Sedentary Behaviors and Obesity in a Low-Income, Ethnic-Minority Population
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Background:
Numerous studies have documented adverse health effects from prolonged sitting and TV viewing. These sedentary pastimes are linked to increased risk for obesity and other cardiometabolic risk factors. No studies, however, have examined these associations specifically in low-income, minority communities in the US.
Methods:
This cross-sectional, community-based study was conducted in South Dallas, TX. Multivariable ordered logistic regression models were used to examine the association between sedentary behaviors (self-report) and measures of objectively assessed obesity (BMI, waist circumference).
Results:
Among a low-income, ethnic-minority population, there were independent and significant associations between higher levels of sitting time, computer use, and transit time with elevated BMI (P < .05). Elevated waist circumference was also linked to increased sitting time, computer use, and transit time, yet without statistical significance.
Conclusions:
Increased time spent in passive-leisure activities is a risk marker for obesity in this population.
Shuval is with the Division of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas School of Public Health, Dallas, TX, and the Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center at Dallas, Dallas, TX. Leonard and Murdoch are with the Dept of Economics, University of Texas, Dallas, TX. Caughy is with the Division of Health Promotion and Behavioral Sciences, University of Texas School of Public Health, Dallas, TX, and the Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center at Dallas, Dallas, TX. Kohl is with the Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Austin, TX, and the Dept of Kinesiology and Health Education, University of Texas, Austin, TX. Skinner is with the Dept of Clinical Sciences, Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX.
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