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Bergeron J, Avraam D, Calas L, Fraser W, Harris JR, Heude B, Mandhane P, Moraes TJ, Muckle G, Nader J, Séguin JR, Simons E, Subbarao P, Swertz MA, Tough S, Turvey SE, Fortier I, Rod NH, Andersen AMN. Stress and anxiety during pregnancy and length of gestation: a federated study using data from five Canadian and European birth cohorts. Eur J Epidemiol 2024; 39:773-783. [PMID: 38805076 PMCID: PMC11344005 DOI: 10.1007/s10654-024-01126-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 04/14/2024] [Indexed: 05/29/2024]
Abstract
While its etiology is not fully elucidated, preterm birth represents a major public health concern as it is the leading cause of child mortality and morbidity. Stress is one of the most common perinatal conditions and may increase the risk of preterm birth. In this paper we aimed to investigate the association of maternal perceived stress and anxiety with length of gestation. We used harmonized data from five birth cohorts from Canada, France, and Norway. A total of 5297 pregnancies of singletons were included in the analysis of perceived stress and gestational duration, and 55,775 pregnancies for anxiety. Federated analyses were performed through the DataSHIELD platform using Cox regression models within intervals of gestational age. The models were fit for each cohort separately, and the cohort-specific results were combined using random effects study-level meta-analysis. Moderate and high levels of perceived stress during pregnancy were associated with a shorter length of gestation in the very/moderately preterm interval [moderate: hazard ratio (HR) 1.92 (95%CI 0.83, 4.48); high: 2.04 (95%CI 0.77, 5.37)], albeit not statistically significant. No association was found for the other intervals. Anxiety was associated with gestational duration in the very/moderately preterm interval [1.66 (95%CI 1.32, 2.08)], and in the early term interval [1.15 (95%CI 1.08, 1.23)]. Our findings suggest that perceived stress and anxiety are associated with an increased risk of earlier birth, but only in the earliest gestational ages. We also found an association in the early term period for anxiety, but the result was only driven by the largest cohort, which collected information the latest in pregnancy. This raised a potential issue of reverse causality as anxiety later in pregnancy could be due to concerns about early signs of a possible preterm birth.
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Affiliation(s)
- Julie Bergeron
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark.
- Research Institute of the McGill University Health Center, Montreal, Canada.
| | - Demetris Avraam
- Population Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, UK
| | - Lucinda Calas
- Centre for Research in Epidemiology and Statistics, INSERM, Paris, France
| | - William Fraser
- Department of Obstetrics and Gynecology, Université de Sherbrooke, Sherbrook, Canada
| | - Jennifer R Harris
- Centre for Fertility and Health, The Norwegian Institute of Public Health, Oslo, Norway
| | - Barbara Heude
- Centre for Research in Epidemiology and Statistics, INSERM, Paris, France
| | - Piush Mandhane
- Department of Pediatrics, University of Alberta, Edmonton, Canada
| | - Theo J Moraes
- Department of Paediatrics, Hospital for Sick Children and University of Toronto, Toronto, Canada
| | - Gina Muckle
- School of Psychology, Université Laval, Quebec, Canada
| | - Johanna Nader
- Centre for Fertility and Health, The Norwegian Institute of Public Health, Oslo, Norway
| | - Jean R Séguin
- Department of Psychiatry and Addictology, Université de Montréal and CHU Ste-Justine Research Center, Montreal, Canada
| | - Elinor Simons
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Canada
| | - Padmaja Subbarao
- Department of Paediatrics, Hospital for Sick Children and University of Toronto, Toronto, Canada
| | - Morris A Swertz
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Suzanne Tough
- Department of Paediatrics, University of Calgary, Calgary, Canada
| | - Stuart E Turvey
- Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, Canada
| | - Isabel Fortier
- Research Institute of the McGill University Health Center, Montreal, Canada
| | - Naja Hulvej Rod
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
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Wiingreen R, Sørensen KK, Greisen G, Løkkegaard ECL, Torp-Pedersen C, Andersen MP, Mølholm Hansen B. Poor socioeconomic outcomes: Completion of the final examination after lower secondary education mitigates risks associated with gestational age. Acta Paediatr 2024. [PMID: 38894624 DOI: 10.1111/apa.17325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/21/2024]
Abstract
AIM To investigate the influence of gestational age (GA) on the association between completion of the final examination after 10-11 years of basic education and education, financial independence and income in early adulthood. METHODS A nationwide register-based study including individuals born in Denmark between 1990 and 1992. Completion of the examination was evaluated at age 18 and education, financial independence and income at age 28. RESULTS Of 165 683 individuals included, 15.7%, 10.8% and 5.5% had low educational level, were not financially independent and had low income. For those who completed the examination odds ratio (OR) ranged from 1.03 at GA = 32-36 weeks to 1.25 at ≤27 weeks for low education, from 1.10 to 0.91 for not being financial independent and from 1.06 to 1.48 for low income. For those who did not complete the examination, OR increased from 7.55 at ≥37 weeks to 15.03 at ≤27 weeks for low education and from 4.68 to 15.31 for not being financial independent. For low income, OR was 2.57 and independent of GA. CONCLUSION For individuals who completed the examination, the odds of poor socioeconomic outcomes were independent of GA. Individuals who did not complete the examination had increased odds of poor socioeconomic outcomes, particularly as GA decreased.
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Affiliation(s)
- Rikke Wiingreen
- Department of Paediatrics, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
- Department of Neonatology, Juliane Marie Center, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Kathrine Kold Sørensen
- Department of Cardiology, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Gorm Greisen
- Department of Neonatology, Juliane Marie Center, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ellen C L Løkkegaard
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Obstetrics and Gynaecology, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Porsborg Andersen
- Department of Cardiology, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
- The Prehospital Center, Næstved, Denmark
| | - Bo Mølholm Hansen
- Department of Paediatrics, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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3
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Greiber IK, Viuff JH, Karlsen MA, Lidegaard Ø, Mikkelsen AP, Hjortshøj CS, Storgaard L, Mellemkjær L. School performance and educational achievement in children exposed to maternal cancer in utero. J Epidemiol Community Health 2024; 78:395-401. [PMID: 38589221 DOI: 10.1136/jech-2023-221753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/26/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND In utero exposure to maternal cancer and cancer treatment might influence the child's cognitive development. This study investigated if exposure to maternal cancer during fetal life impacted school performance and educational achievement as adults. METHODS This nationwide retrospective cohort study identified all live-born children in Denmark between January 1978 and December 2013. Exposure was defined as maternal cancer diagnosis during pregnancy. Four partly overlapping birth cohorts were constructed depending on the outcome of interest: (1) receiving special educational support for birth years 2001-2013; (2) grade point average (GPA) at the final exams after 10th grade for 1986-2003; (3) educational achievement at 20 years for 1978-1998; and (4) education at 30 years for 1978-1988. Logistic and linear models were adjusted for birth year, maternal age, maternal education and maternal death. RESULTS The estimated probability of receiving special educational support was similar in the exposed group and the reference (adjusted OR 0.96; 95% CI 0.46 to 1.77, non-significant). The GPA did not statistically differ (0.13 grade points; 95% CI -0.18 to 0.45, non-significant). The achieved educational levels were similar for the exposed group and the reference at 20 years, with an adjusted OR of 1.07 (95% CI 0.82 to 1.40) for low versus medium educational level, and at 30 years with an adjusted OR of 0.73 (95% CI 0.35 to 1.50) for low versus high educational level and of 1.07 (95% CI 0.66 to 1.72) for medium versus high educational level. CONCLUSION Our findings did not indicate poorer performance in compulsory school nor impairment of adult educational achievement after exposure to maternal cancer in utero.
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Affiliation(s)
- Iben Katinka Greiber
- Department of Gynecology and Obstetrics, Rigshospitalet, Juliane Marie Centre, Kobenhavn, Denmark
- Danish Cancer Society Research Center, Kobenhavn, Denmark
| | | | - Mona Aarenstrup Karlsen
- Department of Gynecology and Obstetrics, Rigshospitalet, Juliane Marie Centre, Kobenhavn, Denmark
| | - Øjvind Lidegaard
- Department of Gynecology and Obstetrics, Rigshospitalet, Juliane Marie Centre, Kobenhavn, Denmark
| | | | | | - Lone Storgaard
- Department of Gynecology and Obstetrics, Rigshospitalet, Juliane Marie Centre, Kobenhavn, Denmark
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McKee KS, Tang X, Tung I, Wu G, Alshawabkeh AN, Arizaga JA, Bastain TM, Brennan PA, Breton CV, Camargo CA, Cioffi CC, Cordero JF, Dabelea D, Deutsch AR, Duarte CS, Dunlop AL, Elliott AJ, Ferrara A, Karagas MR, Lester B, McEvoy CT, Meeker J, Neiderhiser JM, Herbstman J, Trasande L, O’Connor TG, Hipwell AE, Comstock SS. Perinatal Outcomes during versus Prior to the COVID-19 Pandemic and the Role of Maternal Depression and Perceived Stress: A Report from the ECHO Program. Am J Perinatol 2024; 41:e1404-e1420. [PMID: 36781160 PMCID: PMC11195909 DOI: 10.1055/a-2033-5610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
OBJECTIVE We sought to evaluate the impact of the coronavirus disease 2019 (COVID-19) pandemic on perinatal outcomes while accounting for maternal depression or perceived stress and to describe COVID-specific stressors, including changes in prenatal care, across specific time periods of the pandemic. STUDY DESIGN Data of dyads from 41 cohorts from the National Institutes of Health Environmental influences on Child Health Outcomes Program (N = 2,983) were used to compare birth outcomes before and during the pandemic (n = 2,355), and a partially overlapping sample (n = 1,490) responded to a COVID-19 questionnaire. Psychosocial stress was defined using prenatal screening for depression and perceived stress. Propensity-score matching and general estimating equations with robust variance estimation were used to estimate the pandemic's effect on birth outcomes. RESULTS Symptoms of depression and perceived stress during pregnancy were similar prior to and during the pandemic, with nearly 40% of participants reporting mild to severe stress, and 24% reporting mild depression to severe depression. Gestations were shorter during the pandemic (B = - 0.33 weeks, p = 0.025), and depression was significantly associated with shortened gestation (B = - 0.02 weeks, p = 0.015) after adjustment. Birth weights were similar (B = - 28.14 g, p = 0.568), but infants born during the pandemic had slightly larger birth weights for gestational age at delivery than those born before the pandemic (B = 0.15 z-score units, p = 0.041). More women who gave birth early in the pandemic reported being moderately or extremely distressed about changes to their prenatal care and delivery (45%) compared with those who delivered later in the pandemic. A majority (72%) reported somewhat to extremely negative views of the impact of COVID-19 on their life. CONCLUSION In this national cohort, we detected no effect of COVID-19 on prenatal depression or perceived stress. However, experiencing the COVID-19 pandemic in pregnancy was associated with decreases in gestational age at birth, as well as distress about changes in prenatal care early in the pandemic. KEY POINTS · COVID-19 was associated with shortened gestations.. · Depression was associated with shortened gestations.. · However, stress during the pandemic remained unchanged.. · Most women reported negative impacts of the pandemic..
