Dataset Information

Work Hours and Cognitive Function: The Multi-Ethnic Study of Atherosclerosis.

ABSTRACT:

Background

Cognitive impairment is a public health burden. Our objective was to investigate associations between work hours and cognitive function.

Methods

Multi-Ethnic Study of Atherosclerosis (MESA) participants (n = 2,497; 50.7% men; age range 44-84 years) reported hours per week worked in all jobs in Exams 1 (2000-2002), 2 (2002-2004), 3 (2004-2005), and 5 (2010-2011). Cognitive function was assessed (Exam 5) using the Cognitive Abilities Screening Instrument (version 2), a measure of global cognitive functioning; the Digit Symbol Coding, a measure of processing speed; and the Digit Span test, a measure of attention and working memory. We used a prospective approach and linear regression to assess associations for every 10 hours of work.

Results

Among all participants, associations of hours worked with cognitive function of any type were not statistically significant. In occupation-stratified analyses (interaction p = 0.051), longer work hours were associated with poorer global cognitive function among Sales/Office and blue-collar workers, after adjustment for age, sex, physical activity, body mass index, race/ethnicity, educational level, annual income, history of heart attack, diabetes, apolipoprotein E-epsilon 4 allele (ApoE4) status, birth-place, number of years in the United States, language spoken at MESA Exam 1, and work hours at Exam 5 (β = -0.55, 95% CI = -0.99, -0.09) and (β = -0.80, -1.51, -0.09), respectively. In occupation-stratified analyses (interaction p = 0.040), we also observed an inverse association with processing speed among blue-collar workers (adjusted β = -0.80, -1.52, -0.07). Sex, race/ethnicity, and ApoE4 did not significantly modify associations between work hours and cognitive function.

Conclusion

Weak inverse associations were observed between work hours and cognitive function among Sales/Office and blue-collar workers.

SUBMITTER: Charles LE

PROVIDER: S-EPMC7303534 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Publications

Work Hours and Cognitive Function: The Multi-Ethnic Study of Atherosclerosis.

Charles Luenda E LE Fekedulegn Desta D Burchfiel Cecil M CM Fujishiro Kaori K Al Hazzouri Adina Zeki AZ Fitzpatrick Annette L AL Rapp Stephen R SR

Safety and health at work 20200423 2

<h4>Background</h4>Cognitive impairment is a public health burden. Our objective was to investigate associations between work hours and cognitive function.<h4>Methods</h4>Multi-Ethnic Study of Atherosclerosis (MESA) participants (<i>n</i> = 2,497; 50.7% men; age range 44-84 years) reported hours per week worked in all jobs in Exams 1 (2000-2002), 2 (2002-2004), 3 (2004-2005), and 5 (2010-2011). Cognitive function was assessed (Exam 5) using the Cognitive Abilities Screening Instrument (version 2 ...[more]

PMID: 32596013

Similar Datasets

Project description:Background and aimsThe Adherence to the Dietary Approaches to Stop Hypertension (DASH) diet has been associated with better cognitive function in studies of predominantly White participants; few studies have examined this association in diverse cohorts. Our objective was to examine the association between the DASH diet and cognitive function in the diverse Multi-Ethnic Study of Atherosclerosis (MESA) cohort.MethodsAmong 4169 MESA participants, we evaluated prospectively, the association between DASH diet adherence and cognitive function. Participants completed a food frequency questionnaire at baseline (2000-2002) and cognitive function was assessed using the Cognitive Abilities Screening Instrument (CASI), Digit Symbol Coding (DSC), and Digit Span (DS) at Exam 5 in 2010-2012 and Exam 6 (2016-2019). Regression analyses were used to evaluate the association between quintiles of DASH diet adherence with CASI, DSC, and DS performance and decline, adjusting for potential confounders. Effect modification by hypertension, diabetes, race/ethnicity, acculturation, and exercise were evaluated.ResultsDASH diet adherence was not associated with cognitive performance or decline for any of the measures. There were no differences by racial/ethnic groups, with the exception that Hispanic participants reporting greater DASH diet adherence, performed worse on DS at Exam 5 (p = 0.05). Components of the DASH diet were differentially correlated with test performance: increased consumption of nuts/legumes was associated with better performance on the CASI at Exam 5 (p = 0.003) and Exam 6 (p = 0.007). Increased consumption of whole grains was associated with better DSC performance at Exam 5 (p = 0.04) and better DS performance at Exam 6 (p = 0.01).ConclusionsDASH diet adherence was nominally associated with cognitive function with a suggestion of differences by race/ethnicity. Future work should examine more closely, the relationships between racial and ethnic groups and the impact of diet on cognitive function.

Dataset Information

Work Hours and Cognitive Function: The Multi-Ethnic Study of Atherosclerosis.

Background

Methods

Results

Conclusion

Publications

Work Hours and Cognitive Function: The Multi-Ethnic Study of Atherosclerosis.

Similar Datasets

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