Journal Article

Social Integration and Mortality: A Prospective Study of French Employees of Electricity of France–Gas of France

Lisa F. Berkman, Maria Melchior, Jean-François Chastang, Isabelle Niedhammer, Annette Leclerc and Marcel Goldberg

in American Journal of Epidemiology

Published on behalf of Johns Hopkins Bloomberg School of Public Health

Volume 159, issue 2, pages 167-174
Published in print January 2004 | ISSN: 0002-9262
Published online January 2004 | e-ISSN: 1476-6256 | DOI: http://dx.doi.org/10.1093/aje/kwh020
Social Integration and Mortality: A Prospective Study of French Employees of Electricity of France–Gas of France

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The authors investigated associations between social integration and all-cause and cause-specific mortality among French employees of Electricity of France–Gas of France. A total of 12,347 men aged 40–50 years in 1989 and 4,352 women aged 35–50 years in 1989 comprised the sample. In age-adjusted survival analyses for all causes of death, men who were least socially integrated were 4.42 times as likely to die during follow-up (1993–1999) as those with the highest level of integration (p < 0.0001). After adjustment for age, occupation, smoking, alcohol consumption, body mass index, self-reported health, depressive symptoms, and region of France, relative risks for men ranging from the least socially integrated to the most socially integrated were 2.70 (95% confidence interval (CI): 1.17, 6.23), 1.95 (95% CI: 1.25, 3.04), and 1.37 (95% CI: 0.92, 2.04) in comparison with the most integrated men. In multivariate cause-specific analyses, isolated men had elevated risks of dying from cancer (relative risk = 3.60) and from accidents and suicide (relative risk = 3.54). Among women, in multivariate analyses, the relative risk was 3.64 (95% CI: 0.72, 18.58). The small number of deaths among women (n = 29) limited statistical power and prohibited cause-specific analyses. These results suggest that in this employed cohort of middle-aged men and women, social integration is an important predictor of mortality.

Keywords: interpersonal relations; mortality; social environment; social isolation; social support; Abbreviations: CI, confidence interval; EDF-GDF, Electricity of France–Gas of France; RR, relative risk.

Journal Article.  4970 words. 

Subjects: Public Health and Epidemiology

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