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Affiliation(s)
- Kimberly S. McKee
- Department of Family Medicine, University of Michigan, Ann Arbor, Michigan
| | - Xiaodan Tang
- Department of Medical Social Sciences, Northwestern University, Chicago, Illinois
| | - Irene Tung
- Department of Psychology, California State University Dominguez Hills, Carson, California
| | - Guojing Wu
- Department of Epidemology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Akram N. Alshawabkeh
- Department of Civil and Environmental Engineering, College of Engineering, Northeastern University, Boston, Massachusetts
| | - Jessica A. Arizaga
- Department of Psychiatry and Behavioral Sciences, University of California-San Francisco, San Francisco, California
| | - Theresa M. Bastain
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, California
| | | | - Carrie V. Breton
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Carlos A. Camargo
- Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | | | - Jose F. Cordero
- Department of Epidemiology and Biostatistics, College of Public Health, Athens, Georgia
| | - Dana Dabelea
- Department of Epidemiology, Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Arielle R. Deutsch
- Department of Pediatrics, Avera Research Institute, University of South Dakota School of Medicine, Sioux Falls, South Dakota
| | | | - Anne L. Dunlop
- Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia
| | - Amy J. Elliott
- Department of Pediatrics, Avera Research Institute, University of South Dakota School of Medicine, Sioux Falls, South Dakota
| | - Assiamira Ferrara
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Margaret R. Karagas
- Department of Epidemiology, Geisel School of Medicine, Lebanon, New Hampshire
| | - Barry Lester
- Center for the Study of Children at Risk, Brown University, Providence, Rhode Island
| | - Cindy T. McEvoy
- Department of Pediatrics, MCR Oregon Health and Science University, Portland, Oregon
| | - John Meeker
- University of Michigan, Environmental Health Sciences, Global Public Health, Ann Arbor, Michigan
| | - Jenae M. Neiderhiser
- Department of Psychology, Pennsylvania State University, University Park, Pennsylvania
| | - Julie Herbstman
- Columbia Mailman School of Public Health, Environmental Health Sciences, New York, New York
| | - Leonardo Trasande
- Department of Pediatrics, New York University, New York
- Department of Environmental Medicine, and Population Health, New York University Grossman School of Medicine and New York University School of Global Public Health, New York University, New York
| | - Thomas G. O’Connor
- Departments of Psychiatry, Psychology, Neuroscience, and Obstetrics and Gynecology, University of Rochester, Rochester, New York
| | - Alison E. Hipwell
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sarah S. Comstock
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan
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5
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Kappelt J, Meigen C, Schild CE, Kiess W, Poulain T. Early child development and its determinants: Findings from a large cohort of healthy children growing up in a low-risk environment. Child Care Health Dev 2024; 50:e13177. [PMID: 37737540 DOI: 10.1111/cch.13177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/20/2023] [Accepted: 09/07/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND Despite numerous studies on early child development, there is still much to be discovered about the significance of possible risk factors. This study examines cognitive, motor, and language development of healthy children growing up in a low-risk environment and how various individual and environmental factors are associated with it. The study also considers whether the importance of particular parameters changes depending on child age. METHODS Within the framework of the LIFE Child study in Leipzig, Germany, 481 children participated in a total of 832 visits between 1 and 36 months of age. Developmental status was assessed using the Third Edition of the Bayley Scales of Infant and Toddler Development. Linear regression analyses were applied to examine the associations between child development and sex, gestational age, birth weight, birth mode, overweight, height, and parental education. RESULTS Mean Bayley composite scores for cognitive, language, and motor development were close to the standard value of 100. Poorer developmental outcomes were significantly associated with lower gestational age, vacuum cup/forceps birth, being overweight, small height, and lower parental education, although some of the associations became insignificant after applying multivariate models. While the association between gestational age and language development became weaker with advancing age, our interaction models found disparities related to parental education to become more apparent in older children across all three domains of early child development. CONCLUSIONS Several factors were identified to be associated with early child development. As children grow older, obstetric parameters, for example, gestational age, might become less relevant compared with sociodemographic factors, for example, parental education.
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Affiliation(s)
- Jonas Kappelt
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany
| | - Christof Meigen
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany
| | - Clara Elise Schild
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany
| | - Wieland Kiess
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany
- Department of Women and Children's Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), Leipzig University, Leipzig, Germany
| | - Tanja Poulain
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany
- Department of Women and Children's Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), Leipzig University, Leipzig, Germany
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6
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Ellehave SM, Thomsen LLH, Frederiksen MS, Overgaard C. Initial programme theory development: The first step in a realist evaluation of a cross-sectoral intervention for expectant Danish parents living with psychosocial risks. PLoS One 2023; 18:e0295378. [PMID: 38117815 PMCID: PMC10732377 DOI: 10.1371/journal.pone.0295378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/21/2023] [Indexed: 12/22/2023] Open
Abstract
A distinct inequality in maternity care exists, and women with psychosocial risks are at a greater risk of adverse birth outcomes. In several high-income countries, a psychosocial risk assessment early in pregnancy is recommended so that expectant parents are offered an appropriate level of care which facilitates relevant, tailored interventions for those in need. In 2017, a cross-sectoral and interdisciplinary intervention for expectant parents with psychosocial risks was developed and implemented in the North Denmark Region. The development process of the intervention has not been reported and theory-based knowledge about how supportive interventions bring about change for expectant parents with psychosocial risks is scarce. Through the initial phase of a realist evaluation, we aimed to elicit key contexts and mechanisms of change regarding the intervention for expectant parents with psychosocial risks. Through an initial programme theory, this article illustrates how, for whom and in which contexts the intervention is intended to work. Data is comprised of intervention documents, 14 pilot observations and 29 realist interviews with key stakeholders. A thematic analytical approach inspired by retroductive thinking was applied to identify and analyse patterns related to the incentive of the intervention, its structure, intended outcomes, generative mechanisms and contextual matters. Generative mechanisms responsible for bringing about change in the intervention were identified as healthcare professionals' approach, continuity, trust, early intervention and social network. Cross-sectoral collaboration and healthcare professionals' competencies were assumed to be central stimulating contextual factors. The initial programme theory developed in this study will serve as the basis for further refinement via empirical testing in a later phase of the realist evaluation.
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Affiliation(s)
- Sara Mandahl Ellehave
- Public Health and Epidemiology Group, Department of Health Science and Technology, Aalborg University, Aalborg East, Denmark
- Clinical Nursing Research Unit, Aalborg University Hospital, Aalborg, Denmark
| | - Louise Lund Holm Thomsen
- Public Health and Epidemiology Group, Department of Health Science and Technology, Aalborg University, Aalborg East, Denmark
| | - Marianne Stistrup Frederiksen
- Public Health and Epidemiology Group, Department of Health Science and Technology, Aalborg University, Aalborg East, Denmark
| | - Charlotte Overgaard
- The Unit of Health Promotion, Department of Public Health, University of Southern Denmark, Esbjerg, Denmark
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7
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Behboudi-Gandevani S, Bidhendi-Yarandi R, Hossein Panahi M, Mardani A, Prinds C, Vaismoradi M, Glarcher M. Prevalence of preterm birth in Scandinavian countries: a systematic review and meta-analysis. J Int Med Res 2023; 51:3000605231203843. [PMID: 37843530 PMCID: PMC10683576 DOI: 10.1177/03000605231203843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 09/11/2023] [Indexed: 10/17/2023] Open
Abstract
OBJECTIVES As welfare societies, Scandinavian countries share characteristics of equality related to healthcare access, gender, and social services. However, cultural and lifestyle variations create country-specific health differences. This meta-analysis assessed the prevalence of preterm birth (PTB) and its categories in Scandinavian countries. METHODS A systematic search in key databases of literature published between 1990 and 2021 identified studies of the prevalence of PTB and its categories. Following the use of the Freeman-Tukey double arcsine transformation, a meta-analysis of weighted data was performed using the random-effects model and meta-prop method. RESULTS We identified 109 observational studies that involved 86,420,188 live births. The overall pooled prevalence (PP) of PTB was 5.3% (PP = 5.3%, 95% confidence interval [CI] 5.1%, 5.5%). The highest prevalence was in Norway (PP = 6.2%, 95% CI 5.3%, 7.0%), followed by Sweden (PP = 5.3%, 95% CI 5.1%, 5.4%), Denmark (PP = 5.2%, 95% CI 4.9%, 5.3%), and Iceland (PP = 5.0%, 95% CI 4.4%, 5.7%). Finland had the lowest PTB rate (PP = 4.9%, 95% CI 4.7%, 5.1%). CONCLUSIONS The overall PP of PTB was 5.3%, with small variations among countries (4.9%-6.2%). The highest and lowest PPs of PTB were in Norway and Finland, respectively.
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Affiliation(s)
| | - Razieh Bidhendi-Yarandi
- Department of Biostatistics and Epidemiology, School of Social Health, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mohammad Hossein Panahi
- Department of Epidemiology, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Mardani
- Nursing and Midwifery Care Research Center, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
| | - Christina Prinds
- Department of Clinical Research, University South Denmark, Odense, Denmark; Department of Women’s Health, University Hospital of Southern Denmark, Esbjerg, Denmark
| | - Mojtaba Vaismoradi
- Faculty of Nursing and Health Sciences, Nord University, Bodø, Norway
- Faculty of Science and Health, Charles Sturt University, Orange, NSW, Australia
| | - Manela Glarcher
- Institute of Nursing Science and Practice, Paracelsus Medical University, Salzburg, Austria
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8
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Alenius S, Kajantie E, Sund R, Nurhonen M, Haaramo P, Näsänen-Gilmore P, Lemola S, Räikkönen K, Schnitzlein DD, Wolke D, Gissler M, Hovi P. School grades and educational attainments of adolescents and young adults born preterm. Sci Rep 2023; 13:231. [PMID: 36604570 PMCID: PMC9816170 DOI: 10.1038/s41598-022-27295-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/29/2022] [Indexed: 01/07/2023] Open
Abstract
Attendance in special education (SE) is more common among individuals born preterm than among those born at term. Less is known about school grades of those born preterm in mainstream education (ME), and how these grades predict later educational attainment. This population-based register-linkage study assessed (1) attendance in SE, and then focused on those in ME by assessing (2) school grades at 16 year, (3) completed educational level at 25 year, and (4) school grades as predictors for completed education by gestational age (GA) with full-term birth (39-41 completed weeks) as reference. The sample comprised 223,744 individuals (10,521 preterm, 4.7%) born in Finland (1/1987-9/1990). Of the sample, 4.9% attended SE. Those born preterm had up to 5.5-fold rates for SE. In ME, those born extremely preterm (EPT) had marginally lower mathematics grades compared with full-term counterparts, whilst those born late preterm or early term had slightly higher grades. Those born EPT or very preterm had lower physical education grades in ME. However, the minor differences in school grades according to GA appear not to translate into educational differences in young adulthood. The associations between school grades at 16 year and completed education at 25 year did not vary by GA.
