Document Detail

Income inequality and pregnancy spacing.
MedLine Citation:
PMID:  15210085     Owner:  NLM     Status:  MEDLINE    
We examined the relationship between county-level income inequality and pregnancy spacing in a welfare-recipient cohort in Washington State. We identified 20,028 welfare-recipient women who had at least one birth between July 1, 1992, and December 31, 1999, and followed this cohort from the date of that first in-study birth until the occurrence of a subsequent pregnancy or the end of the study period. Income inequality was measured as the proportion of total county income earned by the wealthiest 10% of households in that county compared to that earned by the poorest 10%. To measure the relationship between income inequality and the time-dependent risk (hazard) of a subsequent pregnancy, we used Cox proportional hazards methods and adjusted for individual- and county-level covariates. Among women aged 25 and younger at the time of the index birth, the hazard ratio (HR) of subsequent pregnancy associated with income inequality was 1.24 (95% CI: 0.85, 1.80), controlling for individual-level (age, marital status, education at index birth; race, parity) and community-level variables. Among women aged 26 or older at the time of the index birth, the adjusted HR was 2.14 (95% CI: 1.09, 4.18). While income inequality is not the only community-level feature that may affect health, among women aged 26 or older at the index birth it appears to be associated with hazard of a subsequent pregnancy, even after controlling for other factors. These results support previous findings that income inequality may impact health, perhaps by influencing health-related behaviors.
R Gold; Frederick A Connell; Patrick Heagerty; Stephen Bezruchka; Robert Davis; Mary Lawrence Cawthon
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Social science & medicine (1982)     Volume:  59     ISSN:  0277-9536     ISO Abbreviation:  Soc Sci Med     Publication Date:  2004 Sep 
Date Detail:
Created Date:  2004-06-22     Completed Date:  2004-10-08     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8303205     Medline TA:  Soc Sci Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  1117-26     Citation Subset:  IM    
Copyright Information:
Copyright 2004 Elseiver Ltd.
Kaiser Permanente, 3800 N Interstate Avenue, Portland, OR 97227-1110, USA.
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MeSH Terms
Birth Intervals*
Case-Control Studies
Proportional Hazards Models
Survival Analysis

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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