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Revista médica de Chile
versión impresa ISSN 0034-9887
PANTIC, Igor et al. Screen viewing, body mass index, cigarette smoking and sleep duration in Belgrade University student population: results of an observational, cross-sectional study. Rev. méd. Chile [online]. 2011, vol.139, n.7, pp.896-901. ISSN 0034-9887. http://dx.doi.org/10.4067/S0034-98872011000700010.
Background: Subjects that spend more time working on computers or watching television could have a higher body mass index. Aim: To assess the relationship between time spent in front of a screen and studying, body mass index (BMI), smoking, and sleep duration among university students. Material and Methods: A cross-sectional study of 734 randomly selected students aged 21 ±2 years (450 females) that responded an anonymous, structured questionnaire about time spent watching television or in front of a computer, time spent studying, number of daily hours of sleep, smoking habits and number of daily meals. Body mass index was also calculated for all subjects Results: Among males, the number of daily sleep hours, time spent working with computers and number of daily meals were significantly higher and time spent studying was significantly lower than females. Nonsmokers ate a significantly higher number of meals and spent less time watching television. No association was observed between time spent in front of a screen and number of sleep hours of body mass index. Conclusions: Men and smokers spend more time working in computers. There is no association between body mass index and time spent in front of screens.
Palabras clave : Body mass index; Gender; Smoking; Television.