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Liu K, Kouis P, Nikolopoulos G, Kyprianou T, Nikolaidis K, Scoutellas V, Filippos T, Koutrakis P, Yiallouros P, Papatheodorou S. Ambient climatic factors and term birthweight: A study of critical windows of exposure in the Republic of Cyprus. ENVIRONMENTAL RESEARCH 2023; 237:116885. [PMID: 37607623 PMCID: PMC10592069 DOI: 10.1016/j.envres.2023.116885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/18/2023] [Accepted: 08/12/2023] [Indexed: 08/24/2023]
Abstract
BACKGROUND Reduced birthweight is associated with adverse perinatal and long-term outcomes. A few studies examined the association between climatic factors and birthweight with inconsistent results probably due to differences in exposure assessment, statistical models, climatic parameters, and study populations. METHODS We obtained data from the Republic of Cyprus birth registry from 2007 to 2020, and matched climatic exposures (i.e., temperature, relative humidity, temperature variability, humidity variability) by the hospital district at birth. We used distributed lag models to examine the association between term birthweight, temperature, humidity, and their variability to identify critical windows. Our models were adjusted for coarse particulate matter level (≤10 μm [PM10), and individual-level covariates. Subgroup analysis was conducted to examine effect modification by maternal age and education. RESULTS We identified two critical windows of exposure to ambient temperature at early and late pregnancy. The cumulative change of birthweight per 5 °C increases in mean weekly temperature was -57.27 (2%) (95% Confidence Interval [CI]: 99.62 (3.1%), -14.92 (0.5%)) and -79.2 (2.5%) (95%CI: 117.03 (3.5%), -41.52 (1.3%)) grams during weeks 1-8 and weeks 28-37, respectively. There was no significant effect of humidity, temperature variability, or humidity variability on birthweight. Based on subgroup analysis, mothers with post-secondary education were more sensitive to temperature, but the marginal significance of differences in effect estimates may be linked with differences in sample size. CONCLUSION Our study suggests that higher ambient temperature exposure during early and late pregnancy is associated with lower birthweight in main and subgroup analysis. The findings demonstrate in a country highly impacted by climate change like Cyprus that rising temperatures may be associated with perinatal outcomes in susceptible populations during sensitive windows of exposure.
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Affiliation(s)
- Kuangyliu Liu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, USA.
| | - Panayiotis Kouis
- Respiratory Physiology Laboratory, Medical School, University of Cyprus, Cyprus.
| | | | | | - Kleanthis Nikolaidis
- Department of Meteorology, Cyprus Ministry of Agriculture, Rural Development and Environment, Cyprus
| | | | - Tymvios Filippos
- Department of Meteorology, Cyprus Ministry of Agriculture, Rural Development and Environment, Cyprus.
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, USA
| | | | - Stefania Papatheodorou
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, USA.
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Hochberg A, Amikam U, Krispin E, Wiznitzer A, Hadar E, Salman L. Maternal and neonatal outcomes following induction of labor for fetal growth restriction: Extra-amniotic balloon versus prostaglandins. Int J Gynaecol Obstet 2023; 160:678-684. [PMID: 35809083 DOI: 10.1002/ijgo.14338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 06/10/2022] [Accepted: 07/07/2022] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To compare perinatal outcomes in pregnancies with fetal growth restriction (FGR) undergoing induction of labor by extra-amniotic balloon (EAB) versus prostaglandin E2 (PGE2 ). METHODS A retrospective cohort study of women with singleton pregnancies and FGR, undergoing induction at term via EAB, PGE2 , or both, at a single medical center (2014-2017). Primary outcome was rate of cesarean deliveries (CDs). Secondary outcomes included composite maternal and neonatal outcomes. RESULTS Overall, 266 women met the inclusion criteria. Among them, 131 (49.2%) underwent induction by PGE2 , 116 (43.6%) by EAB, and 19 (7.14%) by both methods. No differences were noted in baseline characteristics. Rate of CD (17.24% vs. 6.11% vs. 10.53%, P = 0.022) and maternal composite outcome (18.97% vs. 6.11% vs. 10.53%, P < 0.01) were higher among women who underwent induction by EAB compared with PGE2 or both. No difference was noted between groups in neonatal outcomes. In a multivariable logistic regression, rates of cesarean delivery and composite maternal outcome were no longer higher in the EAB group (adjusted odds ratio [aOR] 1.68, 95% confidence interval [CI] 0.68-4.16, P = 0.260; and aOR 1.94, 95% CI 0.84-4.45, P = 0.120, respectively). CONCLUSION EAB and PGE2 have comparable maternal and neonatal outcomes when used for induction of labor due to FGR.
