Outcome comparison between harvests 2 and 1
| Job | Completely observed workers | Including dropouts | |||||||
| Continuous eGFR (mL/min/1.73 m2), regression estimate (95% CI) | IKI | ||||||||
| IKIMeasured | IKIAll | ||||||||
| Cross-harvest trend (Δ) | Change in cross-harvest trend (Δ') | N/total (%) | RR* (95% CI) | N/total (%) | RR* (95% CI) | ||||
| Harvest 1 | Harvest 2 | Harvest 1 | Harvest 2 | Harvest 1 | Harvest 2 | ||||
| Irrigation repair workers and field support staff | 0 (−2 to 1) | −2 (−4 to 1) | −2 (−4, 0) | 0/151 | 1/144 (1%) | – | 4/170 (2%) | 3/188 (2%) | 0.7 (0.2 to 3.0) |
| Seed cutters | −5 (−7 to −3) | −3 (−5 to −1) | 2 (−1, 4) | 5/148 (3%) | 13/176 (7%) | 2.2 (0.8 to 6.0) | 16/188 (9%) | 20/196 (10%) | 1.2 (0.6 to 2.2) |
| Burned cane cutters | −9 (−12 to −7) | −4 (−6 to −1) | 6 (2, 9) | 27/128 (21%) | 9/168 (5%) | 0.3 (0.1 to 0.5) | 43/157 (27%) | 13/183 (7%) | 0.3 (0.1 to 0.5) |
IKIMeasured was defined as an increase of SCr by ≥0.30 mg/dL or an increase ≥1.5 times from baseline to end-harvest (IKIMeasured) or combined with self-reported kidney injury (IKIReported) among dropouts (IKIAll). Continuous eGFR analysis from mixed effects linear regression adjusting for sex and age category.
Bold indicate changes significant at p<0.05.
*Unadjusted.
eGFR, estimated glomerular filtration rate ; IKI, incident kidney injury; RR, risk ratio; SCr, serum creatinine.