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Affiliation(s)
- Suvi Alenius
- Finnish Institute for Health and Welfare, Mannerheimintie 166, P.O. Box 30, 00271, Helsinki, Finland. .,Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Eero Kajantie
- Finnish Institute for Health and Welfare, Mannerheimintie 166, P.O. Box 30, 00271, Helsinki, Finland.,Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Faculty of Medicine, PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland.,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Reijo Sund
- Faculty of Health Sciences, School of Medicine, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - Markku Nurhonen
- Finnish Institute for Health and Welfare, Mannerheimintie 166, P.O. Box 30, 00271, Helsinki, Finland
| | - Peija Haaramo
- Finnish Institute for Health and Welfare, Mannerheimintie 166, P.O. Box 30, 00271, Helsinki, Finland
| | - Pieta Näsänen-Gilmore
- Finnish Institute for Health and Welfare, Mannerheimintie 166, P.O. Box 30, 00271, Helsinki, Finland.,Tampere Center for Child, Adolescent, and Maternal Health Research: Global Health Group, Faculty of Medicine, and Health Technology, Tampere University, Tampere, Finland
| | - Sakari Lemola
- Department of Psychology, Bielefeld University, Bielefeld, Germany.,Department of Psychology, University of Warwick, Coventry, UK
| | - Katri Räikkönen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Daniel D Schnitzlein
- Institute of Labour Economics, Leibniz University, Hannover, Germany.,Institute of Labor Economics (IZA), Bonn, Germany
| | - Dieter Wolke
- Department of Psychology, University of Warwick, Coventry, UK
| | - Mika Gissler
- Finnish Institute for Health and Welfare, Mannerheimintie 166, P.O. Box 30, 00271, Helsinki, Finland.,Region Stockholm, Academic Primary Health Care Centre, Stockholm, Sweden & Karolinska Institute, Department of Molecular Medicine and Surgery, Stockholm, Sweden
| | - Petteri Hovi
- Finnish Institute for Health and Welfare, Mannerheimintie 166, P.O. Box 30, 00271, Helsinki, Finland.,Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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9
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Bergeron J, Cederkvist L, Fortier I, Rod NH, Andersen PK, Andersen AMN. Maternal stress during pregnancy and gestational duration: A cohort study from the Danish National Birth Cohort. Paediatr Perinat Epidemiol 2023; 37:45-56. [PMID: 35934879 PMCID: PMC10087198 DOI: 10.1111/ppe.12918] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND Preterm birth is one of the most important contributors to neonatal mortality and morbidity. Experiencing stress during pregnancy may increase the risk of adverse birth outcomes, including preterm birth. This association has been observed in previous studies, but differences in measures used limit comparability. OBJECTIVE The objective of the study was to investigate the association between two measures of maternal stress during pregnancy, life stress and emotional distress, and gestation duration. METHODS Women recruited in the Danish National Birth Cohort from 1996 to 2002, who provided information on their stress level during pregnancy and expecting a singleton baby, were included in the study. We assessed the associations between the level of life stress and emotional distress in quartiles, both collected at 31 weeks of pregnancy on average, and the rate of giving birth using Cox regression within intervals of the gestational period. RESULTS A total of 80,991 pregnancies were included. Women reporting moderate or high levels of life stress vs no stress had a higher rate of giving birth earlier within all intervals of gestational age (e.g. high level: 27-33 weeks: hazard ratio (HR) 1.38, 95% confidence interval (CI) 1.04, 1.84; 34-36 weeks: 1.10, 95% CI 0.97, 1.25; 37-38 weeks: 1.21, 95% CI 1.15, 1.28). These associations between life stress and preterm birth were mainly driven by pregnancy worries. For emotional distress, a high level of distress was associated with shorter length of gestation in the preterm (27-33 weeks: 1.38, 95% CI 1.02, 1.86; 34-36 weeks: 1.05, 95% CI 0.91, 1.19) and early term (1.11, 95% CI 1.04, 1.17) intervals. CONCLUSIONS Emotional distress and life stress were shown to be associated with gestational age at birth, with pregnancy-related stress being the single stressor driving the association. This suggests that reverse causality may, at least in parts, explain the earlier findings of stress as a risk factor for preterm birth.
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Affiliation(s)
- Julie Bergeron
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark.,Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Luise Cederkvist
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Isabel Fortier
- Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Naja Hulvej Rod
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Per Kragh Andersen
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
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Kure Pollstergaard K, Wiingreen R, Gregersen R, Mathiasen R, Mølholm Hansen B, Greisen G. Socioeconomic outcomes beyond 30 years of age in a cohort born with very low birth weight. Acta Paediatr 2023; 112:78-84. [PMID: 36176205 PMCID: PMC10091976 DOI: 10.1111/apa.16557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 12/13/2022]
Abstract
AIM As survival of infants born prematurely has increased dramatically, questions on long-term consequences have emerged. Our aim was to investigate long-term effects of very low birth weight on socioeconomic outcomes. METHODS One hundred and fifty very low birth weight infants (VLBW) born from 1980 to 1982 at Rigshospitalet, Denmark, who had previously been followed up at age 2, 4 and 18 years, were compared to cohorts of low birth weight, normal birth weight (NBW) and a national population-based reference cohort. From the Danish national registers we obtained data regarding educational level, financial independence and living arrangements. In addition, we used the previously published results from the three cohorts. RESULTS The VLBW cohort had lower intelligence quotient and higher risk of significant school difficulties evaluated at age 4 and 18 years. When compared to the NBW cohort, at 30-36 years of age the VLBW cohort tended to have lower educational level, OR 1.7, 95% CI 0.8-3.9, were not financially independent OR 1.5, 95% CI 0.6-3.7, lived alone OR 2.0, 95% CI 1.0-3.8 and had higher rates of the combination of all three outcomes, OR 3.2, 95% CI 0.7-15.8. CONCLUSIONS We found trends towards poor socioeconomic outcomes in young adults born with VLBW. The relative disadvantages appeared smaller than that in childhood.
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Affiliation(s)
- Katrine Kure Pollstergaard
- Department of Neonatology, Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Rikke Wiingreen
- Department of Neonatology, Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital, Hilleroed, Denmark
| | - Rasmus Gregersen
- Department of Neonatology, Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Rene Mathiasen
- Department of Pediatrics and Adolescent Medicine, Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Bo Mølholm Hansen
- Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital, Hilleroed, Denmark
| | - Gorm Greisen
- Department of Neonatology, Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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11
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Araganji R, Somannavar MS, Vernekar SS, Kavi A, Hoffman MK, Goudar SS. The impact of low-dose aspirin on markers of inflammation and placental function: an ancillary study of the ASPIRIN trial. J Matern Fetal Neonatal Med 2022; 35:6901-6905. [PMID: 34016022 DOI: 10.1080/14767058.2021.1929160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/10/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To determine the impact of low-dose aspirin (81 mg) on markers of maternal inflammation and placental function. SETTING Rural Southern India. POPULATION Nulliparous women with a singleton pregnancy dated by ultrasound who were enrolled in the ASPIRIN (Aspirin Supplementation for Pregnancy Indicated risk Reduction In Nulliparas) Trial. METHODS We performed a case-control study to elucidate the impact of low dose aspirin (LDA) on markers of placental function and maternal inflammation among women who delivered prematurely compared to term controls in women enrolled in the ASPIRIN trial. Women were prospectively enrolled in an ancillary observational trial wherein maternal serum was collected and measured between 10 to 13 weeks and 17 to 21 weeks of gestation after initiation of aspirin or an identical placebo. RESULTS From 2016-18 with a total of 666 n women enrolled in this ancillary trial of whom 269 were selected for analyte analysis. Women who received LDA had lower levels of Alpha Feto-Protein (AFP) at 10 to 13 weeks than women who received placebo (Placebo) (LDA 18.3 ng/mL vs 21.4 ng/mL -P 0.001). AFP was similar between the two groups at 17 to 21 weeks. No other differences were seen in C-Reactive protein or Anti-Mullerian Hormone. CONCLUSION Low-dose aspirin administration lowers AFP early in pregnancy.
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Affiliation(s)
- Ramesh Araganji
- Department of Physiology, J N Medical College, KLE Academy of Higher Education and Research, Belagavi, India
| | - Manjunath S Somannavar
- Department of Biochemistry, J N Medical College, KLE Academy of Higher Education and Research, Belagavi, India
| | - Sunil S Vernekar
- Department of Physiology, J N Medical College, KLE Academy of Higher Education and Research, Belagavi, India
| | - Avinash Kavi
- Department of Community Medicine, J N Medical College, KLE Academy of Higher Education and Research, Belagavi, India
| | | | - Shivaprasad S Goudar
- Department of Physiology, J N Medical College, KLE Academy of Higher Education and Research, Belagavi, India
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Corbett HJ, Williams R, Agarwal U. Timing of delivery in antenatal fetal hydronephrosis: a snap shot social media survery of obstetric and fetal medicine practice. J Perinat Med 2022; 50:620-624. [PMID: 35599300 DOI: 10.1515/jpm-2022-0120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/29/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To identify when obstetricians would deliver a fetus with antenatal hydronephrosis and normal liquor. Designed as snap-shot survey. Setting: Survey Monkey link. Population/sample were obstetrics and fetal medicine consultants who received the survey link via closed professional forums on the North West Coast Maternity Clinical Network, Facebook, and publicly on Twitter. METHODS Survey link publicised as above, obstetric consultants were asked at what gestation would they deliver a fetus with antenatal hydronephrosis and normal liquor; and what criteria would they use to make that decision. Main outcome measures were number of years in practice, gestation at delivery, anteroposterior diameter (APD) of renal pelvis. RESULTS A total of 44/102 respondents (43%) would deliver prior to 40 weeks (median no. of years as consultant 10 years [IQR 5-17]) vs. those who would not (median years as consultant 5.5 [IQR 3-12]). Re APD threshold of delivery: 17 indicated delivery if the APD were 20 mm, 10 if it were 21-30 mm and 16 if it were >30 mm. Re gestation at which they would deliver: 13 indicated 37-38 weeks, 13 indicated 38-39 weeks and 17 indicated 39-40 weeks. Reasons selected for delivery before term were obstetric anxiety n=2, maternal request n=2, maternal anxiety n=2 and concern about fatal renal damage/renal damage n=34. CONCLUSIONS A surprising number of respondents would consider early delivery of a fetus with hydronephrosis and normal liquor despite the lack of evidence of benefit. The evidence supporting term delivery means that early term delivery is only indicated for obstetric reasons in this scenario.
