0.70-2.88, p value 0.32). However, in the subgroup analysis comparing dental professional involvement in care vs usual care, reduced NVAP risk was demonstrated (RR random 0.65, 95% CI 0.43-0.98, p value 0.03).Conclusions Study results suggest that professional dental care may confer some benefit among NVAP patients. The lack of consistent OCI protocols, data in hospitalised patients and robust randomised clinical trials do not allow definitive conclusions about the contribution of OCI in mitigating NVAP risk.
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Affiliation(s)
| | | | - Stephen Sonis
- Primary Endpoint Solutions, Watertown MA, USA; Brigham and Women's Hospital, Boston, MA, USA
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Kimura S, Ahn JB, Takahashi M, Kwon S, Papatheodorou S. Effectiveness of corticosteroids for post-extubation stridor and extubation failure in pediatric patients: a systematic review and meta-analysis. Ann Intensive Care 2020; 10:155. [PMID: 33206245 PMCID: PMC7672172 DOI: 10.1186/s13613-020-00773-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 11/07/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND While the results of previous meta-analyses have shown beneficial effects of corticosteroid therapy on post-extubation stridor and extubation failure in adults, these results might not be generalizable to children because of the differences in anatomy and structure. We aimed to determine the benefits of corticosteroids on those outcomes in pediatric populations. METHODS We searched PubMed, EMBASE, and reference lists of articles from inception until February 2019. Randomized controlled trials and observational studies on the efficacy of systemic corticosteroid administration given prior to elective extubation in mechanically ventilated pediatrics were eligible. Outcomes included post-extubation stridor indicating laryngeal edema and extubation failures. RESULTS A total of ten randomized controlled trials with 591 pediatric patients were included: seven of the ten studies for post-extubation stridor/suspected upper airway obstruction and nine of the ten studies for extubation failure. The estimate of pooled odds ratios (ORs) for post-extubation stridor/suspected upper airway obstruction was 0.40 (95% CI: 0.21-0.79). When analysis was restricted to trials that had explicit data for infants and explicit data for pediatric patients under 5 years old excluding infants, the estimates of pooled ORs were 0.53 (95% CI: 0.20-1.40) and 0.68 (95% CI: 0.38-1.22), respectively. For pediatric patients who received corticosteroids, there was a 0.37-fold lower odds of extubation failure than that in pediatric patients who did not receive corticosteroids (OR, 0.37; 95% CI, 0.22-0.61). While three observational studies were included in this review, their estimates have a potential for bias and we did not perform a meta-analysis. CONCLUSIONS Despite a relatively small sample size in each randomized controlled trial and wide ranges of ages and steroid administration regimens, our results suggest that the use of corticosteroids for prevention of post-extubation stridor and extubation failure could be considered to be acceptable in pediatric patients.
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Affiliation(s)
- Satoshi Kimura
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA. .,Department of Pediatric Intensive Care Unit, The Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC, 3052, Australia.
