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Association of body mass index and endometriosis
| Endometriosis (n=709) | Controls (n=807) | OR (95% CI) | |
| Normal weight (n, %) | 427 (60.3%) | 507 (62.9%) | Reference |
| Underweight (n, %) | 101 (14.2%) | 114 (14.1%) | 1.05 (0.391 to 1.42) |
| Overweight (n, %) | 146 (20.6%) | 165 (20.4%) | 1.05 (0.406 to 1.36) |
| Obese (n, %) | 35 (4.9%) | 21 (2.6%) | 1.979 (1.15 to 3.52)* |
**p=0.0185.