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Affiliation(s)
| | - Ruby Williams
- Department of Surgery, Hull Royal Infirmary, Hull, UK
| | - Umber Agarwal
- Department of Fetal Medicine, Liverpool Women's Hospital, Liverpool, UK
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13
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Wikström T, Kuusela P, Jacobsson B, Hagberg H, Lindgren P, Svensson M, Wennerholm U, Valentin L. Cost-effectiveness of cervical length screening and progesterone treatment to prevent spontaneous preterm delivery in Sweden. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2022; 59:778-792. [PMID: 35195310 PMCID: PMC9327505 DOI: 10.1002/uog.24884] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 05/20/2023]
Abstract
OBJECTIVE To estimate the cost-effectiveness of strategies to prevent spontaneous preterm delivery (PTD) in asymptomatic singleton pregnancies, using prevalence and healthcare cost data from the Swedish healthcare context. METHODS We designed a decision analytic model based on the Swedish CERVIX study to estimate the cost-effectiveness of strategies to prevent spontaneous PTD in asymptomatic women with a singleton pregnancy. The model was constructed as a combined decision-tree model and Markov model with a time horizon of 100 years. Four preventive strategies, namely 'Universal screening', 'High-risk-based screening' (i.e. screening of high-risk women only), 'Low-risk-based screening' (i.e. treatment of high-risk population and screening of remaining women) and 'Nullipara screening' (i.e. treatment of high-risk population and screening of nulliparous women only), included second-trimester cervical length (CL) screening by transvaginal ultrasound followed by vaginal progesterone treatment in the case of a short cervix. A fifth preventive strategy involved vaginal progesterone treatment of women with previous spontaneous PTD or late miscarriage but no CL screening ('No screening, treat high-risk group'). For comparison, we used a sixth strategy implying no specific intervention to prevent spontaneous PTD, reflecting the current situation in Sweden ('No screening'). Probabilities for a short cervix (CL ≤ 25 mm; base-case) and for spontaneous PTD at < 33 + 0 weeks and at 33 + 0 to 36 + 6 weeks were derived from the CERVIX study, and probabilities for stillbirth, neonatal mortality and long-term morbidity (cerebral palsy) from Swedish health data registers. Costs were based on Swedish data, except costs for cerebral palsy, which were based on Danish data. We assumed that vaginal progesterone reduces spontaneous PTD before 33 weeks by 30% and spontaneous PTD at 33-36 weeks by 10% (based on the literature). All analyses were from a societal perspective. We expressed the effectiveness of each strategy as gained quality-adjusted life years (QALYs) and presented cost-effectiveness as average (ACER; average cost per gained QALY compared with 'No screening') and incremental (ICER; difference in costs divided by the difference in QALYs for each of two strategies being compared) cost-effectiveness ratios. We performed deterministic and probabilistic sensitivity analysis. The results of the latter are shown as cost-effectiveness acceptability curves. Willingness-to-pay was set at a maximum of 500 000 Swedish krona (56 000 US dollars (USD)), as suggested by the Swedish National Board of Health and Welfare. RESULTS All interventions had better health outcomes than did 'No screening', with fewer screening-year deaths and more lifetime QALYs. The best strategy in terms of improved health outcomes was 'Low-risk-based screening', irrespective of whether screening was performed at 18 + 0 to 20 + 6 weeks (Cx1) or at 21 + 0 to 23 + 6 weeks (Cx2). 'Low-risk-based screening' at Cx1 was cost-effective, while 'Low-risk-based screening' at Cx2 entailed high costs compared with other alternatives. The ACERs were 2200 USD for 'Low-risk-based screening' at Cx1 and 36 800 USD for 'Low-risk-based screening' at Cx2. Cost-effectiveness was particularly sensitive to progesterone effectiveness and to productivity loss due to sick leave during pregnancy. The probability that 'Low-risk-based screening' at Cx1 is cost-effective compared with 'No screening' was 71%. CONCLUSION Interventions to prevent spontaneous PTD in asymptomatic women with a singleton pregnancy, including CL screening with progesterone treatment of cases with a short cervix, may be cost-effective in Sweden. © 2022 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- T. Wikström
- Centre of Perinatal Medicine and Health, Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Region Västra Götaland, Sahlgrenska University Hospital, Department of ObstetricsGothenburgSweden
| | | | - B. Jacobsson
- Centre of Perinatal Medicine and Health, Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Region Västra Götaland, Sahlgrenska University Hospital, Department of ObstetricsGothenburgSweden
| | - H. Hagberg
- Centre of Perinatal Medicine and Health, Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Region Västra Götaland, Sahlgrenska University Hospital, Department of ObstetricsGothenburgSweden
| | - P. Lindgren
- Department of Clinical Science, Intervention and Technology, Karolinska InstitutetStockholmSweden
- Centre for Fetal MedicineKarolinska University HospitalStockholmSweden
| | - M. Svensson
- School of Public Health and Community Medicine, Institute of MedicineUniversity of GothenburgGothenburgSweden
| | - U.‐B. Wennerholm
- Centre of Perinatal Medicine and Health, Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Region Västra Götaland, Sahlgrenska University Hospital, Department of ObstetricsGothenburgSweden
| | - L. Valentin
- Department of Obstetrics and GynecologySkåne University HospitalMalmöSweden
- Department of Clinical Sciences MalmöLund UniversityMalmöSweden
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Elsenburg LK, Rieckmann A, Nguyen TL, Bengtsson J, Andersen AMN, Taylor-Robinson D, Lange T, Rod NH. Mediation of the parental education gradient in early adult mortality by childhood adversity: a population-based cohort study of more than 1 million children. THE LANCET PUBLIC HEALTH 2022; 7:e146-e155. [DOI: 10.1016/s2468-2667(21)00275-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 11/17/2021] [Accepted: 11/26/2021] [Indexed: 12/26/2022] Open
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Sentenac M, Benhammou V, Aden U, Ancel PY, Bakker LA, Bakoy H, Barros H, Baumann N, Bilsteen JF, Boerch K, Croci I, Cuttini M, Draper E, Halvorsen T, Johnson S, Källén K, Land T, Lebeer J, Lehtonen L, Maier RF, Marlow N, Morgan A, Ni Y, Raikkonen K, Rtimi A, Sarrechia I, Varendi H, Vollsaeter M, Wolke D, Ylijoki M, Zeitlin J. Maternal education and cognitive development in 15 European very-preterm birth cohorts from the RECAP Preterm platform. Int J Epidemiol 2022; 50:1824-1839. [PMID: 34999864 DOI: 10.1093/ije/dyab170] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Studies are sparse and inconclusive about the association between maternal education and cognitive development among children born very preterm (VPT). Although this association is well established in the general population, questions remain about its magnitude among children born VPT whose risks of medical and developmental complications are high. We investigated the association of maternal education with cognitive outcomes in European VPT birth cohorts. METHODS We used harmonized aggregated data from 15 population-based cohorts of children born at <32 weeks of gestational age (GA) or <1500 g from 1985 to 2013 in 13 countries with information on maternal education and assessments of general development at 2-3 years and/or intelligence quotients between 4 and 15 years. Term-born controls (≥37 weeks of GA) were available in eight cohorts. Maternal education was classified as: low (primary/lower secondary); medium (upper secondary/short tertiary); high (bachelor's/higher). Pooled standardized mean differences (SMDs) in cognitive scores were estimated (reference: high educational level) for children assessed at ages 2-3, 4-7 and 8-15 years. RESULTS The study included 10 145 VPT children from 12 cohorts at 2-3 years, 8829 from 12 cohorts at 4-7 years and 1865 children from 6 cohorts at 8-15 years. Children whose mothers had low, compared with high, educational attainment scored lower on cognitive measures [pooled unadjusted SMDs: 2-3 years = -0.32 (95% confidence intervals: -0.43 to -0.21); 4-7 years = -0.57 (-0.67; -0.47); 8-15 years = -0.54 (-0.72; -0.37)]. Analyses by GA subgroups (<27 vs ≥27 weeks) in children without severe neonatal morbidity and term controls yielded similar results. CONCLUSIONS Across diverse settings and regardless of the degree of prematurity, low maternal education was associated with lower cognition.
