title: Acute low back pain in high school adolescents in Southern Brazil: prevalence and associated factors.
abstract: OBJECTIVE
  The aim of this study was to investigate the prevalence of acute low back pain (ALBP) and associated factors in high school students from a Southern Brazilian city.
  
  
  METHODS
  The study was cross-sectional and interviewed 1,233 students 13- to 19-year-olds, attending high schools. A total of 25 schools were included in the sample (15 state institutions, 7 private, 2 federal and 1 municipal). The ALBP was evaluated using two questions. The outcome was LBP in the previous 30 days.
  
  
  RESULTS
  The prevalence of ALBP was 13.7%. Non-white students, who commuted to school walking, showed a higher prevalence of ALBP. The prevalence of ALBP is relatively high.
  
  
  CONCLUSIONS
  Further studies with follow-ups to adulthood are needed to investigate whether physical cumulative loads on the lumbar spine (for example, duration/transport, school bags and inadequate school furniture) during adolescence, may influence the development of ALBP later in life.
authors: Post Graduate Program in Physical Education, Federal University of Pelotas, Rua Luiz de Camões, 625 Bairro Três Vendas, Pelotas, RS CEP 96055-630, Brazil.
authors: Antonio Carlos
authors: AC
authors: Onofrio
authors: Marcelo Cozzensa
authors: MC
authors: da Silva
authors: Marlos Rodrigues
authors: MR
authors: Domingues
authors: Airton José
authors: AJ
authors: Rombaldi
mesh_terms: D000293:Adolescent; D015992:Body Mass Index; D001938:Brazil / Q000453:epidemiology; D003430:Cross-Sectional Studies; D006804:Ergonomics; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000453:epidemiology* / Q000208:ethnology*; D008297:Male; D009043:Motor Activity; D009752:Nutritional Status; D015995:Prevalence; D012574:Schools; D012907:Smoking; D012923:Social Class; D014186:Transportation; D016474:Weight-Bearing; D055815:Young Adult