Table 5.
Association between urinary bisphenols and endometriosis by tertiles of urinary TBARS.
| OR | aOR 1 | aOR 2 | aOR 3 | |
|---|---|---|---|---|
| (95% CI) | (95% CI) | (95% CI) | (95% CI) | |
| TBARS [<1.50 ng/mL] | ||||
| BPA (ng/mL) | 1.4 (0.6–3.5) | 1.1 (0.4–2.9) | 0.9 (0.3–2.7) | 0.9 (0.3–2.8) |
| Σbisphenols (ng/mL) | 1.3 (0.5–3.6) | 0.9 (0.3–2.9) | 0.7 (0.2–2.5) | 0.7 (0.1–6.9) |
| TBARS [1.50–4.23 ng/mL] | ||||
| BPA (ng/mL) | 1.3 (0.7–2.6) | 1.3 (0.7–2.6) | 1.4 (0.7–3.0) | 1.5 (0.7–3.5) |
| Σbisphenols (ng/mL) | 1.2 (0.6–2.4) | 1.2 (0.6–2.5) | 1.4 (0.6–3.1) | 1.4 (0.6–3.5) |
| TBARS [>4.23 ng/mL] | ||||
| BPA (ng/mL) | 1.9 (1.0–3.5) | 2.0 (1.0–3.8) | 2.1 (1.0–4.4) | 2.0 (1.0–4.1) |
| Σbisphenols (ng/mL) | 2.0 (1.0–3.9) | 2.1 (1.0–4.2) | 2.2 (1.0–4.8) | 2.2 (1.0–4.6) |
OR: odds ratio; aOR: adjusted OR; TBARS: thiobarbituric acid reactive substances; BPA: bisphenol A; CI: confidence intervals. 1 Adjusted for urinary creatinine (mg/dL); 2 adjusted for urinary creatinine (mg/dL), age (yr), and body mass index (kg/m2); 3 adjusted for urinary creatinine (mg/dL), age (yr), body mass index (kg/m2), parity (nulliparous/primiparous or multiparous) and residence (rural or suburban/urban). Bold coefficients indicate statistically significant associations (p < 0.05)