Table 7.
Factors associated with large drift events (≥ 5 cases).
| Small event (n = 555) | Large event (n = 88) | Large event (vs. small), OR (95% CI) | ||||||
|---|---|---|---|---|---|---|---|---|
| Factor | n (%) | n (%) | ||||||
| Pesticide functional class | ||||||||
| Insecticide | 172 | (31.0) | 26 | (29.5) | Reference | |||
| Fumigant | 29 | (5.2) | 23 | (26.1) | 5.25 (2.64–10.41) | |||
| Multiple combination | 178 | (32.1) | 29 | (33.0) | 1.08 (0.61–1.91) | |||
| Other single pesticide class or unknown | 176 | (31.7) | 10 | (11.4) | 0.38 (0.18–0.80) | |||
| Application target | ||||||||
| Soil | 31 | (5.6) | 24 | (27.3) | 8.50 (4.57–15.79) | |||
| Small fruit cropsa | 38 | (6.8) | 14 | (15.9) | 4.04 (2.03–8.06) | |||
| Leafy vegetable cropsb | 25 | (4.5) | 8 | (9.1) | 3.51 (1.49–8.27) | |||
| Otherc | 461 | (83.1) | 42 | (47.7) | Reference | |||
| Application method | ||||||||
| Aerial application | 223 | (40.2) | 26 | (29.5) | 0.91 (0.54–1.53) | |||
| Chemigation | 20 | (3.6) | 22 | (25.0) | 8.58 (4.31–17.09) | |||
| Otherd | 312 | (56.2) | 40 | (45.5) | Reference | |||
| aFor example, berries, grapes, currants. bFor example, beets, celery, broccoli, lettuce, spinach. cIncludes tree fruit or other vegetable crops, other crop categories, landscape and forest, undesired plants, livestock farms, unknown. dIncludes other ground application equipment, multiple, and unknown. | ||||||||