| | - JiYoon B Ahn
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA
| | - Mai Takahashi
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA.,Department of Internal Medicine, Mount Sinai Beth Israel, 317 E 17th St, New York, NY, 10003, USA
| | - Sohee Kwon
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA
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Davies GA, Strader C, Chibbar R, Papatheodorou S, Dmytriw AA. The relationship between physical activity and lymphoma: a systematic review and meta analysis. BMC Cancer 2020; 20:962. [PMID: 33023529 PMCID: PMC7539461 DOI: 10.1186/s12885-020-07431-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/16/2020] [Indexed: 01/08/2023] Open
Abstract
Background The literature suggests an increased risk between anthropometrics including higher body mass index and lymphoma incidence; however, the association with physical activity remains unclear. A systematic review/meta-analysis was therefore performed to examine this association with physical activity (total, recreational or occupational). Methods PubMed, Web of Science and Embase were reviewed from inception to October 2019 identifying relevant observational studies. Non-Hodgkin lymphoma (NHL) including subtypes diffuse large B cell lymphoma, follicular lymphoma and chronic lymphocytic leukemia/small lymphocytic lymphoma, and Hodgkin lymphoma (HL) were analyzed. Included studies reported activity, lymphoma cases, effect size and variability measures, and were restricted to human subjects of any age. Data was pooled generating summary relative risk (RR) estimates with 95% confidence intervals (CI) using random-effects models with primary outcome of histologically confirmed incident lymphoma. Results One thousand four hundred studies were initially identified with 18 studies (nine cohort, nine case-control) included in final analysis. Comparing highest vs. lowest activity categories was protective for all lymphoma (RR 0.89, 95%CI 0.81–0.98). Sensitivity analysis demonstrated effect persistence within case-control studies (RR 0.82, 95% CI 0.71–0.96), but not cohort studies (RR 0.95, 95%CI 0.84–1.07). Borderline protective effect was seen for NHL (RR 0.92, 95%CI 0.84–1.00), but not HL (RR 0.72, 95%CI 0.50–1.04). Analysis by NHL subtype or gender showed no effect. Dose response analysis demonstrated a protective effect (p = 0.034) with a 1% risk reduction per 3 MET hours/week (RR 0.99, 95%CI 0.98–1.00). Conclusions Physical activity may have a protective effect against lymphoma development; further studies are required to generate recommendations regarding health policy. Trial registration This study was registered prospectively at PROSPERO: CRD42020156242.
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Affiliation(s)
- Gwynivere A Davies
- Department of Oncology, Juravinski Cancer Centre- Hamilton Health Sciences, Hamilton, ON, Canada.
| | - Christopher Strader
- Department of Surgery, University of Massachusetts Medical Center, Worchester, MA, Canada
| | - Richa Chibbar
- Digestive Disease Center, Beth Israel Lahey Health, Harvard Medical School, Boston, MA, USA
| | | | - Adam A Dmytriw
- Department of Medical Imaging, University of Toronto, Toronto, ON, Canada
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Qiu X, Fong KC, Shi L, Papatheodorou S, Di Q, Just A, Kosheleva A, Messerlian C, Schwartz JD. Prenatal exposure to particulate air pollution and gestational age at delivery in Massachusetts neonates 2001-2015: A perspective of causal modeling and health disparities. Environ Epidemiol 2020; 4:e113. [PMID: 33154990 PMCID: PMC7595249 DOI: 10.1097/ee9.0000000000000113] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/23/2020] [Indexed: 11/26/2022] Open
Abstract
There is a lack of evidence on causal effects of air pollution on gestational age (GA) at delivery. METHODS Inverse probability weighting (IPW) quantile regression was applied to derive causal marginal population-level GA reduction for GA percentiles associated with increased ambient particulate matter with diameter <2.5 μm (PM2.5) levels at maternal residential address for each trimester and the month preceding delivery using Massachusetts birth registry 2001 to 2015. Stratified analyses were conducted for neonatal sex, maternal age/race/education, and extreme ambient temperature conditions. RESULTS For neonates at 2.5th, 10th, 25th, 50th, 75th, and 97.5th percentiles of GA at delivery, we estimated an adjusted GA reduction of 4.2 days (95% confidence interval [CI] = 3.4, 5.0), 1.9 days (1.6, 2.1), 1.2 days (1.0, 1.4), 0.82 days (0.72, 0.92), 0.74 days (0.54, 0.94), and 0.54 days (0.15, 0.93) for each 5 μg/m3 increment in third trimester average PM2.5 levels. Final gestational month average exposure yielded a similar effect with greater magnitude. Male neonates and neonates of younger (younger than 35 years) and African American mothers as well as with high/low extreme temperature exposure in third trimester were more affected. Estimates were consistently higher at lower GA percentiles, indicating preterm/early-term births being more affected. Low-exposure analyses yielded similar results, restricting to areas with PM2.5 levels under US ambient annual standard of 12 μg/m3. CONCLUSIONS Prenatal exposure to PM2.5 in late pregnancy reduced GA at delivery among Massachusetts neonates, especially among preterm/early-term births, male neonates, and neonates of younger and African American mothers. Exposure to extremely high/low temperature amplifies the effect of PM2.5 on GA.