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Affiliation(s)
- Mariane Sentenac
- Université de Paris, CRESS, Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, Inserm, INRA, Paris, France
| | - Valérie Benhammou
- Université de Paris, CRESS, Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, Inserm, INRA, Paris, France
| | - Ulrika Aden
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
| | - Pierre-Yves Ancel
- Université de Paris, CRESS, Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, Inserm, INRA, Paris, France
| | - Leonhard A Bakker
- Child Health, Netherlands Organization for Applied Scientific Research (TNO), Leiden, The Netherlands
| | - Hannah Bakoy
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Paediatric and Adolescent Medicine, Haukeland University Hospital, Bergen, Norway
| | - Henrique Barros
- EPIUnit-Instituto de Saúde Pública da Universidade do Porto, Porto, Portugal
| | - Nicole Baumann
- Department of Psychology, University of Warwick, Coventry, UK
| | - Josephine Funck Bilsteen
- Department of Pediatrics, Hvidovre University Hospital, Hvidovre, Denmark
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Klaus Boerch
- Department of Pediatrics, Hvidovre University Hospital, Hvidovre, Denmark
| | - Ileana Croci
- Clinical Care and Management Innovation Research Area, Bambino Gesù Pediatric Hospital, Roma, Lazio, Italy
| | - Marina Cuttini
- Clinical Care and Management Innovation Research Area, Bambino Gesù Pediatric Hospital, Roma, Lazio, Italy
| | - Elizabeth Draper
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Thomas Halvorsen
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway
| | - Samantha Johnson
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Karin Källén
- Department of Obstetrics and Gynecology, Unit of Reproduction Epidemiology, Institution of Clinical Sciences, University of Lund, Lund, Sweden
| | - Tuuli Land
- Department of Pediatrics, University of Tartu, Children's Clinic of Tartu University Hospital, Tartu, Estonia
| | - Jo Lebeer
- Department of Family Medicine & Population Health, Disability Studies, Faculty of Medicine & Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Liisa Lehtonen
- Department of Pediatrics and Adolescent Medicine, Turku University Hospital Turku, Turku, Finland
- Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Rolf F Maier
- Children's Hospital, University Hospital, Philipps University Marburg, Marburg, Germany
| | - Neil Marlow
- UCL Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK
| | - Andrei Morgan
- Université de Paris, CRESS, Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, Inserm, INRA, Paris, France
- UCL Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK
| | - Yanyan Ni
- Department of Psychology, University of Warwick, Coventry, UK
- UCL Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK
| | - Katri Raikkonen
- Department of Psychology and Logopedics, University Of Helsinki, Helsinki, Finland
| | - Anass Rtimi
- Université de Paris, CRESS, Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, Inserm, INRA, Paris, France
| | - Iemke Sarrechia
- Department of Family Medicine & Population Health, Disability Studies, Faculty of Medicine & Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Heili Varendi
- Department of Pediatrics, University of Tartu, Children's Clinic of Tartu University Hospital, Tartu, Estonia
| | - Maria Vollsaeter
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Paediatric and Adolescent Medicine, Haukeland University Hospital, Bergen, Norway
| | - Dieter Wolke
- Department of Psychology, University of Warwick, Coventry, UK
| | - Milla Ylijoki
- Department of Pediatrics and Adolescent Medicine, Turku University Hospital Turku, Turku, Finland
- Department of Paediatric Neurology, University of Turku and Turku University Hospital, Turku, Finland
| | - Jennifer Zeitlin
- Université de Paris, CRESS, Obstetrical Perinatal and Pediatric Epidemiology Research Team, EPOPé, Inserm, INRA, Paris, France
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Bilsteen JF, Alenius S, Bråthen M, Børch K, Ekstrøm CT, Kajantie E, Lashkariani M, Nurhonen M, Risnes K, Sandin S, van der Wel KA, Wolke D, Andersen AMN. Gestational Age, Parent Education, and Education in Adulthood. Pediatrics 2022; 149:183795. [PMID: 34877601 PMCID: PMC9645686 DOI: 10.1542/peds.2021-051959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/15/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Adults born preterm (<37 weeks) have lower educational attainment than those born term. Whether this relationship is modified by family factors such as socioeconomic background is, however, less well known. We investigated whether the relationship between gestational age and educational attainment in adulthood differed according to parents' educational level in 4 Nordic countries. METHODS This register-based cohort study included singletons born alive from 1987 up to 1992 in Denmark, Finland, Norway, and Sweden. In each study population, we investigated effect modification by parents' educational level (low, intermediate, high) on the association between gestational age at birth (25-44 completed weeks) and low educational attainment at 25 years (not having completed upper secondary education) using general estimation equations logistic regressions. RESULTS A total of 4.3%, 4.0%, 4.8%, and 5.0% singletons were born preterm in the Danish (n = 331 448), Finnish (n = 220 095), Norwegian (n = 292 840), and Swedish (n = 513 975) populations, respectively. In all countries, both lower gestational age and lower parental educational level contributed additively to low educational attainment. For example, in Denmark, the relative risk of low educational attainment was 1.84 (95% confidence interval 1.44 to 2.26) in adults born at 28 to 31 weeks whose parents had high educational level and 5.25 (95% confidence interval 4.53 to 6.02) in adults born at 28 to 31 weeks whose parents had low educational level, compared with a reference group born at 39 to 41 weeks with high parental educational level. CONCLUSIONS Although higher parental education level was associated with higher educational attainment for all gestational ages, parental education did not mitigate the educational disadvantages of shorter gestational age.
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Affiliation(s)
- Josephine Funck Bilsteen
- Department of Paediatrics, Hvidovre University Hospital, Hvidovre, Denmark,Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark,Address correspondence to Josephine Funck Bilsteen, MSc, Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark, Øster Farimagsgade 5, 1014 København K. E-mail:
| | - Suvi Alenius
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland,Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Magne Bråthen
- Department of Social Work, Child Welfare and Social Policy, Oslo Metropolitan University, Norway
| | - Klaus Børch
- Department of Paediatrics, Hvidovre University Hospital, Hvidovre, Denmark
| | - Claus Thorn Ekstrøm
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Eero Kajantie
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland,Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway,PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Mariam Lashkariani
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Markku Nurhonen
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Kari Risnes
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway,Department of Research, Innovation, and Education and Children’s Clinic, St Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Sven Sandin
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden,Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China,Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York,Seaver Autism Center for Research and Treatment at Mount Sinai, New York, New York
| | - Kjetil A. van der Wel
- Department of Social Work, Child Welfare and Social Policy, Oslo Metropolitan University, Norway
| | - Dieter Wolke
- Department of Psychology and Centre of Early Life, University of Warwick, Coventry, United Kingdom
| | - Anne-Marie Nybo Andersen
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
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Heikkilä K, Pulakka A, Metsälä J, Alenius S, Hovi P, Gissler M, Sandin S, Kajantie E. Preterm birth and the risk of chronic disease multimorbidity in adolescence and early adulthood: A population-based cohort study. PLoS One 2021; 16:e0261952. [PMID: 34972182 PMCID: PMC8719774 DOI: 10.1371/journal.pone.0261952] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/14/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND People who were born prematurely have high risks of many individual diseases and conditions in the early part of the life course. However, our knowledge of the burden of multiple diseases (multimorbidity) among prematurely born individuals is limited. We aimed to investigate the risk and patterns of chronic disease multimorbidity in adolescence and early adulthood among individuals born across the spectrum of gestational ages, comparing preterm and full-term born individuals. METHODS AND FINDINGS We used individual-level data from linked nationwide registers to examine the associations of gestational age at birth with specialised healthcare records of ≥2 chronic diseases (multimorbidity) in adolescence (age 10-17 years) and early adulthood (age 18-30 years). Our study population comprised 951,116 individuals (50.2% females) born alive in Finland between 1st January 1987 and 31st December 2006, inclusive. All individuals were followed from age 10 years to the onset of multimorbidity, emigration, death, or 31 December 2016 (up to age 30 years). We estimated hazard ratios (HRs) and 95% confidence intervals (CIs) for multimorbidity using flexible parametric survival models. During 6,417,903 person-years at risk (median follow-up: 7.9 years), 11,919 individuals (1.3%) had multimorbidity in adolescence (18.6 per 10,000 person-years). During 3,967,419 person-years at risk (median follow-up: 6.2 years), 15,664 individuals (1.7%) had multimorbidity in early adulthood (39.5 per 10,000 person-years). Adjusted HRs for adolescent multimorbidity, comparing preterm to full-term born individuals, were 1.29 (95% CI: 1.22 to 1.36) and 1.26 (95% CI: 1.18 to 1.35) in females and males, respectively. The associations of preterm birth with early adult multimorbidity were less marked, with the adjusted HRs indicating 1.18-fold risk in females (95% CI: 1.12 to 1.24) and 1.10-fold risk in males (95% CI: 1.04 to 1.17). We observed a consistent dose-response relationship between earlier gestational age at birth and increasing risks of both multimorbidity outcomes. Compared to full-term born males, those born at 37-38 weeks (early term) had a 1.06-fold risk of multimorbidity in adolescence (95% CI: 0.98 to 1.14) and this risk increased in a graded manner up to 6.85-fold (95% CI: 5.39 to 8.71) in those born at 23-27 weeks (extremely premature), independently of covariates. Among females, the same risks ranged from 1.16-fold (95% CI: 1.09 to 1.23) among those born at 37-38 weeks to 5.65-fold (95% CI: 4.45 to 7.18) among those born at 23-27 weeks. The corresponding risks of early adult multimorbidity were similar in direction but less marked in magnitude, with little difference in risks between males and females born at 36-37 weeks but up to 3-fold risks observed among those born at 23-27 weeks. CONCLUSIONS Our findings indicate that an earlier gestational age at birth is associated with increased risks of chronic disease multimorbidity in the early part of the life course. There are currently no clinical guidelines for follow-up of prematurely born individuals beyond childhood, but these observations suggest that information on gestational age would be a useful characteristic to include in a medical history when assessing the risk of multiple chronic diseases in adolescent and young adult patients.
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Affiliation(s)
- Katriina Heikkilä
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Anna Pulakka
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Johanna Metsälä
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Suvi Alenius
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
- Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Petteri Hovi
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Mika Gissler
- Information Services Department, Finnish Institute for Health and Welfare, Helsinki, Finland
- Academic Primary Health Care Centre, Region Stockholm, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Sven Sandin
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
- Seaver Autism Center for Research and Treatment at Mount Sinai, New York, NY, United States of America
| | - Eero Kajantie
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
- PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
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18
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Bilsteen JF, Ekstrøm CT, Børch K, Nybo Andersen A. The role of parental education on the relationship between gestational age and school outcomes. Paediatr Perinat Epidemiol 2021; 35:726-735. [PMID: 34080707 PMCID: PMC8597013 DOI: 10.1111/ppe.12766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 02/10/2021] [Accepted: 02/14/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Individuals born preterm may experience difficulties beyond the neonatal period, such as poorer school outcomes. However, whether these outcomes are modified by family factors is less well-known. OBJECTIVES To investigate whether parental educational level modify the relationship of gestational age with completion of final examinations and grade point average in compulsory education. METHODS This nationwide register-based cohort study included singletons born in Denmark during 1995-2001. We investigated the differences in the associations between gestational age (24-44 weeks) and two school outcomes at 16 years according to parental educational level (lower (≤10 years), intermediate (11-13 years), and higher (>13 years)). Mixed-effect logistic regression and mixed-effect linear regression were used to model completion of final examination and grade point average, respectively. RESULTS Of the 425 101 singletons, 4.7% were born before 37 weeks. The risk of not completing final examination increased with shorter gestational age and lower parental educational level. For instance, among adolescents whose parents had a lower educational level, the risk increased from 23.9% (95% CI, 23.1, 24.6) for those born in week 40 to 36.6% (95% CI, 31.5, 42.1) for those born in week 28. For adolescents whose parents had a higher educational level, the corresponding risk increase was 5.9% (95% CI, 5.7, 6.1) to 10.5% (95% CI, 8.6, 12.8), respectively. Grade point average decreased with shorter gestational age in adolescents born before 30 weeks and with lower parental educational level. The associations between gestational age and grade point average were similar across parental educational levels. For completions of final examination, the associations with gestational age were weaker with higher parental educational level. CONCLUSIONS Shorter gestational age and lower parental educational level were associated with poorer school outcomes. Our findings suggest that parental educational level mitigates the adverse effects of shorter gestational age on some school outcomes.
