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Intention to become pregnant and low birth weight and preterm birth: a systematic review.
MedLine Citation:
PMID:  20012348     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Increased stress, psychosocial problems, economic disadvantages, and lack of prenatal care are proposed to explain discrepancies in the outcome of unintended pregnancies. Studies of maternal intention and pregnancy outcomes have yielded varied results. Objective is to review studies of the risk of low birth weight (LBW)/preterm births (PTB) associated with unintended pregnancies ending in a live birth. We reviewed studies reporting on maternal intentions and outcomes from Medline, Embase, CINAHL, and bibliographies of identified articles. An unintended pregnancy was further classified as mistimed (not intended at that time) or unwanted (not desired at any time). Studies reporting an association between pregnancy intention and any of the outcomes were included. Study quality was assessed for biases in selection, exposure assessment, confounder adjustment, analyses, outcomes assessment, and attrition. Unadjusted and adjusted data from included studies were extracted by two reviewers. There were significantly increased odds of LBW among unintended pregnancies [odds ratio (OR) 1.36, 95% confidence interval (CI) 1.25, 1.48] ending in a live birth. Within the unintended category, mistimed (OR 1.31, 95% CI 1.13, 1.52) and unwanted (OR 1.51, 95% CI 1.29, 1.78) pregnancies were associated with LBW. There were statistically significantly increased odds of PTB among unintended (OR 1.31, 95% CI 1.09, 1.58), and unwanted (OR 1.50, 95% CI 1.41, 1.61) but not for mistimed (OR 1.36, 95% CI 0.96, 1.93) pregnancies. Unintended, unwanted, and mistimed pregnancies ending in a live birth are associated with a significantly increased risk of LBW and PTB.
Authors:
Prakesh S Shah; Taiba Balkhair; Arne Ohlsson; Joseph Beyene; Fran Scott; Corine Frick
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Maternal and child health journal     Volume:  15     ISSN:  1573-6628     ISO Abbreviation:  Matern Child Health J     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9715672     Medline TA:  Matern Child Health J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  205-16     Citation Subset:  IM    
Affiliation:
Department of Paediatrics, Mount Sinai Hospital, 775A-600 University Avenue, Toronto, ON, M5G 1X5, Canada, pshah@mtsinai.on.ca.
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