Girardin Jean-Louis1, Shawn Youngstedt2, Michael Grandner3, Natasha J Williams1, Daniel Sarpong4, Ferdinand Zizi1, Gbenga Ogedegbe1. 1. Center for Healthful Behavior Change, Department of Population Health, NYU School of Medicine, New York, NY. 2. College of Nursing and Health Innovation, College of Health Solutions, Arizona State University, Phoenix, AZ. 3. Department of Psychiatry, University of Pennsylvania, Philadelphia, PA. 4. Center for Minority Health & Health Disparities Research and Education, Xavier University of Louisiana, New Orleans, LA.
Abstract
BACKGROUND: This study ascertained whether individuals of the black race/ethnicity are unequally burdened by sleep-related overweight/obesity. METHODS: Analysis was based on data obtained from Americans (ages, 18-85 years) in the National Health Interview Survey (1977-2009). Sleep duration was coded as either very short sleep (VSS) (≤5 hours), short sleep (SS) (5-6 hours), or long sleep (>8 hours), referenced to 7-8-hour sleepers. Overweight was defined as body mass index (BMI) ≥25.0 and ≤29.9 kg/m2 and obesity, BMI ≥30 kg/m2, referenced to normal weight (BMI = 18.5-24.9 kg/m2). RESULTS: Multivariate-adjusted regression analyses indicated that, among whites, VSS was associated with a 10% increased likelihood of being overweight and 51% increased likelihood of being obese, relative to 7-8-hour sleepers. Short sleep was associated with a 13% increased likelihood of being overweight and 45% increased likelihood of being obese. Long sleep was associated with 21% increased likelihood of being obese. Among blacks, VSS was associated with a 76% increased likelihood of being overweight and 81% increased likelihood of being obese. Short sleep was associated with a 16% increased likelihood of being overweight and 32% increased likelihood of being obese. As for the white stratum, long sleep was associated with a 25% increased likelihood of being obese. CONCLUSION: Our investigation demonstrates strong linkages between inadequate sleep and overweight/ obesity among black and white Americans. Although it cannot be said that insufficient sleep causes overweight/obesity, individuals of the black race/ethnicity sleeping ≤5 hours may be unequally burdened by sleep-related overweight/obesity.
BACKGROUND: This study ascertained whether individuals of the black race/ethnicity are unequally burdened by sleep-related overweight/obesity. METHODS: Analysis was based on data obtained from Americans (ages, 18-85 years) in the National Health Interview Survey (1977-2009). Sleep duration was coded as either very short sleep (VSS) (≤5 hours), short sleep (SS) (5-6 hours), or long sleep (>8 hours), referenced to 7-8-hour sleepers. Overweight was defined as body mass index (BMI) ≥25.0 and ≤29.9 kg/m2 and obesity, BMI ≥30 kg/m2, referenced to normal weight (BMI = 18.5-24.9 kg/m2). RESULTS: Multivariate-adjusted regression analyses indicated that, among whites, VSS was associated with a 10% increased likelihood of being overweight and 51% increased likelihood of being obese, relative to 7-8-hour sleepers. Short sleep was associated with a 13% increased likelihood of being overweight and 45% increased likelihood of being obese. Long sleep was associated with 21% increased likelihood of being obese. Among blacks, VSS was associated with a 76% increased likelihood of being overweight and 81% increased likelihood of being obese. Short sleep was associated with a 16% increased likelihood of being overweight and 32% increased likelihood of being obese. As for the white stratum, long sleep was associated with a 25% increased likelihood of being obese. CONCLUSION: Our investigation demonstrates strong linkages between inadequate sleep and overweight/ obesity among black and white Americans. Although it cannot be said that insufficient sleep causes overweight/obesity, individuals of the black race/ethnicity sleeping ≤5 hours may be unequally burdened by sleep-related overweight/obesity.
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