Combining activity-related behaviors and attributes improves prediction of health status in NHANES

Sarah Kozey Keadle, Shirley Bluethmann, Charles E. Matthews, Barry I. Graubard, Frank M. Perna

Research output: Contribution to journalArticle

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Abstract

Background: This paper tested whether a physical activity index (PAI) that integrates PA-related behaviors (ie, moderateto- vigorous physical activity [MVPA] and TV viewing) and performance measures (ie, cardiorespiratory fitness and muscle strength) improves prediction of health status. Methods: Participants were a nationally representative sample of US adults from 2011 to 2012 NHANES. Dependent variables (self-reported health status, multimorbidity, functional limitations, and metabolic syndrome) were dichotomized. Wald-F tests tested whether the model with all PAI components had statistically significantly higher area under the curve (AUC) values than the models with behavior or performance scores alone, adjusting for covariates and complex survey design. Results: The AUC (95% CI) for PAI in relation to health status was 0.72 (0.68, 0.76), and PAI-AUC for multimorbidity was 0.72 (0.69, 0.75), which were significantly higher than the behavior or performance scores alone. For functional limitations, the PAI AUC was 0.71 (0.67, 0.74), significantly higher than performance, but not behavior scores, while the PAI AUC for metabolic syndrome was 0.69 (0.66, 0.73), higher than behavior but not performance scores. Conclusions: These results provide empirical support that an integrated PAI may improve prediction of health and disease. Future research should examine the clinical utility of a PAI and verify these findings in prospective studies.

Original languageEnglish (US)
Pages (from-to)626-635
Number of pages10
JournalJournal of Physical Activity and Health
Volume14
Issue number8
DOIs
StatePublished - Aug 1 2017

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Nutrition Surveys
Health Status
Area Under Curve
Comorbidity
Muscle Strength
Prospective Studies
Health

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

Cite this

Keadle, Sarah Kozey ; Bluethmann, Shirley ; Matthews, Charles E. ; Graubard, Barry I. ; Perna, Frank M. / Combining activity-related behaviors and attributes improves prediction of health status in NHANES. In: Journal of Physical Activity and Health. 2017 ; Vol. 14, No. 8. pp. 626-635.
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Combining activity-related behaviors and attributes improves prediction of health status in NHANES. / Keadle, Sarah Kozey; Bluethmann, Shirley; Matthews, Charles E.; Graubard, Barry I.; Perna, Frank M.

In: Journal of Physical Activity and Health, Vol. 14, No. 8, 01.08.2017, p. 626-635.

Research output: Contribution to journalArticle

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