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Sitting time and health outcomes among Mexican origin adults: obesity as a mediator

De Heer, Hendrik D. and Wilkinson, Anna V. and Strong, Larkin L. and Bondy, Melissa L. and Koehly, Laura M. (2012) Sitting time and health outcomes among Mexican origin adults: obesity as a mediator. BMC Public Health, 12 (1). pp. 896-904. ISSN 1471-2458


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Publisher’s or external URL: http://dx.doi.org/10.1186/1471-2458-12-896


Background: Sitting time and sedentary behaviors have been associated with adverse health outcomes including obesity, diabetes and cardiovascular disease (CVD) within non- Hispanic White populations. Similar associations have not been described within Hispanic populations despite their high CVD risk profile. This study aimed to assess the association between sitting time and obesity, self-reported diagnosed diabetes, hypertension and high cholesterol among a large cohort (N=11,268) of Mexican origin adults and to assess whether obesity mediated these associations. Methods: Using a cross-sectional design, data collected between 2004 and 2010 were analyzed in late 2010. Regression analyses evaluated associations between self-reported daily sitting hours and disease outcomes, controlling for demographics, employment status, family disease history, and light, moderate and strenuous physical activity. Results: Participants were mostly female (81.1%) Mexican origin adults. Sitting time was associated with increased odds of being obese, having diabetes and having hypertension, but not high cholesterol. Adjusted odds ratios of participants who reported sitting > 4 hours/day compared to those sitting 1-2 hours/day were for obesity OR=1.55 (95% CI 1.39, 1.73), p<.001, for diabetes OR=1.29 (95% CI, 1.09, 1.52), p=.003, for hypertension OR=1.17 (95% CI, 1.01, 1.37), p=.041. Associations controlled for physical activity and employment status. Effects on hypertension and diabetes were mediated by obesity. Conclusions: Sitting time was significantly associated with detrimental health outcomes, independent of physical activity. Obesity mediated these relationships for diabetes and hypertension. Future research should assess whether interventions addressing sitting time are feasible and effective among Mexican origin populations.

Item Type: Article
Publisher’s Statement: © 2012 de Heer et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
ID number or DOI: 10.1186/1471-2458-12-896
Keywords: Adult; Adults; America; Animals; APEC countries; Arizona; Behavior; Carbohydrate intolerance; cardiovascular-disease risk; Chordata; Cohort Studies; Cross-Sectional Studies; Developed Countries; Developing Countries; Diabetes; Diabetes Mellitus; employment; energy-expenditure; eukaryotes; fatness; Female; high blood pressure; Hispanic; Hominidae; Homo; Human behavior; human behaviour; human diseases; Humans; Hypercholesterolemia; Hypertension; Index Medicus; jobs; Latin America; life-style; Male; mammals; man; Metabolic syndrome; Mexican Americans; Mexico; Middle Aged; Mountain States of USA; Non-communicable Human Diseases and Injuries (VV600); North America; Nutrition disorders; Nutrition Related Disorders and Therapeutic Nutrition (VV130); Obesity; OECD Countries; Physical activity; physical-activity; plasma-glucose; Posture; primates; Public health; Qualitative research; Risk factors; Sedentary Lifestyle; sedentary time; Self Report; Sitting time; Southwestern States of USA; television viewing time; Threshold Countries; Time Factors; type-2 diabetes-mellitus; united-states; United States of America; USA; Vertebrates; Western States of USA
Subjects: R Medicine > RA Public aspects of medicine
NAU Depositing Author Academic Status: Faculty/Staff
Department/Unit: College of Health and Human Services > Physical Therapy and Athletic Training
Date Deposited: 30 Sep 2015 16:19
URI: http://openknowledge.nau.edu/id/eprint/466

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