Table 1.
Demographic characteristics of endometriosis and non-endometriosis.
| Before propensity score matched | After propensity score matched | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Endometriosis (N = 15,179) |
Non-endometriosis (N = 91,074) |
Endometriosis (N = 13,988) |
Non-endometriosis (N = 13,988) |
|||||||
| n | % | n | % | p-value | n | % | n | % | p-value | |
| Age | 1 | 0.970 | ||||||||
| 20–39 | 8,170 | 53.8 | 49,020 | 53.8 | 7,970 | 57.0 | 7,967 | 57.0 | ||
| 40–49 | 6,008 | 39.6 | 36,048 | 39.6 | 5,229 | 37.4 | 5,216 | 37.3 | ||
| 50–54 | 779 | 5.1 | 4,674 | 5.1 | 640 | 4.6 | 657 | 4.7 | ||
| ≥55 | 222 | 1.5 | 1,332 | 1.5 | 149 | 1.1 | 148 | 1.1 | ||
| Mean ± SD | 38.4 ± 8.5 | 38.4 ± 8.5 | 1 | 37.8 ± 8.4 | 37.9 ± 8.5 | 0.104 | ||||
| Hypertension | 600 | 4.0 | 2,584 | 2.8 | <0.001 | 452 | 3.2 | 454 | 3.2 | 0.946 |
| Hyperlipidemia | 231 | 1.5 | 1,081 | 1.2 | 0.001 | 186 | 1.3 | 189 | 1.4 | 0.876 |
| Diabetes | 258 | 1.7 | 1,260 | 1.4 | 0.002 | 209 | 1.5 | 186 | 1.3 | 0.244 |
| Cancer | 325 | 2.1 | 742 | 0.8 | <0.001 | 228 | 1.6 | 243 | 1.7 | 0.486 |
| COPD | 82 | 0.5 | 272 | 0.3 | <0.001 | 71 | 0.5 | 66 | 0.5 | 0.668 |
| Autoimmune disease | 81 | 0.5 | 353 | 0.4 | 0.009 | 74 | 0.5 | 70 | 0.5 | 0.738 |
| Hysterectomy/oophorectomy | 2,654 | 17.5 | 1,481 | 1.6 | <0.001 | 1,463 | 10.5 | 1,453 | 10.4 | 0.845 |
| Stroke | 483 | 3.2 | 2,210 | 2.4 | <0.001 | 394 | 2.8 | 397 | 2.8 | 0.914 |
| Outpatient visits | 166.6 ± 140.8 | 115.4 ± 116 | <0.001 | 164.3 ± 139 | 162.9 ± 133.2 | 0.407 | ||||
| Corticosteroids | 9,169 | 60.4 | 48,396 | 53.1 | <0.001 | 8,413 | 60.1 | 8,430 | 60.3 | 0.836 |
| NSAIDs | 14,928 | 98.3 | 82,953 | 91.1 | <0.001 | 13,741 | 98.2 | 13,734 | 98.2 | 0.752 |
| Aspirin | 1,788 | 11.8 | 7,827 | 8.6 | <0.001 | 1,550 | 11.1 | 1,557 | 11.1 | 0.894 |
| Statin | 1,651 | 10.9 | 7,702 | 8.5 | <0.001 | 1,367 | 9.8 | 1,396 | 10.0 | 0.561 |
COPD, Chronic obstructive pulmonary disease.
NSAIDs, Non-steroidal anti-inflammatory drugs.