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Affiliation(s)
- Xinye Qiu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Kelvin C Fong
- School of the Environment, Yale University, New Haven, Connecticut
| | - Liuhua Shi
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Qian Di
- School of Medicine, Tsinghua University, Beijing, China
| | - Allan Just
- Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Anna Kosheleva
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Carmen Messerlian
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Joel D Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
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Papatheodorou S, Gold DR, Blomberg AJ, Hacker M, Wylie BJ, Requia WJ, Oken E, Fleisch AF, Schwartz JD, Koutrakis P. Ambient particle radioactivity and gestational diabetes: A cohort study of more than 1 million pregnant women in Massachusetts, USA. Sci Total Environ 2020; 733:139340. [PMID: 32464573 PMCID: PMC7472683 DOI: 10.1016/j.scitotenv.2020.139340] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 05/26/2023]
Abstract
BACKGROUND Exposure to ionizing radiation increases the risk of chronic metabolic disorders such as insulin resistance and type 2 diabetes. Internal ionizing radiation from inhaled radioactive aerosol may contribute to the associations between fine particulate matter (PM2.5) and gestational diabetes mellitus (GDM). METHODS We used the Massachusetts Registry of Vital Records to study 1,061,937 pregnant women from 2001 to 2015 with a singleton pregnancy without pre-existing diabetes. Gross β activity measured by seven monitors of the U.S. Environmental Protection Agency's RadNet monitoring network was utilized to represent ambient particle radioactivity (PR). We obtained GDM status from birth certificates and used logistic regression analyses adjusted for socio-demographics, maternal comorbidities, PM2.5, temperature and relative humidity. We also examined effect modification by smoking habits. RESULTS Ambient particle radioactivity exposure during first and second trimester of pregnancy was associated with higher odds of GDM (OR: 1.18 (95% CI 1.10 to 1.22). Controlling for PM2.5 did not substantially change the effects of PR on GDM. In women that reported being former or current smokers, the association between PR and GDM was null. In the full cohort, the overall effect of PM2.5 on GDM without adjusting for PR was not significant. CONCLUSION This is the first population-based study to examine the association between particle radioactivity and gestational diabetes mellitus - one of the most common pregnancy-related diseases with lifelong effects for the mother and the fetus. This finding has important public health policy implications because it enhances our understanding about the toxicity of PR, a modifiable risk factor, which to date, has been considered only as an indoor and occupational air quality risk.
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Affiliation(s)
| | - Diane R Gold
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital Harvard Medical School, Boston, MA 02115, USA
| | - Annelise J Blomberg
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Michele Hacker
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Blair J Wylie
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Weeberb J Requia
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Emily Oken
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA; Department of Nutrition, Harvard School of Public Health, Boston, MA, USA
| | - Abby F Fleisch
- Pediatric Endocrinology and Diabetes, Maine Medical Center, Portland, ME, USA; Center for Outcomes Research and Evaluation, Maine Medical Center Research Institute, Portland, ME, USA
| | - Joel D Schwartz
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Pande A, Lamba N, Mammi M, Gebrehiwet P, Trenary A, Doucette J, Papatheodorou S, Bunevicius A, Smith TR, Mekary RA. Endoscopic third ventriculostomy versus ventriculoperitoneal shunt in pediatric and adult population: a systematic review and meta-analysis. Neurosurg Rev 2020; 44:1227-1241. [PMID: 32476100 DOI: 10.1007/s10143-020-01320-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/29/2020] [Accepted: 05/18/2020] [Indexed: 11/28/2022]
Abstract
Treatment options for hydrocephalus include endoscopic third ventriculostomy (ETV) and ventriculoperitoneal shunt (VPS). Some ambiguity remains regarding indications, safety, and efficacy for these procedures in different clinical scenarios. The objective of the present study was to pool the available evidence to compare outcomes among patients with hydrocephalus undergoing ETV versus VPS. A systematic search of the literature was conducted via PubMed, EMBASE, and Cochrane Library through 11/29/2018 to identify studies evaluating failure and complication rates, following ETV or VPS. Pooled effect estimates were calculated using random effects. Heterogeneity was assessed by the Cochrane Q test and the I2 value. Heterogeneity sources were explored through subgroup analyses and meta-regression. Twenty-three studies (five randomized control trials (RCTs) and 18 observational studies) were meta-analyzed. Comparing ETV to VPS, failure rate was not statistically significantly different with a pooled relative risk (RR) of 1.48, 95%CI (0.85, 2.59) for RCTs and 1.17 (0.89, 1.53) for cohort studies; P-interaction: 0.44. Complication rates were not statistically significantly different between ETV and VPS in RCTs (RR: 1.34, 95%CI: 0.50, 3.59) but were statistically significant for prospective cohort studies (RR: 0.47, 95%CI: 0.30, 0.78); P-interaction: 0.07. Length of hospital stay was no different, when comparing ETV and VPS. These results remained unchanged when stratifying by intervention type and when regressing on age when possible. No significant differences in failure rate were observed between ETV and VPS. ETV was found to have lower complication rates than VPS in prospective cohort studies but not in RCTs. Further research is needed to identify the specific patient populations who may be better suited for one intervention versus another.
