TABLE 1—

Pesticides Exposure Study Biospecimens and Participation Over Three Seasons: Yakima Valley, WA, 2011

	Total Participants
Variables	Prethinning Season, Chlorpyrifos (Mar–May 2011)	Thinning Season, Azinphosmethyl (June–Aug 2011)	Nonspray Season, None (Nov–Dec 2011)
Baseline survey	100	96	98
Urine—day 1	100	96	98
Urine—day 3	100	96	98
Urine—day 5	99	96	98
Urine—day 7	100	96	98
Blood sample—day 1	100	95	97
Buccal cell—day 1	100	96	98
Buccal cell—day 3	100	96	98
House dust—day 1	100	96	98
House dust—day 7	100	96	98
Vehicle dust	96	92	94
3-day diet survey	100	96	98
7-day activity diary	100	96	98
Follow-up survey	100	96	98

Note. The sample size was n = 100.