Table 7:
Detection and Concentrationa (ng/g) Differences between Rural, Farmworker (n=73) and Urban, Non-farmworker (n=60) Children for Commonly Detected Pesticides and Pesticide Degradation Products (at least 20 detections), PACE5 Study, 2018–2019
| Specific Pesticides and Pesticide Degradation Products | Detection | Concentration | ||||
|---|---|---|---|---|---|---|
| n (%) | p-value | Log Mean (SEb) | Range | geometric mean (CIc) | p-value | |
| Organochlorines | ||||||
| 4_4_DDE | 0.8080 | 0.8258 | ||||
| Rural, farmworker | 12 (16.4) | 2.3 (0.2) | 0.9 – 4.2 | 10.06 (6.04, 16.76) | ||
| Urban, non-farmworker | 8 (13.3) | 2.2 (0.3) | 1.0 – 3.1 | 9.23 (4.94, 17.26) | ||
| alpha_Chlordane | 0.0047 | 0.0055 | ||||
| Rural, farmworker | 43 (58.9) | 2.3 (0.2) | 0.7 – 5.0 | 10.25 (7.49, 14.03) | ||
| Urban, non-farmworker | 49 (81.7) | 2.9 (0.1) | 0.9 – 5.4 | 18.98 (14.14, 25.47) | ||
| Dieldrin | 0.0005 | 0.0034 | ||||
| Rural, farmworker | 22 (30.1) | 2.1 (0.2) | 1.2 – 3.4 | 8.10 (5.47, 12.00) | ||
| Urban, non-farmworker | 36 (60.0) | 2.9 (0.2) | 1.1 – 5.0 | 17.38 (12.78, 23.62) | ||
| gamma_Chlordane | <.0001 | 0.2522 | ||||
| Rural, farmworker | 35 (47.9) | 2.3 (0.2) | 0.5 – 4.4 | 10.27 (6.99, 15.08) | ||
| Urban, non-farmworker | 53 (88.3) | 2.3 (0.2) | 0.5 – 4.4 | 13.68 (10.02, 18.70) | ||
| trans_Nonachlor | <.0001 | 0.1188 | ||||
| Rural, farmworker | 36 (49.3) | 1.5 (0.2) | −0.5 – 3.5 | 4.70 (3.20, 6.89) | ||
| Urban, non-farmworker | 54 (90.0) | 1.9 (0.2) | −0.6 – 4.9 | 6.95 (5.09, 9.51) | ||
| Pyrethroids | ||||||
| Cypermethrin | 0.4380 | 0.2226 | ||||
| Rural, farmworker | 34 (46.6) | 5.9 (0.2) | 4.1 – 8.6 | 380.56 (232.66, 622.46) | ||
| Urban, non-farmworker | 32 (53.3) | 5.5 (0.3) | 2.5 – 8.9 | 246.16 (148.24, 408.78) | ||
| cis_Permethrin | 0.0770 | 0.5463 | ||||
| Rural, farmworker | 22 (30.1) | 5.4 (0.2) | 3.0 – 8.3 | 230.86 (139.71, 381.49) | ||
| Urban, non-farmworker | 27 (45.0) | 5.2 (0.2) | 3.3 – 7.5 | 188.19 (119.59, 296.14) | ||
| trans_Permethrin | 0.1049 | 0.2665 | ||||
| Rural, farmworker | 24 (32.9) | 6.0 (0.3) | 3.5 – 9.1 | 395.85 (238.97, 655.75) | ||
| Urban, non-farmworker | 28 (46.7) | 6.4 (0.2) | 4.6 – 8.5 | 581.65 (364.52, 928.12) | ||
| Organophosphates | ||||||
| Chlorpyrifos | 0.0018 | 0.9567 | ||||
| Rural, farmworker | 49 (67.1) | 2.8 (0.2) | 1.0 – 6.9 | 16.41 (12.14, 22.18) | ||
| Urban, non-farmworker | 24 (40.0) | 2.8 (0.2) | 1.6 – 4.3 | 16.18 (10.52, 24.87) | ||
a
Values above the limit of detection
b
SE = Standard error
c
CI = Confidence interval