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Affiliation(s)
- Apurva Pande
- School of Pharmacy, MCPHS University, Boston, MA, 02115, USA
| | - Nayan Lamba
- Computational Neuroscience Outcomes Center, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Marco Mammi
- Computational Neuroscience Outcomes Center, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Neurosurgery Unit, Department of Neurosciences, University of Turin, Turin, Italy
| | | | - Alyssa Trenary
- School of Pharmacy, MCPHS University, Boston, MA, 02115, USA
| | - Joanne Doucette
- School of Pharmacy, MCPHS University, Boston, MA, 02115, USA
| | | | - Adomas Bunevicius
- Computational Neuroscience Outcomes Center, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Timothy R Smith
- Computational Neuroscience Outcomes Center, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Rania A Mekary
- School of Pharmacy, MCPHS University, Boston, MA, 02115, USA. .,Computational Neuroscience Outcomes Center, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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Achilleos S, Mouzourides P, Kalivitis N, Katra I, Kloog I, Kouis P, Middleton N, Mihalopoulos N, Neophytou M, Panayiotou A, Papatheodorou S, Savvides C, Tymvios F, Vasiliadou E, Yiallouros P, Koutrakis P. Spatio-temporal variability of desert dust storms in Eastern Mediterranean (Crete, Cyprus, Israel) between 2006 and 2017 using a uniform methodology. Sci Total Environ 2020; 714:136693. [PMID: 31978777 DOI: 10.1016/j.scitotenv.2020.136693] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/24/2019] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
The characteristics of desert dust storms (DDS) have been shown to change in response to climate change and land use. There is limited information on the frequency and intensity of DDS over the last decade at a regional scale in the Eastern Mediterranean. An algorithm based on daily ground measurements (PM10, particulate matter ≤10 μm), satellite products (dust aerosol optical depth) and meteorological parameters, was used to identify dust intrusions for three Eastern Mediterranean locations (Crete-Greece, Cyprus, and Israel) between 2006 and 2017. Days with 24-hr average PM10 concentration above ~30 μg/m3 were found to be a significant indicator of DDS for the background sites of Cyprus and Crete. Higher thresholds were found for Israel depending on the season (fall and spring: PM10 > 70 μg/m3, winter and summer: PM10 > 90 μg/m3). We observed a high variability in the frequency and intensity of DDS during the last decade, characterized by a steady trend with sporadic peaks. The years with the highest DDS frequency were not necessarily the years with the most intense episodes. Specifically, the highest dust frequency was observed in 2010 at all three locations, but the highest annual median dust-PM10 level was observed in 2012 in Crete (55.8 μg/m3) and Israel (137.4 μg/m3), and in 2010 in Cyprus (45.3 μg/m3). Crete and Cyprus experienced the same most intense event in 2006, with 24 h-PM10 average of 705.7 μg/m3 and 1254.6 μg/m3, respectively, which originated from Sahara desert. The highest 24 h-PM10 average concentration for Israel was observed in 2010 (3210.9 μg/m3) during a three-day Saharan dust episode. However, a sub-analysis for Cyprus (years 2000-2017) suggests a change in DDS seasonality pattern, intensity, and desert of origin. For more robust conclusions on DDS trends in relation to climate change, future work needs to study data over several decades from different locations.
