title: Severe back pain among farmworker high school students from Starr County, Texas: baseline results.
abstract: OBJECTIVE
  This cohort study is among the first to estimate the prevalence of and examine potential risk factors for severe back pain (resulting in medical care, 4+ hours of time lost, or pain lasting 1+ weeks) among adolescent farmworkers. These youth often perform tasks requiring bent/stooped postures and heavy lifting.
  
  
  METHODS
  Of 2536 students who participated (response rate across the three public high schools, 61.2% to 83.9%), 410 students were farmworkers (largely Hispanic and migrant). Students completed a self-administered Web-based survey including farm work/nonfarm work and back-pain items relating to a 9-month period.
  
  
  RESULTS
  The prevalence of severe back pain was 15.7% among farmworkers and 12.4% among nonworkers. The prevalence increased to 19.1% among farm workers (n = 131) who also did nonfarm work. A multiple logistic regression for farmworkers showed that significantly increased adjusted odds ratios for severe back pain were female sex (4.59); prior accident/back injury (9.04); feeling tense, stressed, or anxious sometimes/often (4.11); lifting/carrying heavy objects not at work (2.98); current tobacco use (2.79); 6+ years involved in migrant farm work (5.02); working with/around knives (3.87); and working on corn crops (3.40).
  
  
  CONCLUSIONS
  Areas for further research include ergonomic exposure assessments and examining the effects of doing farm work and nonfarm work simultaneously.
authors.affiliation: Department of Epidemiology and Biostatistics, Texas A & M University System Health Science Center, School of Rural Public Health, College Station, TX 77843, USA. emshipp@srph.tamhsc.edu
authors.forename: Eva M
authors.initials: EM
authors.lastname: Shipp
authors.forename: Sharon P
authors.initials: SP
authors.lastname: Cooper
authors.forename: Deborah J
authors.initials: DJ
authors.lastname: Del Junco
authors.forename: George L
authors.initials: GL
authors.lastname: Delclos
authors.forename: Keith D
authors.initials: KD
authors.lastname: Burau
authors.forename: Susan R
authors.initials: SR
authors.lastname: Tortolero
mesh_terms: D000293:Adolescent; D000383:Agriculture; D001416:Back Pain / Q000453:epidemiology / Q000503:physiopathology*; D015331:Cohort Studies; D003625:Data Collection; D005260:Female; D006801:Humans; D008297:Male; D016017:Odds Ratio; D012720:Severity of Illness Index; D013781:Texas / Q000453:epidemiology