title: [Physical activity, screen time and sleep patterns in Chilean girls].
abstract: BACKGROUND
  Physical activity (PA), screen time (ST), and sleep are modifiable lifestyle habits for health. The objectives of this study were: a) to examine the association between PA, ST, and both, on sleep patterns; and b) to determine the influence of PA and ST on sleep problems in Chilean girls.
  
  
  METHODS
  The study involved 196 children (12.2 years). Patterns and sleep problems were assessed using the Spanish version of the Sleep Self-Report, and the PA through the Physical Activity Questionnaire for Adolescents (PAQ-A), both in Castilian. The ST was assessed using several questions about television, game console and computer use.
  
  
  RESULTS
  The ST recommendation (2h a day) was exceeded by 63.2% of the girls. In general, the most active girls (last quartile) that did not exceed the recommendations of ST reported higher sleep quality and total score values compared to those who did not meet both. The logistic regression analysis showed that girls who did not meet both habits were more likely to have sleep quality (odds ratio=17.8, P=.018), and general sleep problems (odds ratio=7.85, P=.025).
  
  
  CONCLUSIONS
  Parents need to set limits on sedentary leisure time and encourage more active habits, as sleep is a parameter closely linked to a better health profile in youth.
authors: Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile.
authors: M M
authors: MM
authors: Aguilar
authors: Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile.
authors: F A
authors: FA
authors: Vergara
authors: Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile.
authors: E J A
authors: EJ
authors: Velásquez
authors: Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile. Electronic address: agarciah@uautonoma.cl.
authors: A
authors: A
authors: García-Hermoso
mesh_terms: D002648:Child; D002677:Chile; D003201:Computers; D015444:Exercise; D005260:Female; D006801:Humans; D057185:Sedentary Behavior; D013690:Television
keywords: Calidad del sueño; Conducta sedentaria; Estilos de vida saludables; Healthy lifestyle; Sedentary behavior; Sleep quality