The farmers participating in the study answered a questionnaire which was applied by a trained
professional. The questionnaire, adapted from a previous one developed and validated by our group [26],
Int. J. Environ. Res. Public Health 2012, 9 3054
was comprised of 59 objective questions (yes/no or multiple choice), and one subjective question
(concerning adverse symptoms after pesticide exposure). The aim was to obtain information on
the workers and the farms, the attitudes and practices of farmers regarding pesticide use, and
symptoms following pesticide application to determine the impact of pesticide use on human health
and the environment.