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Affiliation(s)
- Souzana Achilleos
- Cyprus International Institute for Environmental and Public Health, Cyprus University of Technology, Cyprus.
| | - Petros Mouzourides
- Department of Civil and Environmental Engineering, University of Cyprus, Cyprus
| | - Nikos Kalivitis
- Department of Chemistry, University of Crete, Greece; National Observatory of Athens, Greece
| | - Itzhak Katra
- Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Israel
| | - Itai Kloog
- Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Israel
| | | | - Nicos Middleton
- Department of Nursing, Cyprus University of Technology, Cyprus
| | - Nikos Mihalopoulos
- Department of Chemistry, University of Crete, Greece; National Observatory of Athens, Greece
| | - Marina Neophytou
- Department of Civil and Environmental Engineering, University of Cyprus, Cyprus
| | - Andrie Panayiotou
- Cyprus International Institute for Environmental and Public Health, Cyprus University of Technology, Cyprus
| | - Stefania Papatheodorou
- Cyprus International Institute for Environmental and Public Health, Cyprus University of Technology, Cyprus; Department of Epidemiology, Harvard T.H. Chan School of Public Health, USA
| | - Chrysanthos Savvides
- Department of Labour Inspection, Ministry of Labour, Welfare and Social Insurance, Cyprus
| | - Filippos Tymvios
- Cyprus Department of Meteorology, Cyprus; The Cyprus Institute, Cyprus
| | - Emily Vasiliadou
- Department of Labour Inspection, Ministry of Labour, Welfare and Social Insurance, Cyprus
| | | | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, USA
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48
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Chatzakis C, Papatheodorou S, Sarafidis K, Dinas K, Makrydimas G, Sotiriadis A. Effect on perinatal outcome of prophylactic antibiotics in preterm prelabor rupture of membranes: network meta-analysis of randomized controlled trials. Ultrasound Obstet Gynecol 2020; 55:20-31. [PMID: 31633844 DOI: 10.1002/uog.21884] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/22/2019] [Accepted: 09/24/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES Prophylactic antibiotics are recommended routinely for preterm prelabor rupture of membranes (PPROM), but there is an abundance of potential treatments and a paucity of comparative information. The aims of this network meta-analysis were to compare the efficiency of different antibiotic regimens on perinatal outcomes and to assess the quality of the current evidence. METHODS This was a network meta-analysis of randomized controlled trials comparing prophylactic antibiotics, or regimens of antibiotics, with each other or with placebo/no treatment, in women with PPROM. MEDLINE, Scopus, Cochrane Central Register of Controlled Trials, US Registry of Clinical Trials ( www.ClinicalTrials.gov) and gray literature sources were searched. The primary outcomes were neonatal mortality and chorioamnionitis; secondary outcomes included other measures of perinatal morbidity. Relative effect sizes were estimated using risk ratios (RR) and the relative ranking of the interventions was obtained using cumulative ranking curves. The quality of evidence for the primary outcomes was assessed according to GRADE guidelines, adapted for network meta-analysis. RESULTS The analysis included 20 studies (7169 participants randomized to 15 therapeutic regimens). For the outcome of chorioamnionitis, clindamycin + gentamycin (network RR, 0.19 (95% CI, 0.05-0.83)), penicillin (RR, 0.31 (95% CI, 0.16-0.6)), ampicillin/sulbactam + amoxicillin/clavulanic acid (RR, 0.32 (95% CI, 0.12-0.92)), ampicillin (RR, 0.52 (95% CI, 0.34-0.81)) and erythromycin + ampicillin + amoxicillin (RR, 0.71 (95% CI, 0.55-0.92)) were superior to placebo/no treatment. Erythromycin was the only effective drug for neonatal sepsis (RR, 0.74 (95% CI, 0.56-0.97)). Clindamycin + gentamycin (RR, 0.32 (95% CI, 0.11-0.89)) and erythromycin + ampicillin + amoxicillin (RR, 0.83 (95% CI, 0.69-0.99)) were the only effective regimens for respiratory distress syndrome, whereas ampicillin (RR, 0.42 (95% CI, 0.20-0.92)) and penicillin (RR, 0.49 (95% CI, 0.25-0.96)) were effective in reducing the rates of Grade-3/4 intraventricular hemorrhage. None of the antibiotics appeared significantly more effective than placebo/no treatment in reducing the rates of neonatal death, perinatal death and necrotizing enterocolitis. No network RR could be estimated for neonatal intensive care unit admission. The overall quality of the evidence, according to GRADE guidelines, was moderate to very low, depending on the outcome and comparison. CONCLUSIONS Several antibiotics appear to be more effective than placebo/no treatment in reducing the rate of chorioamnionitis after PPROM. However, none of them is clearly and consistently superior compared to other antibiotics, and most are not superior to placebo/no treatment for other outcomes. The overall quality of the evidence is low and needs to be updated, as microbial resistance may have emerged for some antibiotics, while others are underrepresented in the existing evidence. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- C Chatzakis
