scholarly journals Associations between high temperatures in pregnancy and risk of preterm birth, low birth weight, and stillbirths: systematic review and meta-analysis

BMJ ◽  
2020 ◽  
pp. m3811
Author(s):  
Matthew Francis Chersich ◽  
Minh Duc Pham ◽  
Ashtyn Areal ◽  
Marjan Mosalam Haghighi ◽  
Albert Manyuchi ◽  
...  
Keyword(s):  
Systematic Review ◽  
Birth Weight ◽  
Preterm Birth ◽  
Low Birth Weight ◽  
Random Effects ◽  
High Temperatures ◽  
Meta Analysis ◽  
Middle Income ◽  
Statistical Heterogeneity ◽  
In Pregnancy

Abstract Objective To assess whether exposure to high temperatures in pregnancy is associated with increased risk for preterm birth, low birth weight, and stillbirth. Design Systematic review and random effects meta-analysis. Data sources Medline and Web of Science searched up to September 2018, updated in August 2019. Eligibility criteria for selecting studies Clinical studies on associations between high environmental temperatures, and preterm birth, birth weight, and stillbirths. Results 14 880 records and 175 full text articles were screened. 70 studies were included, set in 27 countries, seven of which were countries with low or middle income. In 40 of 47 studies, preterm births were more common at higher than lower temperatures. Exposures were classified as heatwaves, 1°C increments, and temperature threshold cutoff points. In random effects meta-analysis, odds of a preterm birth rose 1.05-fold (95% confidence interval 1.03 to 1.07) per 1°C increase in temperature and 1.16-fold (1.10 to 1.23) during heatwaves. Higher temperature was associated with reduced birth weight in 18 of 28 studies, with considerable statistical heterogeneity. Eight studies on stillbirths all showed associations between temperature and stillbirth, with stillbirths increasing 1.05-fold (1.01 to 1.08) per 1°C rise in temperature. Associations between temperature and outcomes were largest among women in lower socioeconomic groups and at age extremes. The multiple temperature metrics and lag analyses limited comparison between studies and settings. Conclusions Although summary effect sizes are relatively small, heat exposures are common and the outcomes are important determinants of population health. Linkages between socioeconomic status and study outcomes suggest that risks might be largest in low and middle income countries. Temperature rises with global warming could have major implications for child health. Systematic review registration PROSPERO CRD 42019140136 and CRD 42018118113.

Efficacy of additional psychosocial intervention in reducing low birth weight and preterm birth in teenage pregnancy: A systematic review and meta-analysis

2015 ◽  
Vol 44 ◽  
pp. 106-116 ◽  
Author(s):  
Kanokporn Sukhato ◽  
Chathaya Wongrathanandha ◽  
Ammarin Thakkinstian ◽  
Alan Dellow ◽  
Pornpot Horsuwansak ◽  
...  
Keyword(s):  
Systematic Review ◽  
Birth Weight ◽  
Preterm Birth ◽  
Low Birth Weight ◽  
Psychosocial Intervention ◽  
Teenage Pregnancy ◽  
Meta Analysis

scholarly journals A meta-analysis of the relationship between antidepressant use in pregnancy and the risk of preterm birth and low birth weight

2014 ◽  
Vol 36 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Hsiang Huang ◽  
Shane Coleman ◽  
Jeffrey A. Bridge ◽  
Kimberly Yonkers ◽  
Wayne Katon
Keyword(s):  
Birth Weight ◽  
Preterm Birth ◽  
Low Birth Weight ◽  
Meta Analysis ◽  
Antidepressant Use ◽  
The Relationship ◽  
In Pregnancy

scholarly journals Validity of recalled v. recorded birth weight: a systematic review and meta-analysis

2016 ◽  
Vol 8 (2) ◽  
pp. 137-148 ◽  
Author(s):  
S. D. Shenkin ◽  
M. G. Zhang ◽  
G. Der ◽  
S. Mathur ◽  
T. H. Mina ◽  
...  
Keyword(s):  
Systematic Review ◽  
Birth Weight ◽  
Random Effects ◽  
Meta Analysis ◽  
Epidemiological Studies ◽  
Clinical Population ◽  
Small Range ◽  
Qualitative Synthesis ◽  
Middle Income ◽  
Meta Analyses