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Affiliation(s)
- Josephine Funck Bilsteen
- Department of PaediatricsHvidovre University HospitalHvidovreDenmark,Section of EpidemiologyDepartment of Public HealthUniversity of CopenhagenCopenhagenDenmark
| | - Claus Thorn Ekstrøm
- Section of BiostatisticsDepartment of Public HealthUniversity of CopenhagenCopenhagenDenmark
| | - Klaus Børch
- Department of PaediatricsHvidovre University HospitalHvidovreDenmark
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19
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Hedges A, Corman H, Noonan K, Reichman NE. Gestational Age at Term and Educational Outcomes at Age Nine. Pediatrics 2021; 148:peds.2020-021287. [PMID: 34244451 PMCID: PMC8344335 DOI: 10.1542/peds.2020-021287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/24/2021] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES To estimate associations between gestational age (GA) and teacher-reported academic outcomes at age 9 years among children born at term (37-41 weeks). METHODS A secondary data analysis of 1405 children participating in a national US birth cohort study was conducted. At age 9 years, students were evaluated by their teachers in the areas of mathematics, science and social studies, and language and literacy. Unadjusted and adjusted logistic regression models of associations between GA and teacher-reported academic outcomes were estimated and neonatal morbidities were explored as potential pathways. RESULTS A continuous measure of GA in weeks was significantly associated with above-average rankings in all areas. The associations were similar across outcomes (eg, mathematics [odds ratio (OR): 1.13; confidence interval (CI): 1.02-1.25], science and social studies [OR: 1.13; CI: 1.01-1.26], and language and literacy [OR: 1.16; CI: 1.05-1.28]) in a model that adjusted for child sex, maternal characteristics, and obstetric risk factors and delivery complications. Other specifications indicate a positive association between late term (41 weeks) and mathematics and a negative association between early term (37-38 weeks) and language and literacy, compared with term (39-40). The associations did not appear to operate through neonatal morbidity. CONCLUSIONS The findings highlight the importance of GA, even at term. Whereas current guidelines suggest waiting until at least 39 weeks to deliver when possible, our findings add to a small group of studies suggesting that GA through 41 weeks is associated with improvements in some educational outcomes.
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Affiliation(s)
| | - Hope Corman
- Department of Economics, Rider University and National Bureau of Economic Research, Lawrenceville, New Jersey
| | - Kelly Noonan
- Department of Economics, Princeton University, Princeton, New Jersey
| | - Nancy E. Reichman
- Department of Pediatrics, Robert Wood Johnson Medical School, and,Child Health Institute of New Jersey, Rutgers University, New Brunswick, New Jersey
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20
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Hochstedler KA, Bell G, Park H, Ghassabian A, Bell EM, Sundaram R, Grantz KL, Yeung EH. Gestational Age at Birth and Risk of Developmental Delay: The Upstate KIDS Study. Am J Perinatol 2021; 38:1088-1095. [PMID: 32143225 PMCID: PMC7507972 DOI: 10.1055/s-0040-1702937] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The aim of this study is to model the association between gestational age at birth and early child development through 3 years of age. STUDY DESIGN Development of 5,868 children in Upstate KIDS (New York State; 2008-2014) was assessed at 7 time points using the Ages and Stages Questionnaire (ASQ). The ASQ was implemented using gestational age corrected dates of birth at 4, 8, 12, 18, 24, 30, and 36 months. Whether children were eligible for developmental services from the Early Intervention Program was determined through linkage. Gestational age was based on vital records. Statistical models adjusted for covariates including sociodemographic factors, maternal smoking, and plurality. RESULTS Compared with gestational age of 39 weeks, adjusted odds ratios (aOR) and 95% confidence intervals of failing the ASQ for children delivered at <32, 32-34, 35-36, 37, 38, and 40 weeks of gestational age were 5.32 (3.42-8.28), 2.43 (1.60-3.69), 1.38 (1.00-1.90), 1.37 (0.98-1.90), 1.29 (0.99-1.67), 0.73 (0.55-0.96), and 0.51 (0.32-0.82). Similar risks of being eligible for Early Intervention Program services were observed (aOR: 4.19, 2.10, 1.29, 1.20, 1.01, 1.00 [ref], 0.92, and 0.78 respectively for <32, 32-34, 37, 38, 39 [ref], 40, and 41 weeks). CONCLUSION Gestational age was inversely associated with developmental delays for all gestational ages. Evidence from our study is potentially informative for low-risk deliveries at 39 weeks, but it is notable that deliveries at 40 weeks exhibited further lower risk.
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Affiliation(s)
- Kimberly A Hochstedler
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, Michigan
| | - Griffith Bell
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | - Hyojun Park
- Department of Sociology, Utah State University, Logan, Utah
| | - Akhgar Ghassabian
- Departments of Pediatrics, Environmental Medicine, and Population Health, New York University School of Medicine, New York, New York
| | - Erin M Bell
- Departments of Environmental Health Sciences and Epidemiology and Biostatistics, University at Albany School of Public Health, Albany, New York
| | - Rajeshwari Sundaram
- Biostatistics & Bioinformatics Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | - Katherine L Grantz
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | - Edwina H Yeung
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
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21
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Xiao J, Gao Y, Yu Y, Toft G, Zhang Y, Luo J, Xia Y, Chawarska K, Olsen J, Li J, Liew Z. Associations of parental birth characteristics with autism spectrum disorder (ASD) risk in their offspring: a population-based multigenerational cohort study in Denmark. Int J Epidemiol 2021; 50:485-495. [PMID: 33411909 DOI: 10.1093/ije/dyaa246] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Fetal exposure risk factors are associated with increased autism spectrum disorder (ASD) risk. New hypotheses regarding multigenerational risk for ASD have been proposed, but epidemiological evidence is largely lacking. We evaluated whether parental birth characteristics, including preterm birth and low birthweight, were associated with ASD risk in offspring. METHODS We conducted a nationwide register-based cohort study that included 230 174 mother-child and 157 926 father-child pairs in Denmark. Logistic regression models were used to estimate odds ratios (OR) and 95% confidence intervals (CI) for offspring ASD according to parental preterm (<37 weeks) and low birthweight (<2500 g) status, with or without adjustment for certain grandmaternal sociodemographic factors. Mediation analyses were performed for selected parental and offspring health-related factors. RESULTS Offspring of mothers or fathers with adverse birth characteristics had about 31-43% higher risk for ASD (maternal preterm birth, OR = 1.31, 95% CI= 1.12, 1.55; maternal low birthweight, OR = 1.35, 95% CI: 1.17,1.57; paternal preterm birth, OR = 1.43, 95% CI = 1.18, 1.73; paternal low birthweight, OR = 1.38, 95% CI= 1.13, 1.70). Parents born very preterm (<32 weeks) marked a nearly 2-fold increase in ASD risk in their children. These associations were slightly attenuated upon adjustment for grandmaternal sociodemographic factors. Mediation analyses suggested that parental social-mental and offspring perinatal factors might explain a small magnitude of the total effect observed, especially for maternal birth characteristic associations. CONCLUSIONS Offspring of parents born with adverse characteristics had an elevated risk for ASD. Transmission of ASD risk through maternal and paternal factors should be considered in future research on ASD aetiology.
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Affiliation(s)
- Jingyuan Xiao
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA.,Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | - Yu Gao
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, CT, USA.,Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongfu Yu
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Gunnar Toft
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Yawei Zhang
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA.,Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | - Jiajun Luo
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA.,Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | - Yuntian Xia
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | | | - Jørn Olsen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Jiong Li
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Zeyan Liew
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA.,Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, CT, USA
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22
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Xie Y, Wang X, Mu Y, Liu Z, Wang Y, Li X, Dai L, Li Q, Li M, Chen P, Zhu J, Liang J. Characteristics and adverse outcomes of Chinese adolescent pregnancies between 2012 and 2019. Sci Rep 2021; 11:12508. [PMID: 34131205 PMCID: PMC8206124 DOI: 10.1038/s41598-021-92037-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/27/2021] [Indexed: 11/09/2022] Open
Abstract
We aimed to describe the characteristics of adolescent pregnancy, determine its effect on adverse maternal and perinatal outcomes and explore whether that association varies with gestational age with the goal of proposing specific recommendations for adolescent health in China. This study included 2,366,559 women aged 10–24 years who had singleton pregnancies between 2012 and 2019 at 438 hospitals. Adolescent pregnancy was defined as younger than 20 years of age. We used multivariable logistic regression to estimate the effects. Women aged 20–24 years served as the reference group in all analyses. The proportion of rural girls with adolescent pregnancies rebounded after 2015 even though common-law marriage in rural areas decreased. Higher risks of eclampsia (adjusted odds ratio (aOR) 1.87, 95% confidence interval (CI) 1.57 ~ 2.23), severe anaemia (aOR 1.18, 95% CI 1.09 ~ 1.28), maternal near miss (MNM; aOR 1.24, 95% CI 1.12 ~ 1.37), and small for gestational age (SGA; aOR 1.30, 95% CI 1.28 ~ 1.33) were observed when gestational age was > 37 weeks. Adolescent pregnancy was independently associated with increased risks of other perinatal outcomes. Further implementation of pregnancy prevention strategies and improved health care interventions are needed to reduce adolescent pregnancies and prevent adverse fertility outcomes among adolescent women in China at a time when adolescent fertility rate is rebounding.
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Affiliation(s)
- Yanxia Xie
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China
| | - Xiaodong Wang
- Department of Obstetrics, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China
| | - Yi Mu
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China
| | - Zheng Liu
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China
| | - Yanping Wang
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China
| | - Xiaohong Li
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China
| | - Li Dai
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China.,Medical Big Data Center, Sichuan University, Chengdu, Sichuan, China
| | - Qi Li
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China
| | - Mingrong Li
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China
| | - Peiran Chen
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China
| | - Jun Zhu
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China. .,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China.
| | - Juan Liang
- National Office for Maternal and Child Health Surveillance of China, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China. .,Department of Obstetrics, West China Second University Hospital, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China.
