Table 4.
IRRs for NHL and 95% CI in association with adipose concentrations of p,p´-DDT, cis-nonachlor, and oxychlordane within strata of sex.
| Compound/concentrationa (μg/kg lipids) | n (cases/subcohort) | IRR (95% CI) | p-Value for differenceb | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Men | Women | Men | Women | |||||||
| p,p´-DDT | ||||||||||
| 6–15 | 8/16 | 21/21 | 1.00 | 1.00 | ||||||
| 15–22 | 16/13 | 16/19 | 1.90 (0.60, 6.02) | 0.77 (0.31, 1.89) | ||||||
| 22–36 | 20/11 | 15/27 | 3.36 (1.06, 10.64) | 0.48 (0.20, 1.17) | ||||||
| 36–49 | 10/7 | 13/12 | 2.05 (0.53, 7.87) | 0.88 (0.31, 2.47) | ||||||
| 49–460 | 9/7 | 9/4 | 2.30 (0.60, 8.77) | 1.69 (0.47, 6.08) | ||||||
| Linear estimate per IQRc | 63/54 | 74/83 | 1.50 (1.14, 1.98) | 1.15 (0.72, 1.86) | 0.35 | |||||
| cis-Nonachlor | ||||||||||
| 3–5 | 7/14 | 23/31 | 1.00 | 1.00 | ||||||
| 5–7 | 10/21 | 25/21 | 1.02 (0.30, 3.47) | 1.37 (0.60, 3.12) | ||||||
| 7–10 | 19/20 | 23/17 | 2.00 (0.61, 6.51) | 1.41 (0.59, 3.34) | ||||||
| 10–15 | 17/11 | 10/10 | 3.00 (0.86, 10.51) | 1.24 (0.45, 3.44) | ||||||
| 15–39 | 19/8 | 2/3 | 4.42 (1.21, 16.09) | 0.67 (0.10, 4.46) | ||||||
| Linear estimate per IQRc | 72/74 | 83/82 | 1.39 (1.00, 1.93) | 0.94 (0.73, 1.20) | 0.06 | |||||
| Oxychlordane | ||||||||||
| 8–19 | 14/24 | 16/28 | 1.00 | 1.00 | ||||||
| 19–25 | 17/23 | 21/23 | 1.29 (0.52, 3.22) | 1.44 (0.62, 3.37) | ||||||
| 25–33 | 18/15 | 28/24 | 2.05 (0.78, 5.35) | 1.74 (0.76, 3.97) | ||||||
| 33–41 | 13/3 | 21/15 | 6.15 (1.46, 25.93) | 1.81 (0.71, 4.66) | ||||||
| 41–354 | 12/6 | 9/10 | 3.45 (0.97, 12.20) | 1.18 (0.39, 3.52) | ||||||
| Linear estimate per IQRc | 74/71 | 95/100 | 1.27 (0.90, 1.79) | 0.97 (0.73, 1.29) | 0.23 | |||||
| aThe cutoffs between exposure groups were 25th, 50th, 75th, and 90th percentiles. bFor Wald test for interaction. cLinear estimate per IQR based on pesticide concentrations analyzed as continuous variables. | ||||||||||