title: Association between sedentary behaviour and socioeconomic factors, diet and lifestyle among the Balearic Islands adolescents.
abstract: BACKGROUND
  Many different factors influenced food habits and physical activity patterns of adolescents in a complex interactive way. The aim of this study was to assess association between sedentary behaviour and socioeconomic factors, diet and lifestyle among the Balearic Islands adolescents.
  
  
  METHODS
  A cross-sectional survey (n = 1961; 12-17 years old) was carried out. Physical activity was assessed using the International Physical Activity Questionnaire for adolescents (IPAQ-A). Sedentary behaviour was defined as <300 min/week of moderate and vigorous physical activity. Anthropometric measurements, body image, socio-economic and lifestyle determinants, food consumption, and adherence to the Mediterranean diet were assessed.
  
  
  RESULTS
  The prevalence of sedentary behaviour was 37.1% (22.0% boys, 50.8% girls). Active boys consumed frequently breakfast cereals and fresh fruit; active girls yogurt, cheese, breakfast cereals, and fresh fruit; and sedentary girls high fat foods and soft drinks. Sedentary behaviour of girls was directly associated to age, and time spent on media screen and homework, and inversely related to adherence to Mediterranean diet, and body composition. Sedentary behaviour of boys was inversely related to adherence to the Mediterranean diet, and the desire to remain the same weight.
  
  
  CONCLUSIONS
  The prevalence of sedentary behaviour among Balearic Islands adolescents is high, mainly among girls. Age, sex, parental educational and profession levels, body size dissatisfaction, and poor quality diet are important factors of physical activity practice among adolescents.
authors.affiliation: Research Group on Community Nutrition and Oxidative Stress, University of Balearic Islands, Guillem Colom Bldg, Campus, E-07122 Palma de Mallorca, Spain.
authors.forename: Maria del Mar
authors.initials: Mdel M
authors.lastname: Bibiloni
authors.forename: Jordi
authors.initials: J
authors.lastname: Pich
authors.forename: Alfredo
authors.initials: A
authors.lastname: Córdova
authors.forename: Antoni
authors.initials: A
authors.lastname: Pons
authors.forename: Josep A
authors.initials: JA
authors.lastname: Tur
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D002648:Child; D003430:Cross-Sectional Studies; D004032:Diet / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D012307:Risk Factors; D057185:Sedentary Behavior; D012959:Socioeconomic Factors; D013030:Spain; D011795:Surveys and Questionnaires