title: Organophosphate Pesticide Exposure Among Pome and Non-Pome Farmworkers: A Subgroup Analysis of a Community Randomized Trial.
abstract: OBJECTIVE
  We examined the effectiveness of a community randomized intervention among farmworkers who did and did not work in pome fruit (apples and pears).
  
  
  METHODS
  Urine samples were collected from two cross-sectional groups of farmworkers and analyzed for the presence of dimethylthiophosphate.
  
  
  RESULTS
  There was no significant time by crop interaction for changes in urinary metabolite concentrations among adult farmworkers (P = 0.79 pome fruit workers; P = 0.83 non-pome fruit workers) or their children (P = 0.25 children of pome fruit workers; P = 0.91 children of non-pome fruit workers). We found greater urinary metabolite concentrations of dimethylthiophosphate among pome fruit workers (compared with non-pome fruit workers) and among workers at final data collection (compared with baseline).
  
  
  CONCLUSIONS
  Further research is needed to identify effective interventions to reduce pesticide exposure in farmworkers and their children.
authors.affiliation: Cancer Prevention Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA. gcoronad@fhcrc.org
authors.forename: Gloria
authors.initials: G
authors.lastname: Coronado
authors.forename: Eric M
authors.initials: EM
authors.lastname: Vigoren
authors.forename: William C
authors.initials: WC
authors.lastname: Griffith
authors.forename: Elaine M
authors.initials: EM
authors.lastname: Faustman
authors.forename: Beti
authors.initials: B
authors.lastname: Thompson