title: Time to first pregnancy among women working in agricultural production.
abstract: OBJECTIVE
  This study explores several factors potentially associated with reduced fecundability among women working in cut flowers production.
  
  
  METHODS
  A cross-sectional study of first pregnancies was undertaken in 47 Colombian floriculture companies. Two thousand and eighty-five women were interviewed regarding potential reproductive, lifestyle and work history predictors of time-to-pregnancy (TTP), measured in months. Fecundability odds ratios (fOR) were estimated using a discrete time analogue of Cox's proportional hazard model.
  
  
  RESULTS
  Associated with longer TTP were: irregular relationships with her partner (fOR 0.82, 95% CI 0.73-0.91), illness in the year prior to pregnancy (fOR 0.78, 95% CI 0.62-0.98), smoking tobacco (fOR 0.71, 95% CI 0.59-0.85), and work in flower production, less than 24 months (fOR 0.86 95% CI 0.75-0.98) or 2 years or more (fOR 0.73, 95% CI 0.63-0.84).
  
  
  CONCLUSIONS
  Work in flower production, irregular relationship, illness and tobacco exposure would be associated with impaired fecundability.
authors.affiliation: Departamento de Salud Pública y Tropical, Facultad de Medicina, Instituto de Salud Pública, Universidad Nacional de Colombia, Bogotá DC, Colombia. idrovoaj@hotmail.com
authors.forename: Alvaro J
authors.initials: AJ
authors.lastname: Idrovo
authors.forename: Luz Helena
authors.initials: LH
authors.lastname: Sanìn
authors.forename: Donald
authors.initials: D
authors.lastname: Cole
authors.forename: Jorge
authors.initials: J
authors.lastname: Chavarro
authors.forename: Heidy
authors.initials: H
authors.lastname: Cáceres
authors.forename: Javier
authors.initials: J
authors.lastname: Narváez
authors.forename: Mauricio
authors.initials: M
authors.lastname: Restrepo
mesh_terms: D000328:Adult; D000383:Agriculture; D003105:Colombia; D003430:Cross-Sectional Studies; D003627:Data Interpretation, Statistical; D005260:Female; D005298:Fertility; D006801:Humans; D016273:Occupational Exposure / Q000009:adverse effects*; D010575:Pesticides / Q000009:adverse effects; D011247:Pregnancy; D012907:Smoking / Q000009:adverse effects
chemical_list: D010575:Pesticides