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23
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Xia Y, Xiao J, Yu Y, Tseng WL, Lebowitz E, DeWan AT, Pedersen LH, Olsen J, Li J, Liew Z. Rates of Neuropsychiatric Disorders and Gestational Age at Birth in a Danish Population. JAMA Netw Open 2021; 4:e2114913. [PMID: 34185070 PMCID: PMC8243234 DOI: 10.1001/jamanetworkopen.2021.14913] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
IMPORTANCE Nonoptimal gestational durations could be associated with neurodevelopmental disabilities, yet evidence regarding finer classification of gestational age and rates of multiple major neuropsychiatric disorders beyond childhood is limited. OBJECTIVE To comprehensively evaluate associations between 6 gestational age groups and rates of 9 major types and 8 subtypes of childhood and adult-onset neuropsychiatric disorders. DESIGN, SETTING, AND PARTICIPANTS This cohort study evaluated data from a nationwide register of singleton births in Denmark from January 1, 1978, to December 31, 2016. Data analyses were conducted from October 1, 2019, through November 15, 2020. EXPOSURES Gestational age subgroups were classified according to data from the Danish Medical Birth Register: very preterm (20-31 completed weeks), moderately preterm (32-33 completed weeks), late preterm (34-36 completed weeks), early term (37-38 completed weeks), term (39-40 completed weeks, reference), and late or postterm (41-45 completed weeks). MAIN OUTCOMES AND MEASURES Neuropsychiatric diagnostic records (International Statistical Classification of Diseases and Related Health Problems, Tenth Revision codes F00-F99) were ascertained from the Danish Psychiatric Central Register up to August 10, 2017. Poisson regression was used to estimate the incidence rate ratio (IRR) and 95% CI for neuropsychiatric disorders, adjusting for selected sociodemographic factors. RESULTS Of all 2 327 639 singleton births studied (1 194 925 male newborns [51.3%]), 22 647 (1.0%) were born very preterm, 19 801 (0.9%) were born moderately preterm, 99 488 (4.3%) were born late preterm, 388 416 (16.7%) were born early term, 1 198 605 (51.5%) were born at term, and 598 682 (25.7%) were born late or postterm. A gradient of decreasing IRRs was found from very preterm to late preterm for having any or each of the 9 neuropsychiatric disorders (eg, very preterm: IRR, 1.49 [95% CI, 1.43-1.55]; moderately preterm: IRR, 1.23 [95% CI, 1.18-1.28]; late preterm: IRR, 1.17 [95% CI, 1.14-1.19] for any disorders) compared with term births. Individuals born early term had 7% higher rates (IRR, 1.07 [95% CI, 1.06-1.08]) for any neuropsychiatric diagnosis and a 31% higher rate for intellectual disability (IRR, 1.31 [95% CI, 1.25-1.37]) compared with those born at term. The late or postterm group had lower IRRs for most disorders, except pervasive developmental disorders, for which the rate was higher for postterm births compared with term births (IRR, 1.06 [95% CI, 1.03-1.09]). CONCLUSIONS AND RELEVANCE Higher incidences of all major neuropsychiatric disorders were observed across the spectrum of preterm births. Early term and late or postterm births might not share a homogeneous low risk with individuals born at term. These findings suggest that interventions that address perinatal factors associated with nonoptimal gestation might reduce long-term neuropsychiatric risks in the population.
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Affiliation(s)
- Yuntian Xia
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, Connecticut
| | - Jingyuan Xiao
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, Connecticut
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut
| | - Yongfu Yu
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, Shanghai, China
| | - Wan-Ling Tseng
- Yale Child Study Center, Yale School of Medicine, New Haven, Connecticut
| | - Eli Lebowitz
- Yale Child Study Center, Yale School of Medicine, New Haven, Connecticut
| | - Andrew Thomas DeWan
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, Connecticut
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, Connecticut
| | - Lars Henning Pedersen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Obstetrics & Gynecology, Aarhus University Hospital, Aarhus, Denmark
| | - Jørn Olsen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Jiong Li
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Zeyan Liew
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, Connecticut
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut
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24
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Kuusela P, Jacobsson B, Hagberg H, Fadl H, Lindgren P, Wesström J, Wennerholm UB, Valentin L. Second-trimester transvaginal ultrasound measurement of cervical length for prediction of preterm birth: a blinded prospective multicentre diagnostic accuracy study. BJOG 2020; 128:195-206. [PMID: 32964581 PMCID: PMC7821210 DOI: 10.1111/1471-0528.16519] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 08/21/2020] [Accepted: 09/07/2020] [Indexed: 11/28/2022]
Abstract
Objective To estimate the diagnostic performance of sonographic cervical length for the prediction of preterm birth (PTB). Design Prospective observational multicentre study. Setting Seven Swedish ultrasound centres. Sample A cohort of 11 456 asymptomatic women with a singleton pregnancy. Methods Cervical length was measured with transvaginal ultrasound at 18–20 weeks of gestation (C×1) and at 21–23 weeks of gestation (C×2, optional). Staff and participants were blinded to results. Main outcome measures Area under receiver operating characteristic curve (AUC), sensitivity, specificity, positive and negative predictive values (PPV and NPV), positive and negative likelihood ratios (LR+ and LR−), number of false‐positive results per true‐positive result (FP/TP), number needed to screen to detect one PTB (NNS) and prevalence of ‘short’ cervix. Results Spontaneous PTB (sPTB) at <33 weeks of gestation occurred in 56/11 072 (0.5%) women in the C×1 population (89% white) and in 26/6288 (0.4%) in the C×2 population (92% white). The discriminative ability of shortest endocervical length was better the earlier the sPTB occurred and was better at C×2 than at C×1 (AUC to predict sPTB at <33 weeks of gestation 0.76 versus 0.65, difference in AUC 0.11, 95% CI 0.01–0.23). At C×2, the shortest endocervical length of ≤25 mm (prevalence 4.4%) predicted sPTB at <33 weeks of gestation with sensitivity 38.5% (10/26), specificity 95.8% (5998/6262), PPV 3.6% (10/274), NPV 99.7% (5988/6014), LR+ 9.1, LR− 0.64, FP/TP 26 and NNS 629. Conclusions Second‐trimester sonographic cervical length can identify women at high risk of sPTB. In a population of mainly white women with a low prevalence of sPTB its diagnostic performance is at best moderate. Tweetable abstract Cervical length screening to predict preterm birth in a white low‐risk population has moderate performance. Cervical length screening to predict preterm birth in a white low‐risk population has moderate performance.
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Affiliation(s)
- P Kuusela
- Department of Obstetrics and Gynaecology, Centre of Perinatal Medicine and Health, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Södra Älvsborg Hospital, Borås, Sweden
| | - B Jacobsson
- Department of Obstetrics and Gynaecology, Centre of Perinatal Medicine and Health, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Obstetrics, Region Vastra Gotaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - H Hagberg
- Department of Obstetrics and Gynaecology, Centre of Perinatal Medicine and Health, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Obstetrics, Region Vastra Gotaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - H Fadl
- Department of Obstetrics and Gynaecology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - P Lindgren
- Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden.,Centre for Fetal Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - J Wesström
- Centre for Clinical Research Dalarna, Falun Hospital, Falun, Sweden
| | - U-B Wennerholm
- Department of Obstetrics and Gynaecology, Centre of Perinatal Medicine and Health, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Obstetrics, Region Vastra Gotaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - L Valentin
- Department of Obstetrics and Gynaecology, Skåne University Hospital, Malmö, Sweden.,Department of Medical Sciences Malmö, Lund University, Lund, Sweden
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25
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Bustamante Loyola J, Perez Retamal M, Morgues Nudman MI, Maturana A, Salinas Gonzalez R, Cox H, González Mas JM, Muñoz L, Lopez L, Mendiburo-Seguel A, Simó S, Palau Subiela P, Guedeney A. Interactive Guidance Intervention to Address Sustained Social Withdrawal in Preterm Infants in Chile: Protocol for a Randomized Controlled Trial. JMIR Res Protoc 2020; 9:e17943. [PMID: 32589156 PMCID: PMC7394375 DOI: 10.2196/17943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 05/21/2020] [Accepted: 05/27/2020] [Indexed: 11/29/2022] Open
Abstract
Background Preterm newborns can be exposed early to significant perinatal stress, and this stress can increase the risk of altered socioemotional development. Sustained social withdrawal in infants is an early indicator of emotional distress which is expressed by low reactivity to the environment, and if persistent, is frequently associated with altered psychological development. Infants born prematurely have a higher probability of developing sustained social withdrawal (adjusted odds ratio 1.84, 95% CI 1.04-3.26) than infants born full term, and there is a correlation between weight at birth and sustained social withdrawal at 12 months of age. Objective The aims of this study are to compare the effect of the interactive guidance intervention to that of routine pediatric care on sustained social withdrawal in infants born moderately or late preterm and to explore the relationship between sustained social withdrawal in these infants and factors such as neonatal intensive care unit hospitalization variables, parental depression, and posttraumatic stress symptoms. Methods This study is designed as a multicenter randomized controlled trial. Moderate and late preterm newborns and their parents were recruited and randomized (1:1 allocation ratio) to control and experimental groups. During neonatal intensive care unit hospitalization, daily duration of skin-to-skin contact, breastfeeding, and parental visits were recorded. Also, a daily score for neonatal pain and painful invasive procedures were recorded. After discharge from neonatal intensive care, for the duration of the study, both groups will attend follow-up consultations with neonatologists at 2, 6, and 12 months of age (corrected for gestational age) and will receive routine pediatric care. Every consultation will be recorded and assessed with the Alarm Distress Baby Scale to detect sustained social withdrawal (indicated by a score of 5 or higher). The neonatologists will perform an interactive guidance intervention if an infant in the intervention group exhibits sustained social withdrawal. In each follow-up consultation, parents will fill out the Edinburgh Postnatal Depression Scale, the modified Perinatal Posttraumatic Stress Disorder Questionnaire, and the Impact of Event Scale–revised. Results Recruitment for this trial started in September 2017. As of May 2020, we have completed enrollment (N=110 infants born moderately or late preterm). We aim to publish the results by mid-2021. Conclusions This is the first randomized controlled trial with a sample of infants born moderately or late preterm infants who will attend pediatric follow-up consultations during their first year (corrected for gestational age at birth) with neonatologists trained in the Alarm Distress Baby Scale and who will receive this interactive guidance intervention. If successful, this early intervention will show significant potential to be implemented in both public and private health care, given its low cost of training staff and that the intervention takes place during routine pediatric follow-up. Trial Registration ClinicalTrials.gov NCT03212547; https://clinicaltrials.gov/ct2/show/NCT03212547. International Registered Report Identifier (IRRID) DERR1-10.2196/17943
