| Meeting U.S. Healthy People 2010 levels of physical activity: agreement of 2 measures across 2 years. | |
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MedLine Citation:
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PMID: 20538194 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Measuring the way people vary across time in meeting recommended levels of physical activity should be a fundamental component of public health surveillance. However, we were unaware of prospective cohort studies that had examined this in a population base using convergent measures. PURPOSE: We examined agreement between two validated measures used to estimate periodic change in the rate of meeting U.S. Healthy People 2010 guidelines for participation in moderate or vigorous physical activity. METHODS: A cohort (N = 497) from a random, multiethnic sample of adults living in Hawaii was assessed every 6-months for 2 years starting spring 2004. Latent transition analysis classified people as meeting or not meeting the guidelines. Intra-class kappa statistics and multinomial logistic regression analysis were used to evaluate agreement. RESULTS: Agreement for classifying stable classes of people who met or did not meet the guideline each time was substantial for vigorous activity (kappa approximately 0.65-0.70) but fair-to-moderate for moderate activity (kappa approximately 0.38-0.48). Agreement was poorer for classifying people who transitioned between meeting and not meeting the vigorous guideline (kappa approximately 0.45) or the moderate guideline (kappa approximately 0.21-0.29). CONCLUSIONS: Rates of meeting the guidelines varied across time and were estimated differently by the two measures, especially for moderate activity. This finding illustrates an understudied problem for public health promotion. Accurate classification of change within people is necessary for determining exposure in outcome studies, personal determinants of sufficient activity, and for evaluating whether interventions are successful in sustaining increases in rates of meeting physical activity guidelines. |
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Authors:
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Rod K Dishman; Cherie R Rooks; Nathaniel J Thom; Robert W Motl; Claudio R Nigg |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: Annals of epidemiology Volume: 20 ISSN: 1873-2585 ISO Abbreviation: Ann Epidemiol Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-06-11 Completed Date: 2010-09-22 Revised Date: 2011-08-01 |
Medline Journal Info:
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Nlm Unique ID: 9100013 Medline TA: Ann Epidemiol Country: United States |
Other Details:
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Languages: eng Pagination: 511-23 Citation Subset: IM |
Copyright Information:
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2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Kinesiology, University of Georgia, Athens, 30602-6554, USA. rdishman@uga.edu <rdishman@uga.edu> |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Age Factors Body Mass Index Chi-Square Distribution Continental Population Groups Educational Status Exercise* Female Guidelines as Topic Hawaii / epidemiology Healthy People Programs / statistics & numerical data* Humans Logistic Models Male Middle Aged Prospective Studies Questionnaires Sex Factors Socioeconomic Factors |
| Grant Support | |
ID/Acronym/Agency:
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R01 CA109941-04/CA/NCI NIH HHS; R01CA109941/CA/NCI NIH HHS |
| Comments/Corrections | |
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