Table 1.
Baseline characteristics of endometriosis patients
| Variable name | All endometriosis patients | Endometriosis patients with ≥ 1 comorbidity |
|---|---|---|
| Age at endometriosis diagnosis | ||
| Mean (SD) | 36.9 (7.6) | 37.4 (7.3) |
| Median (IQR) | 38.0 (12.0) | 38.0 (11.0) |
| Insurance product, % (N) | ||
| EPO | 13.6% (24,530) | 15.5% (8382) |
| HMO | 14.5% (26,074) | 13.4% (7279) |
| Indemnity | 0.1% (130) | 0.0% (8) |
| Other | 0.1% (204) | 0.1% (49) |
| POS | 65.0% (117,187) | 64.9% (35,135) |
| PPO | 6.7% (12,153) | 5.9% (3217) |
| Census region, % (N) | ||
| Northeast | 8.6% (15,454) | 9.0% (4843) |
| Midwest | 24.1% (43,491) | 23.5% (12,702) |
| South | 51.3% (92,508) | 52.0% (28,143) |
| West | 15.9% (28,717) | 15.5% (8372) |
| Missing | 0.1% (103) | 0.0% (10) |
| Year of earliest endometriosis diagnosis, % (N) | ||
| 2006 | 15.1% (27,191) | 20.0% (10,831) |
| 2007 | 12.2% (22,080) | 15.0% (8132) |
| 2008 | 11.3% (20,289) | 14.0% (7589) |
| 2009 | 10.6% (19,124) | 13.3% (7194) |
| 2010 | 9.4% (16,920) | 11.2% (6077) |
| 2011 | 9.2% (16,540) | 10.1% (5476) |
| 2012 | 8.8% (15,813) | 8.5% (4594) |
| 2013 | 9.1% (16,332) | 5.9% (3214) |
| 2014 | 8.0% (14,501) | 1.8% (963) |
| 2015 | 6.4% (11,488) | 0.0% (0) |
| Sample size | 180,278 | 54,070 |
Unit of analysis is unique patient
SD standard deviation, IQR interquartile range, EPO exclusive provider organization, HMO health maintenance organization, POS point-of-service, PPO preferred provider organization