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Association between cocaine abuse in pregnancy and placenta-associated syndromes using propensity score matching approach.
MedLine Citation:
PMID:  21975278     Owner:  NLM     Status:  Publisher    
AIMS: We used propensity scores matching techniques to assess the association between maternal cocaine abuse in pregnancy and the occurrence of placenta-associated syndromes (PAS). STUDY DESIGN: Mothers who abused cocaine (n=5026) were matched to controls (n=5026) from a sample of 1,693,197, unexposed mothers in Florida from 1998 to 2007. Cocaine abuse was identified using the ICD-9 principal and secondary diagnosis codes (304.2 for cocaine dependence and 305.6 for cocaine abuse). The outcome of interest, PAS, was identified as any indication in diagnosis field of ICD-9-CM codes for: placental abruption (641.2), oligohydramnios (658.0), placental infarction (656.7, 656.8, 656.9), gestational hypertension (642.3, 642.9), preeclampsia (642.4, 642.5, and 642.7) or eclampsia (642.6). RESULTS: Nearly 6% of mothers in the study sample experienced a condition associated with PAS prior to matching. Women who abused cocaine were 58% more likely to have PAS when compared to women who did not (OR=1.48, 95% confidence interval: 1.33, 1.66). Women who abused cocaine were at elevated odds for placental abruption, placenta infarction and preeclampsia with the most pronounced odds noted for placental abruption (OR=2.79, 95% confidence interval: 2.19, 3.55). CONCLUSIONS: These findings indicate that cocaine abuse during pregnancy is associated with more placenta-related disorders than previously reported.
Alfred K Mbah; Amina P Alio; Doris W Fombo; Karen Bruder; Getachew Dagne; Hamisu M Salihu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-3
Journal Detail:
Title:  Early human development     Volume:  -     ISSN:  1872-6232     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Published by Elsevier Ireland Ltd.
Department of Epidemiology and Biostatistics, University of South Florida, Tampa, FL 33612, United States.
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