- 2nd Department of Obstetrics and Gynaecology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - S Papatheodorou
- Harvard TH Chan School of Public Health, Department of Epidemiology, Boston, MA, USA
| | - K Sarafidis
- 1st Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - K Dinas
- 2nd Department of Obstetrics and Gynaecology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - G Makrydimas
- Department of Obstetrics and Gynaecology, University of Ioannina Medical School, Ioannina, Greece
| | - A Sotiriadis
- 2nd Department of Obstetrics and Gynaecology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
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49
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Ma Y, Song A, Viswanathan A, Blacker D, Vernooij MW, Hofman A, Papatheodorou S. Blood Pressure Variability and Cerebral Small Vessel Disease: A Systematic Review and Meta-Analysis of Population-Based Cohorts. Stroke 2019; 51:82-89. [PMID: 31771460 DOI: 10.1161/strokeaha.119.026739] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Background and Purpose- Blood pressure (BP) variability may increase the risk of stroke and dementia. It remains inconclusive whether BP variability is associated with cerebral small vessel disease, a common and potentially devastating subclinical disease that contributes significantly to both stroke and dementia. Methods- A systematic review and meta-analysis of prospective cohort studies that examined the association between BP variability and the presence or progression of established markers of cerebral small vessel disease, including white matter hyperintensities, lacunes, and microbleeds on magnetic resonance imaging. We searched MEDLINE, EMBASE, and Web of Science. Ten studies met the criteria for qualitative synthesis and 7 could be included in the meta-analysis. Data were synthetized using random-effect models. Results- These studies included a total of 2796 individuals aged 74 (mean) ±4 (SD) years, with a median follow-up of 4.0 years. A one SD increase in systolic BP variability was associated with increased odds of the presence or progression of white matter hyperintensities (odds ratio, 1.26 [95% CI, 1.06-1.50]). The association of systolic BP variability with the presence of lacunes (odds ratio, 0.93 [95% CI, 0.74-1.16]) and the presence of microbleeds (odds ratio, 1.13 [95% CI, 0.89-1.44]) were not statistically significant. Conclusions- A larger BP variability may be associated with a higher risk of having a higher burden of white matter hyperintensities. Targeting large BP variability has the potential to prevent cerebral small vessel disease and thereby reducing the risk of stroke and dementia. The potential issue of reverse causation and the heterogeneity in the assessment of cerebral small vessel disease markers should be better addressed in future studies.
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Affiliation(s)
- Yuan Ma
- From the Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (Y.M., D.B., A.H., S.P.)
| | - Alex Song
- Department of Biology, Brown University, Providence, RI (A.S.)
| | - Anand Viswanathan
- Department of Neurology, Massachusetts General Hospital Stroke Research Center, Harvard Medical School, Boston (A.V.)
| | - Deborah Blacker
- From the Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (Y.M., D.B., A.H., S.P.).,Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston (D.B.)
| | - Meike W Vernooij
- Department of Epidemiology (M.W.V., A.H.), Erasmus MC University Medical Center, Rotterdam, the Netherlands.,Department of Radiology and Nuclear Medicine (M.W.V.), Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Albert Hofman
- From the Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (Y.M., D.B., A.H., S.P.).,Department of Epidemiology (M.W.V., A.H.), Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Stefania Papatheodorou
- From the Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (Y.M., D.B., A.H., S.P.)
