Document Detail

The association between blood pressure and years of schooling versus educational credentials: test of the sheepskin effect.
MedLine Citation:
PMID:  21184953     Owner:  NLM     Status:  In-Process    
PURPOSE: Attaining a degree may offer greater opportunities for health than years of schooling alone. This study examines whether there is a degree, or "sheepskin," effect on the association between education and blood pressure.
METHODS: Multivariable-adjusted ordinal and linear regression models assessed associations of years of schooling and degree attainment with systolic and diastolic blood pressure in a sample of 552 adults ages 38 to 47 years.
RESULTS: Years of schooling was inversely associated with systolic blood pressure adjusting for age, gender and race (β = -0.4, 95% confidence limit: -0.7, -0.1 mmHg systolic blood pressure/year of schooling). Additional adjustment for mother's education, childhood verbal intelligence quotient, childhood health, and childhood socioeconomic status had minimal impact on effect size (β = -0.3, 95% confidence limit = -0.7, 0.0). However, years of schooling was no longer associated with blood pressure in the fully adjusted model which included additional adjustment for degree attained (β = 0.0, 95% confidence limit: -0.5, 0.4). In the fully adjusted model (including adjustment for years of schooling), individuals with a graduate degree still had significantly lower systolic blood pressure than HS degree-holders (e.g., β = -9.2, 95% confidence limit: -15.2, -3.2 for graduate vs high school degree). Findings were similar for diastolic blood pressure.
CONCLUSIONS: The association of years of schooling with blood pressure may be largely due to degree attainment rather than simply the knowledge and skills accumulated due to years of schooling alone.
Sze Yan Liu; Stephen L Buka; Crystal D Linkletter; Ichiro Kawachi; Laura Kubzansky; Eric B Loucks
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Annals of epidemiology     Volume:  21     ISSN:  1873-2585     ISO Abbreviation:  Ann Epidemiol     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2010-12-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9100013     Medline TA:  Ann Epidemiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  128-38     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Department of Community Health, Brown Medical School, Providence, RI, USA.
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