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Why does lung function predict mortality? Results from the Whitehall II Cohort Study.


ABSTRACT: The authors examined the extent to which socioeconomic position, behavior-related factors, cardiovascular risk factors, inflammatory markers, and chronic diseases explain the association between poor lung function and mortality in 4,817 participants (68.9% men) from the Whitehall II Study aged 60.8 years (standard deviation, 5.9), on average. Forced expiratory volume in 1 second (FEV(1)) was used to measure lung function in 2002-2004. A total of 139 participants died during a mean follow-up period of 6.4 years (standard deviation, 0.8). In a model adjusted for age and sex, being in the lowest tertile of FEV(1)/height(2) was associated with a 1.92-fold (95% confidence interval: 1.35, 2.73) increased risk of mortality compared with being in the top 2 tertiles. Once age, sex, and smoking history were taken into account, the most important explanatory factors for this association were inflammatory markers (21.3% reduction in the FEV(1)/height(2)-mortality association), coronary heart disease, stroke, and diabetes (11.7% reduction), and alcohol consumption, diet, physical activity, and body mass index (9.8% reduction). The contribution of socioeconomic position and cardiovascular risk factors was small (? 3.5% reduction). Taken together, these factors explained 32.5% of the association. Multiple pathways link lung function to mortality; these results show inflammatory markers to be particularly important.

SUBMITTER: Sabia S 

PROVIDER: S-EPMC2998200 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature

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Why does lung function predict mortality? Results from the Whitehall II Cohort Study.

Sabia Séverine S   Shipley Martin M   Elbaz Alexis A   Marmot Michael M   Kivimaki Mika M   Kauffmann Francine F   Singh-Manoux Archana A  

American journal of epidemiology 20101020 12


The authors examined the extent to which socioeconomic position, behavior-related factors, cardiovascular risk factors, inflammatory markers, and chronic diseases explain the association between poor lung function and mortality in 4,817 participants (68.9% men) from the Whitehall II Study aged 60.8 years (standard deviation, 5.9), on average. Forced expiratory volume in 1 second (FEV(1)) was used to measure lung function in 2002-2004. A total of 139 participants died during a mean follow-up peri  ...[more]

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