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Affiliation(s)
- Alyssa Hochberg
- Helen Schneider Hospital for Women, Rabin Medical Center, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Uri Amikam
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Lis Maternity Hospital, Sourasky Medical Center, Tel Aviv, Israel
| | - Eyal Krispin
- Helen Schneider Hospital for Women, Rabin Medical Center, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Arnon Wiznitzer
- Helen Schneider Hospital for Women, Rabin Medical Center, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eran Hadar
- Helen Schneider Hospital for Women, Rabin Medical Center, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Lina Salman
- Helen Schneider Hospital for Women, Rabin Medical Center, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Li H, Miao C, Liu W, Gao H, Li W, Wu Z, Cao H, Zhu Y. First-Trimester Triglyceride-Glucose Index and Risk of Pregnancy-Related Complications: A Prospective Birth Cohort Study in Southeast China. Diabetes Metab Syndr Obes 2022; 15:3705-3715. [PMID: 36465992 PMCID: PMC9717426 DOI: 10.2147/dmso.s378964] [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: 06/30/2022] [Accepted: 10/01/2022] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To evaluate the relationships of the triglyceride-glucose (TyG) index with pregnancy-related complications (PRCs) and to clarify the predictability of the TyG index for PRCs. PATIENTS AND METHODS Totally of 11,387 women with a singleton pregnancy were prospectively followed until after delivery. Maternal fasting lipids and glucose concentration were measured in the first trimester (11 weeks gestation on average). The TyG index was calculated as ln [triglyceride (mg/dL) × fasting plasma glucose (mg/dL)/2]. We used generalized linear models to calculate the relative risks and 95% confidence intervals. Receiver-operating characteristic curve analysis was employed to assess the ability of the TyG index to predict the risks of PRCs. RESULTS Smooth spline reveals that the probability of gestational diabetes mellitus (GDM) is intensified with the increasing TyG index. Multivariate logistic regression adjusted for risk factors demonstrates a 1-unit and a 1-SD increment in the TyG index raises the risk of GDM by 3.63 and 1.57 times, respectively. Identically, the risk of GDM maximizes in the TyG quintile 5 (OR: 3.14; 95% CI: 2.55~3.85) relative to the lowest TyG index group. However, no association between TyG index and the risk of other PRCs was observed after full adjustment. The area under receiver operating characteristic curves is 0.647 (95% CI: 0.632-0.66) for GDM, and the optimal predictive cut-off is 8.55, with a specificity of 0.679 and sensitivity of 0.535. CONCLUSION The first-trimester TyG index is significantly associated with the risk of incident GDM, while the relationships between the TyG index and other PRCs need further exploration.
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Affiliation(s)
- Haibo Li
- Division of Birth Cohort Study, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, People’s Republic of China
| | - Chong Miao
- Department of Information, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, People’s Republic of China
| | - Wenjuan Liu
- Division of Birth Cohort Study, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, People’s Republic of China
- Division of Birth Cohort Study, Fujian Children’s Hospital, Fuzhou, People’s Republic of China
| | - Haiyan Gao
- Division of Birth Cohort Study, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, People’s Republic of China
- Division of Birth Cohort Study, Fujian Obstetrics and Gynecology Hospital, Fuzhou, People’s Republic of China
| | - Wei Li
- Division of Birth Cohort Study, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, People’s Republic of China
- Division of Birth Cohort Study, Fujian Obstetrics and Gynecology Hospital, Fuzhou, People’s Republic of China
| | - Zhengqin Wu
- Division of Birth Cohort Study, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, People’s Republic of China
- Division of Birth Cohort Study, Fujian Obstetrics and Gynecology Hospital, Fuzhou, People’s Republic of China
| | - Hua Cao
- Division of Birth Cohort Study, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, People’s Republic of China
- Fujian Key Laboratory of Women and Children’s Critical Disease Research, Fuzhou, People’s Republic of China
- Hua Cao, Department of Cardiac Surgery, Fujian Maternity and Child Health Hospital, Fuzhou, 350001, People’s Republic of China, Tel +86-0591-87562990, Fax +86-0591-87505886, Email
| | - Yibing Zhu
- Division of Birth Cohort Study, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, People’s Republic of China
- Correspondence: Yibing Zhu, Division of Birth Cohort Study, Fujian Maternity and Child Health Hospital, Fuzhou, 350001, People’s Republic of China, Tel +86-0591-87560934, Fax +86-0591-87505886, Email
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