Figure 1 | Journal of Exposure Science & Environmental Epidemiology

Figure 1

From: Accuracy of self-reported pesticide use duration information from licensed pesticide applicators in the Agricultural Health Study

Figure 1

Pesticide use question format, AHS applicator questionnaires, 1994–1997. *The categories for this question were reduced on the take-home questionnaire with a maximum category of more than 20 years. **These frequency categories were used for herbicides and insecticides; the categories for fungicides and fumigants included smaller intervals.

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