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50
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Smith C, Lamba N, Ou Z, Vo QA, Araujo-Lama L, Lim S, Joshi D, Doucette J, Papatheodorou S, Tafel I, Aglio LS, Smith TR, Mekary RA, Zaidi H. The prevalence of complications associated with lumbar and thoracic spinal deformity surgery in the elderly population: a meta-analysis. J Spine Surg 2019; 5:223-235. [PMID: 31380476 DOI: 10.21037/jss.2019.03.06] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Background The prevalence of spinal deformities increases with age, affecting between 30% and 68% of the elderly population (ages ≥65). The reported prevalence of complications associated with surgery for spinal deformities in this population ranges between 37% and 71%. Given the wide range of reported complication rates, the decision to perform surgery remains controversial. Methods A comprehensive search was conducted using PubMed, Embase, and Cochrane to identify studies reporting complications for spinal deformity surgery in the elderly population. Pooled prevalence estimates for individual complication types were calculated using the random-effects model. Results Of 5,586 articles, 14 met inclusion criteria. Fourteen complication types were reported, with at least 2 studies for each complication with the following pooled prevalence: reoperation (prevalence 19%; 95% CI, 9-36%; 107 patients); hardware failure (11%; 95% CI, 5-25%; 52 patients); infection (7%; 95% CI, 4-12%; 262 patients); pseudarthrosis (6%; 95% CI, 3-12%; 149 patients); radiculopathy (6%; 95% CI, 1-33%; 116 patients); cardiovascular event (5%; 95% CI, 1-32%; 121 patients); neurological deficit (5%; 95% CI, 2-15%; 248 patients); deep vein thrombosis (3%; 95% CI, 1-7%; 230 patients); pulmonary embolism (3%; 95% CI, 1-7%; 210 patients); pneumonia (3%; 95% CI, 1-11%; 210 patients); cerebrovascular or stroke event (2%; 95% CI, 0-9%; 85 patients); death (2%; 95% CI, 1-9%; 113 patients); myocardial infarction (2%; 95% CI, 1-6%; 210 patients); and postoperative hemorrhage (1%; 95% CI, 0-10%; 85 patients). Conclusions Most complication types following spinal deformity surgery in the elderly had prevalence point estimates of <6%, while all were at least ≤19%. Additional studies are needed to further explore composite prevalence estimates and prevalence associated with traditional surgical approaches as compared to minimally-invasive procedures in the elderly.
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Affiliation(s)
- Colleen Smith
- Department of Pharmaceutical Business and Administrative Sciences, School of Pharmacy, MCPHS, Boston, MA, USA
| | - Nayan Lamba
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Zhonghui Ou
- Department of Pharmaceutical Business and Administrative Sciences, School of Pharmacy, MCPHS, Boston, MA, USA
| | - Quynh-Anh Vo
- Department of Pharmaceutical Business and Administrative Sciences, School of Pharmacy, MCPHS, Boston, MA, USA
| | - Lita Araujo-Lama
- Department of Pharmaceutical Business and Administrative Sciences, School of Pharmacy, MCPHS, Boston, MA, USA
| | - Sanghee Lim
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Boston University School of Medicine, Boston, MA, USA
| | - Dhaivat Joshi
- Department of Pharmaceutical Business and Administrative Sciences, School of Pharmacy, MCPHS, Boston, MA, USA
| | - Joanne Doucette
- Department of Pharmaceutical Business and Administrative Sciences, School of Pharmacy, MCPHS, Boston, MA, USA
| | | | - Ian Tafel
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Linda S Aglio
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Timothy R Smith
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Rania A Mekary
- Department of Pharmaceutical Business and Administrative Sciences, School of Pharmacy, MCPHS, Boston, MA, USA.,Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Hasan Zaidi
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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