Published Online
on August 28, 2006

A more recent version of this article appeared on October 1, 2006

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Submitted on May 17, 2006
Revised on June 11, 2006

Work Hours and Self-Reported Hypertension Among Working People in California

Haiou Yang^*; Peter L. Schnall; Maritza Jauregui; Ta-Chen Su; and Dean Baker

From the Center for Occupational and Environmental Health (H.Y., P.L.S., M.J., D.B.), University of California, Irvine, Calif; and the Departments of Internal Medicine and Environmental and Occupational Medicine (T.-C.S.), National Taiwan University Hospital, Taiwan.

^* To whom correspondence should be addressed. E-mail: hyang{at}uci.edu.

Abstract--Among the risk factors for hypertension, stress, especially work stress, has drawn increasing attention. Another potential work-related risk factor for hypertension identified in the past few years is work hours. This article presents an analysis of work hours and self-reported hypertension among the working population in the state of California. The data set used for this study comes from the Public Use File of the 2001 California Health Interview Survey. The logistic regression analysis shows a positive association between hours worked per week and likelihood of having self-reported hypertension. Compared with those working between 11 and 39 hours per week, individuals working 40 hours per week were 14% (95% CI: 1.01 to 1.28) more likely to report hypertension, those who worked between 41 and 50 hours per week were 17% (95% CI: 1.04 to 1.33) more likely to report hypertension, and those who worked 51 hours per week were 29% (95% CI: 1.10 to 1.52) more likely to report hypertension after controlling for various potentially confounding variables, including demographic and biological risk factors and socioeconomic status. This analysis provides evidence of a positive association between work hours and hypertension in the California working population.

Key words: occupations • risk factors • behavior • hypertension, chronic

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