Assessment of Sleep Duration and Overweight/Obesity among High School Adolescents in Addis Ababa, Ethiopia
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Date
2016-06
Authors
Dereje, Dessalegn
Journal Title
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Publisher
Addis Abeba Universty
Abstract
Background: Worldwide, at least 2.8 million people die each year due to overweight and
obesity, and an estimated 35.8 million (2.3%) of global Disability Adjusted Life Years (DALYs)
are caused by overweight and obesity. Many studies in Ethiopia showed that overweight and
obesity is caused due to increased intake of energy-dense food, physical inactivity, changing
modes of transportation and increasing urbanization. However, there is no published article
showing that short sleep duration is an independent risk factor to cause overweight and obesity
for adolescents in the country.
Objective of the study: To measure the magnitude of overweight/obesity and its association
with short sleep duration among high school adolescents’ in Addis Ababa, Ethiopia.
Methods: School based cross-sectional study was conducted with a sample size of 405. Data
was collected by self-administered questionnaire, entered and cleaned using EPI INFO version 7,
and was exported to SPSS version 20 for analysis. Body mass index (BMI) was computed using
weight and height (Kg/m2). Descriptive statistics using frequencies, proportion and table were
used to present the study results. Binary logistic regression analysis was employed to see
association between short sleep duration and overweight/obesity. To evaluate the association
between short sleep duration and overweight/obesity, both crude odds ratio and adjusted odds
ratio with 95% confidence interval were computed.
Results: The combined prevalence of adolescents’ overweight and obesity was 18.2%, the
specific prevalence for overweight and obesity were 14.4% and 3.8%, respectively. Adolescents
with short sleep duration (<8 hours/day) were significantly at risk for being overweight/obese as
compared to adolescents with normal sleep duration (8-10 hours/day) [AOR = 3.7 (95% CI: 1.9-
7.0)].
Conclusions and recommendations: The findings of this study showed that higher prevalence
rates of overweight and obesity were observed among adolescents in the study area. Short sleep
duration was strongly associated with overweight/obesity during adolescence. Hence, results of
this study suggest that adolescents should receive educational intervention on adequate duration
of sleep at night to reduce the risk of being overweight or obese.
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Keywords
Assessment of Sleep Duration and Overweight/Obesity