Reaction time and mortality from the major causes of death: the NHANES-III study.
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ABSTRACT: Objective
Studies examining the relation of information processing speed, as measured by reaction time, with mortality are scarce. We explored these associations in a representative sample of the US population.Methods
Participants were 5,134 adults (2,342 men) aged 20-59 years from the Third National Health and Nutrition Examination Survey (NHANES III, 1988-94).Results
Adjusted for age, sex, and ethnic minority status, a 1 SD slower reaction time was associated with a raised risk of mortality from all-causes (HR = 1.25, 95% CI 1.12, 1.39) and cardiovascular disease (CVD) (HR = 1.36, 95% CI 1.17, 1.58). Having 1 SD more variable reaction time was also associated with greater risk of all-cause (HR = 1.36, 95% CI 1.19, 1.55) and CVD (HR = 1.50, 95% CI 1.33, 1.70) mortality. No associations were observed for cancer mortality. The magnitude of the relationships was comparable in size to established risk factors in this dataset, such as smoking.Interpretation
Alongside better-established risk factors, reaction time is associated with increased risk of premature death and cardiovascular disease. It is a candidate risk factor for all-cause and cause-specific mortality.
SUBMITTER: Hagger-Johnson G
PROVIDER: S-EPMC3906008 | biostudies-literature | 2014
REPOSITORIES: biostudies-literature
Publications
Reaction time and mortality from the major causes of death: the NHANES-III study.
Hagger-Johnson Gareth G Deary Ian J IJ Davies Carolyn A CA Weiss Alexander A Batty G David GD
PloS one 20140129 1
<h4>Objective</h4>Studies examining the relation of information processing speed, as measured by reaction time, with mortality are scarce. We explored these associations in a representative sample of the US population.<h4>Methods</h4>Participants were 5,134 adults (2,342 men) aged 20-59 years from the Third National Health and Nutrition Examination Survey (NHANES III, 1988-94).<h4>Results</h4>Adjusted for age, sex, and ethnic minority status, a 1 SD slower reaction time was associated with a rai ...[more]
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