Table 3.
PCE exposure and risk of TTP > 6 months.
| Exposure | Cases/N | Crude RR (95% CI) | Adjusteda RR (95% CI) | Adjustedb RR (95% CI) |
|---|---|---|---|---|
| Cumulative PCE exposure (grams) | ||||
| None | 435/2202 | Reference | Reference | Reference |
| Any | 288/1624 | 0.97 (0.84, 1.11) | 0.83 (0.72, 0.96) | 0.87 (0.75, 1.01) |
| None | 435/2202 | Reference | Reference | Reference |
| > 0– < 10 | 90/546 | 0.89 (0.73, 1.08) | 0.79 (0.65, 0.96) | 0.82 (0.67, 1.01) |
| 10– < 100 | 118/663 | 1.03 (0.86, 1.23) | 0.89 (0.74, 1.07) | 0.94 (0.77, 1.13) |
| ≥ 100 | 80/415 | 0.99 (0.78, 1.26) | 0.81 (0.63, 1.03) | 0.84 (0.65, 1.07) |
| Average monthly PCE exposure (grams) | ||||
| None | 491/2518 | Reference | Reference | Reference |
| Any | 232/1308 | 0.97 (0.85, 1.11) | 0.89 (0.78, 1.02) | 0.91 (0.79, 1.05) |
| None | 491/2518 | Reference | Reference | Reference |
| > 0– < 1 | 121/798 | 0.85 (0.72, 1.00) | 0.76 (0.62, 0.91) | 0.79 (0.66, 0.95) |
| 1– < 2.5 | 47/215 | 1.11 (0.88, 1.40) | 1.03 (0.81, 1.30) | 1.02 (0.80, 1.29) |
| ≥ 2.5 | 64/295 | 1.19 (0.96, 1.48) | 1.12 (0.91, 1.39) | 1.10 (0.89, 1.36) |
a
Adjusted for maternal age.
b
Adjusted for maternal age, paternal age, year of pregnancy, maternal education, paternal occupation, first trimester cigarette smoking, first trimester alcohol intake, and pregnancy number.