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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Fertil Steril. 2012 Dec 1;99(3):790–795. doi: 10.1016/j.fertnstert.2012.11.013

Table 3.

In Utero exposures and odds of an endometriosis diagnosis, The ENDO Study – sensitivity analyses.

Exposures Visualized & Histologically-Confirmed Endometriosis vs. No Endometriosis (n=473) Endometriosis Stages 3–4 vs. No Endometriosis (n=339) Endometriosis vs. Women with Postoperative Diagnosis of Normal Pelvis (n=320)
Adjusted OR1 (95% CI) Adjusted OR1 (95% CI) Adjusted OR1 (95% CI)
Maternal Behavior
 Vitamins 1.68 (0.92, 3.05) 1.63 (0.86, 3.08) 1.51 (0.92, 2.48)
 Caffeine 1.17 (0.43, 3.20) 1.13 (0.40, 3.18) 1.22 (0.59, 2.53)
 Cigarettes 2.84 (0.94, 8.60) 1.88 (0.58, 6.09) 0.82 (0.30, 2.25)
 Alcohol 0.63 (0.33, 1.19) 0.97 (0.49, 1.92) 0.71 (0.40, 1.23)
Paternal Behavior
 Cigarettes 0.74 (0.34, 1.60) 0.91 (0.41, 2.03) 0.63 (0.35, 1.14)
Index Woman
Preterm 0.41 (0.18, 0.94) 0.47 (0.19, 1.15) 0.98 (0.42, 2.25)
Low Birth Weight2 1.19 (0.93, 1.52) 1.03 (0.79, 1.33) 0.95 (0.77, 1.16)

NOTE: In utero exposures were simultaneously included in model.

1

Model adjusted for clinical site (California/Utah), currently smoking (yes/no), age at menarche (years) and BMI (weight in kg/height in m2).

2

As lower birth is associated with increased risk of endometriosis in previous studies, birth weight entered the model so that the estimated OR/AOR confers the effect of every pound less in weight.