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Affiliation(s)
- Jorge Bustamante Loyola
- Neonatology Unit, Clinica Alemana de Santiago, Santiago, Chile.,Doctoral Programme in Clinical and Health Psychology, Universitat de Valencia, Valencia, Spain.,Spain Association for Infant Mental Health Since Gestation, Valencia, Spain.,Neonatology Unit, Hospital San Jose, Santiago, Chile
| | | | | | - Andres Maturana
- Neonatology Unit, Clinica Alemana de Santiago, Santiago, Chile.,Faculty Development Office, Universidad del Desarrollo, Santiago, Chile
| | | | - Horacio Cox
- Neonatology Unit, Clinica Alemana de Santiago, Santiago, Chile
| | | | - Lucia Muñoz
- Neonatology Unit, Hospital San Jose, Santiago, Chile
| | - Lilian Lopez
- Neonatology Unit, Hospital San Jose, Santiago, Chile
| | | | - Sandra Simó
- Faculty of Psychology, Universitat de Valencia, Valencia, Spain
| | | | - Antoine Guedeney
- Hospital Bichat Claude Bernard, Assistance Publique-Hôpitaux de Paris, Paris, France.,Université Paris Diderot, Paris 7, Paris, France
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26
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Hoffman MK, Goudar SS, Kodkany BS, Metgud M, Somannavar M, Okitawutshu J, Lokangaka A, Tshefu A, Bose CL, Mwapule A, Mwenechanya M, Chomba E, Carlo WA, Chicuy J, Figueroa L, Garces A, Krebs NF, Jessani S, Zehra F, Saleem S, Goldenberg RL, Kurhe K, Das P, Patel A, Hibberd PL, Achieng E, Nyongesa P, Esamai F, Liechty EA, Goco N, Hemingway-Foday J, Moore J, Nolen TL, McClure EM, Koso-Thomas M, Miodovnik M, Silver R, Derman RJ. Low-dose aspirin for the prevention of preterm delivery in nulliparous women with a singleton pregnancy (ASPIRIN): a randomised, double-blind, placebo-controlled trial. Lancet 2020; 395:285-293. [PMID: 31982074 PMCID: PMC7168353 DOI: 10.1016/s0140-6736(19)32973-3] [Citation(s) in RCA: 196] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND Preterm birth remains a common cause of neonatal mortality, with a disproportionately high burden in low-income and middle-income countries. Meta-analyses of low-dose aspirin to prevent pre-eclampsia suggest that the incidence of preterm birth might also be decreased, particularly if initiated before 16 weeks of gestation. METHODS ASPIRIN was a randomised, multicountry, double-masked, placebo-controlled trial of low-dose aspirin (81 mg daily) initiated between 6 weeks and 0 days of pregnancy, and 13 weeks and 6 days of pregnancy, in nulliparous women with an ultrasound confirming gestational age and a singleton viable pregnancy. Participants were enrolled at seven community sites in six countries (two sites in India and one site each in the Democratic Republic of the Congo, Guatemala, Kenya, Pakistan, and Zambia). Participants were randomly assigned (1:1, stratified by site) to receive aspirin or placebo tablets of identical appearance, via a sequence generated centrally by the data coordinating centre at Research Triangle Institute International (Research Triangle Park, NC, USA). Treatment was masked to research staff, health providers, and patients, and continued until 36 weeks and 7 days of gestation or delivery. The primary outcome of incidence of preterm birth, defined as the number of deliveries before 37 weeks' gestational age, was analysed in randomly assigned women with pregnancy outcomes at or after 20 weeks, according to a modified intention-to-treat (mITT) protocol. Analyses of our binary primary outcome involved a Cochran-Mantel-Haenszel test stratified by site, and generalised linear models to obtain relative risk (RR) estimates and associated confidence intervals. Serious adverse events were assessed in all women who received at least one dose of drug or placebo. This study is registered with ClinicalTrials.gov, NCT02409680, and the Clinical Trial Registry-India, CTRI/2016/05/006970. FINDINGS From March 23, 2016 to June 30, 2018, 14 361 women were screened for inclusion and 11 976 women aged 14-40 years were randomly assigned to receive low-dose aspirin (5990 women) or placebo (5986 women). 5780 women in the aspirin group and 5764 in the placebo group were evaluable for the primary outcome. Preterm birth before 37 weeks occurred in 668 (11·6%) of the women who took aspirin and 754 (13·1%) of those who took placebo (RR 0·89 [95% CI 0·81 to 0·98], p=0·012). In women taking aspirin, we also observed significant reductions in perinatal mortality (0·86 [0·73-1·00], p=0·048), fetal loss (infant death after 16 weeks' gestation and before 7 days post partum; 0·86 [0·74-1·00], p=0·039), early preterm delivery (<34 weeks; 0·75 [0·61-0·93], p=0·039), and the incidence of women who delivered before 34 weeks with hypertensive disorders of pregnancy (0·38 [0·17-0·85], p=0·015). Other adverse maternal and neonatal events were similar between the two groups. INTERPRETATION In populations of nulliparous women with singleton pregnancies from low-income and middle-income countries, low-dose aspirin initiated between 6 weeks and 0 days of gestation and 13 weeks and 6 days of gestation resulted in a reduced incidence of preterm delivery before 37 weeks, and reduced perinatal mortality. FUNDING Eunice Kennedy Shriver National Institute of Child Health and Human Development.
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Affiliation(s)
- Matthew K Hoffman
- Department of Obstetrics and Gynecology, Christiana Care, Newark, DE, USA.
| | | | | | | | | | - Jean Okitawutshu
- Kinshasa School of Public Health, Kinshasa, Democratic Republic of the Congo
| | - Adrien Lokangaka
- Kinshasa School of Public Health, Kinshasa, Democratic Republic of the Congo
| | - Antoinette Tshefu
- Kinshasa School of Public Health, Kinshasa, Democratic Republic of the Congo
| | - Carl L Bose
- University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | | | | | | | - Javier Chicuy
- Instituto de Nutrición de Centro América y Panamá, Guatemala City, Guatemala
| | - Lester Figueroa
- Instituto de Nutrición de Centro América y Panamá, Guatemala City, Guatemala
| | - Ana Garces
- Instituto de Nutrición de Centro América y Panamá, Guatemala City, Guatemala
| | | | | | | | | | | | - Kunal Kurhe
- Lata Medical Research Foundation, Nagpur, India
| | - Prabir Das
- Lata Medical Research Foundation, Nagpur, India
| | | | | | - Emmah Achieng
- Department of Child Health and Paediatrics, Moi University School of Medicine, Eldoret, Kenya
| | - Paul Nyongesa
- Department of Child Health and Paediatrics, Moi University School of Medicine, Eldoret, Kenya
| | - Fabian Esamai
- Department of Child Health and Paediatrics, Moi University School of Medicine, Eldoret, Kenya
| | | | - Norman Goco
- RTI International, Research Triangle Park, NC, USA
| | | | - Janet Moore
- RTI International, Research Triangle Park, NC, USA
| | | | | | - Marion Koso-Thomas
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Menachem Miodovnik
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - R Silver
- University of Utah, Salt Lake City, UT, USA
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Yan S, Kwan YH, Thumboo J, Low LL. Characteristics and Health Care Utilization of Different Segments of a Multiethnic Asian Population in Singapore. JAMA Netw Open 2019; 2:e1910878. [PMID: 31490539 PMCID: PMC6735407 DOI: 10.1001/jamanetworkopen.2019.10878] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
IMPORTANCE Descriptive population-level health data are critical components of the evidence base for population health policy. Human populations often display marked heterogeneity in their health status among subgroups of the population. The recent widespread adoption of electronic health records provides opportunities to use routine real-world health care data to examine population health. OBJECTIVE To report population sociodemographic characteristics, health conditions, health care utilization, and health care costs for different population segments of a multiethnic Asian population divided according to a modified British Columbia Population Segmentation Framework. DESIGN, SETTING, AND PARTICIPANTS This population-based cross-sectional study used 2016 data from the Singapore Eastern Regional Health System, the largest Regional Health System in Singapore. Data were obtained from deidentified national-level electronic health records at the Ministry of Health Singapore. Participants included all residents in the Singapore Eastern Regional Health System catchment area in 2016. The descriptive analysis was conducted in August 2018. MAIN OUTCOMES AND MEASURES Socioeconomic profiles, disease prevalence, health care utilization, and cost patterns of population segments. RESULTS The total size of the study population in 2016 was 1 181 024 residents (576 663 [48.83%] male; median [interquartile range] age, 40 [22-57] years). The population was divided into 8 segments: healthy with no outpatient utilization (493 483 residents), healthy with outpatient utilization (259 909 residents), healthy with inpatient admissions (49 588 residents), low complex (215 134 residents), medium complex (79 350 residents), high complex (44 445 residents), cancer (34 217 residents), and end of life (4898 residents). Overall, the 3 most prevalent conditions were chronic kidney disease (31.89%), hypertension (18.52%), and lipid disorders (18.33%). Distributions of chronic conditions differed across the segments. Different segments had varying health care utilization patterns: the high-complex segment had the highest number of primary care clinic visits (mean [SD], 4.25 [5.46] visits), the cancer segment had the highest number of specialist outpatient clinic visits (mean [SD], 5.55 [8.49] visits), and the end-of-life segment had the highest numbers of accident and emergency department visits (mean [SD], 1.80 [1.88] visits) and inpatient admissions (mean [SD], 1.99 [1.89] admissions) during 2016. For health care costs, specialist outpatient clinic and inpatient care together made up more than 85% of the total cost of nearly 2 billion Singapore dollars. The end-of-life segment contributed approximately 50% of the health care cost per capita of 60 000 Singapore dollars. CONCLUSIONS AND RELEVANCE Different population segments displayed heterogeneity in sociodemographic characteristics, health conditions, health care utilization, and health care cost patterns. This critical health information can be used as baseline data to inform regional and national health priorities for health services research and policy.
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Affiliation(s)
- Shi Yan
- Family Medicine Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Yu Heng Kwan
- Program in Health Services and Systems Research, Duke-NUS Medical School, Singapore
| | - Julian Thumboo
- Department of Rheumatology and Immunology, Singapore General Hospital, Singapore, Bukit, Singapore
| | - Lian Leng Low
- Department of Family Medicine and Continuing Care, Singapore General Hospital, Bukit, Singapore
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28
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Affiliation(s)
- Dieter Wolke
- Department of Psychology, University of Warwick, Warwickshire, United Kingdom
- Division of Health Sciences, Warwick Medical School, Warwickshire, United Kingdom
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