title: Changes in television viewing and computers/videogames use among high school students in Southern Brazil between 2001 and 2011.
abstract: OBJECTIVE
  To compare the prevalence of television (TV) watching and of computer/videogame use among high school students (15-19 years) from Southern Brazil between 2001 and 2011 and to identify associated socio-demographic factors.
  
  
  METHODS
  Panel studies were conducted with high school students in the state of Santa Catarina, Brazil, in 2001 (n = 5,028) and 2011 (n = 6,529). TV watching and computer/videogame use were collected using questionnaires.
  
  
  RESULTS
  Prevalence of ≥2 h/day of TV watching dropped from 76.8 to 61.5 % and ≥2 h/day of computer/videogame use increased from 37.9 to 60.6 %. In both surveys, those aged 15-16 and those who did not work had higher likelihoods of being exposed to ≥2 h/day of TV watching. Boys, those with higher family income, and those who were living in urban areas had higher likelihoods of ≥2 h/day of computer/videogame use. Older age, studying at night and not working were protective factors to these behaviors.
  
  
  CONCLUSIONS
  After a decade, there was a decrease in the prevalence of TV viewing and an increase in computer/videogame use. Socio-demographic factors were differently associated with these behaviors.
authors.affiliation: Post-Graduate Program in Physical Education, Federal University of Santa Catarina, Rua Antonio Francisco da Silveira, 140, AP. 305. Pantanal, Florianópolis, SC, CEP 88040-160, Brazil, kelly.samara@ufsc.br.
authors.forename: Kelly Samara
authors.initials: KS
authors.lastname: Silva
authors.forename: Adair
authors.initials: A
authors.lastname: da Silva Lopes
authors.forename: Samuel Carvalho
authors.initials: SC
authors.lastname: Dumith
authors.forename: Leandro Martin Totaro
authors.initials: LM
authors.lastname: Garcia
authors.forename: Jorge
authors.initials: J
authors.lastname: Bezerra
authors.forename: Markus Vinicius
authors.initials: MV
authors.lastname: Nahas
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D001938:Brazil; D003201:Computers / Q000706:statistics & numerical data* / Q000639:trends; D016001:Confidence Intervals; D005260:Female; D006801:Humans; D008297:Male; D057185:Sedentary Behavior; D011795:Surveys and Questionnaires; D013690:Television / Q000706:statistics & numerical data* / Q000639:trends; D018910:Video Games / Q000639:trends*; D055815:Young Adult
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