Low birth weight is associated with adverse health outcomes. If birth weight records are not available, studies may use recalled birth weight. It is unclear whether this is reliable. We performed a systematic review and meta-analysis of studies comparing recalled with recorded birth weights. We followed the Meta-Analyses of Observational Studies in Epidemiology (MOOSE) statement and Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We searched MEDLINE, EMBASE and Cumulative Index to Nursing and Allied Health Literature (CINAHL) to May 2015. We included studies that reported recalled birth weight and recorded birth weight. We excluded studies investigating a clinical population. Two reviewers independently reviewed citations, extracted data, assessed risk of bias. Data were pooled in a random effects meta-analysis for correlation and mean difference. In total, 40 studies were eligible for qualitative synthesis (n=78,997 births from 78,196 parents). Agreement between recalled and recorded birth weight was high: pooled estimate of correlation in 23 samples from 19 studies (n=7406) was 0.90 [95% confidence interval (CI) 0.87–0.93]. The difference between recalled and recorded birth weight in 29 samples from 26 studies (n=29,293) was small [range −86–129 g; random effects estimate 1.4 g (95% CI −4.0–6.9 g)]. Studies were heterogeneous, with no evidence for an effect of time since birth, person reporting, recall bias, or birth order. In post-hoc subgroup analysis, recall was higher than recorded birth weight by 80 g (95% CI 57–103 g) in low and middle income countries. In conclusion, there is high agreement between recalled and recorded birth weight. If birth weight is recalled, it is suitable for use in epidemiological studies, at least in high income countries.

scholarly journals The Relationship between Maternal Personality Disorder and Early Birth Outcomes: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 17 (16) ◽  
pp. 5778
Author(s):  
Claire A. Marshall ◽  
Julie Jomeen ◽  
Chao Huang ◽  
Colin R. Martin
Keyword(s):  
Systematic Review ◽  
Birth Weight ◽  
Preterm Birth ◽  
Personality Disorder ◽  
Low Birth Weight ◽  
Apgar Score ◽  
Meta Analysis ◽  
Child Outcomes ◽  
Significant Risk ◽  
Everyday Functioning

(1) Background: Women with personality disorder are at risk of social and emotional problems which impact deleteriously on everyday functioning. Moreover, a personality disorder diagnosis has been established to have an adverse impact upon pregnancy outcomes and child health. Understanding this impact is critical to improving both maternal and child outcomes. This systematic review and meta-analysis will evaluate the contemporary evidence regarding these relationships. (2) Methods: Prospero and Cochrane were searched for any systematic reviews already completed on this topic. Academic Search Premier, CINAHL Complete, MEDLINE, PsycARTICLES, PsycINFO via the EBSCO host, and the Web of Science Core Collection were searched to include research articles published between 1980 and 2019. A total of 158 records were identified; 105 records were screened by reviewing the abstract; 99 records were excluded; 6 full text articles were assessed for eligibility; 5 records were included in the review. (3) Results: All the included studies reported on preterm birth. The meta-analysis indicates significant risk of preterm birth in women with personality disorder (overall odds ratio (OR) 2.62; CI 2.24–3.06; p < 0.01). Three studies reported on low birth weight, with the meta-analysis indicating a raised risk of low birth weight of the babies born to women with personality disorder (overall OR 2.00 CI 1.12–3.57 (p = 0.02)). Three studies reported on appearance, pulse, grimace, activity, and respiration (APGAR) score, with the meta-analysis of OR’s indicating a risk of low APGAR score in women with personality disorder (overall OR 2.31; CI 1.17–4.55; p = 0.02). (4) Conclusions: The infants of women with personality disorder are at elevated risk of preterm birth, low birth weight and low APGAR score.

scholarly journals Periodontal disease treatment and risk of preterm birth: a systematic review and meta-analysis

2012 ◽  
Vol 28 (10) ◽  
pp. 1823-1833 ◽  
Author(s):  
Maria Inês da Rosa ◽  
Patrícia Duarte Simões Pires ◽  
Lidia Rosi Medeiros ◽  
Maria Isabel Edelweiss ◽  
Jeovany Martínez-Mesa
Keyword(s):  
Systematic Review ◽  
Birth Weight ◽  
Preterm Birth ◽  
Low Birth Weight ◽  
Periodontal Disease ◽  
Randomized Trials ◽  
Meta Analysis ◽  
Preterm Births ◽  
Disease Treatment ◽  
Quantitative Systematic Review

The events leading to preterm birth are still not completely understood. A quantitative systematic review was performed to estimate the effects of periodontal care during pregnancy on preventing preterm birth and low birth weight. The meta-analysis included randomized trials with pregnant women with a diagnosis of periodontal disease before 20 weeks of gestation. Relative risk (RR) with 95% confidence intervals (95%CI) was calculated. We evaluated the reduction in preterm and low birth weight. Thirteen trials were included, comparing 3,576 women in intervention groups with 3,412 women receiving usual care. The meta-analysis of the effects of periodontal disease treatment during pregnancy indicated a non-significant reduction in preterm births (RR = 0.90; 95%CI: 0.68-1.19) and low birth weights (RR = 0.92; 95%CI: 0.71-1.20). The creation and examination of a funnel plot revealed clear evidence of publication bias. In summary, primary periodontal care during pregnancy cannot be considered an efficient way of reducing the incidence of preterm birth.

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