Dataset Information

Computer activities, physical exercise, aging, and mild cognitive impairment: a population-based study.

ABSTRACT:

Objective

To examine the association between computer use, physical exercise, aging, and mild cognitive impairment (MCI).

Patients and methods

The Mayo Clinic Study of Aging is a population-based study of aging and MCI in Olmsted County, Minnesota. The study sample consists of a random sample of 926 nondemented individuals aged 70 to 93 years who completed self-reported questionnaires on physical exercise, computer use, and caloric intake within 1 year of the date of interview. The study was conducted from April 1, 2006, through November 30, 2008. An expert consensus panel classified each study participant as cognitively normal or having MCI on the basis of published criteria.

Results

Using a multivariable logistic regression model, we examined the impact of the presence during the study period of 2 lifestyle factors (physical exercise and computer use) after adjusting for a third lifestyle factor (caloric intake) on aging and MCI. We also adjusted for age, sex, education, medical comorbidity, and depression. The median daily caloric intake was significantly higher in participants with MCI than in controls (odds ratio, 1.04; 95% confidence interval, 1.02-1.06; P=.001). Participants who engaged in both moderate physical exercise and computer use had significantly decreased odds of having MCI (odds ratio [95% confidence interval], 0.36 [0.20-0.68]) compared with the reference group. In the interaction analyses, there was an additive interaction (P=.012) but not multiplicative interaction (P=.780).

Conclusion

In this population-based sample, the presence of both physical exercise and computer use as assessed via survey was associated with decreased odds of having MCI, after adjustment for caloric intake and traditional confounders.

SUBMITTER: Geda YE

PROVIDER: S-EPMC3538471 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature

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Publications

Computer activities, physical exercise, aging, and mild cognitive impairment: a population-based study.

Geda Yonas E YE Silber Taryn C TC Roberts Rosebud O RO Knopman David S DS Christianson Teresa J H TJ Pankratz V Shane VS Boeve Bradley F BF Tangalos Eric G EG Petersen Ronald C RC

Mayo Clinic proceedings 20120501 5

<h4>Objective</h4>To examine the association between computer use, physical exercise, aging, and mild cognitive impairment (MCI).<h4>Patients and methods</h4>The Mayo Clinic Study of Aging is a population-based study of aging and MCI in Olmsted County, Minnesota. The study sample consists of a random sample of 926 nondemented individuals aged 70 to 93 years who completed self-reported questionnaires on physical exercise, computer use, and caloric intake within 1 year of the date of interview. Th ...[more]

PMID: 22560523

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Dataset Information

Computer activities, physical exercise, aging, and mild cognitive impairment: a population-based study.

Objective

Patients and methods

Results

Conclusion

Publications

Computer activities, physical exercise, aging, and mild cognitive impairment: a population-based study.

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