Table 1.
Baseline characteristics between endometriosis and non-endometriosis groups.
| Characteristics | Total (n=1,590) |
Endometriosis (n=135) | Non-Endometriosis (n=1,455) |
P value |
|---|---|---|---|---|
| Age (years), mean (SD) | 39.20 (9.26) | 41.96 (7.85) | 38.95 (9.34) | <0.001 |
| Ethnicity, n (%) | <0.001 | |||
| Mexican American | 367 (23.1) | 9 (6.7) | 358 (24.6) | |
| Non-Hispanic Black | 382 (24.0) | 25 (18.5) | 357 (24.5) | |
| Non-Hispanic White | 702 (44.2) | 94 (69.6) | 608 (41.8) | |
| Other Races | 139 (8.7) | 7 (5.2) | 132 (9.1) | |
| Education level, n (%) | 0.001 | |||
| Less than high school | 425 (26.7) | 19 (14.1) | 406 (27.9) | |
| High school graduate | 374 (23.5) | 42 (31.1) | 332 (22.8) | |
| Above high school | 791 (49.7) | 74 (54.8) | 717 (49.3) | |
| Marital status, n (%) | 0.254 | |||
| Never married | 185 (11.6) | 10 (7.4) | 175 (12.0) | |
| Married | 955 (60.1) | 87 (64.4) | 868 (59.7) | |
| Other | 450 (28.3) | 38 (28.1) | 412 (28.3) | |
| Fertility status, n (%) | 0.192 | |||
| Nulliparous | 95 (6.0) | 12 (8.9) | 83 (5.7) | |
| ≥one birth | 1495 (94.0) | 123 (91.1) | 1372 (94.3) | |
| BMI, mean (SD) | 29.18 (7.36) | 28.89 (6.66) | 29.20 (7.43) | 0.635 |
| Diabetes, n (%) | 0.793 | |||
| No | 1469 (92.4) | 126 (93.3) | 1343 (92.3) | |
| Yes | 121 (7.6) | 9 (6.7) | 112 (7.7) | |
| Smoking status, n (%) | <0.001 | |||
| Never | 926 (58.2) | 57 (42.2) | 869 (59.7) | |
| Former | 260 (16.4) | 30 (22.2) | 230 (15.8) | |
| Now | 404 (25.4) | 48 (35.6) | 356 (24.5) | |
| Drinking status, n (%) | 0.127 | |||
| Never | 255 (16.0) | 15 (11.1) | 240 (16.5) | |
| Former | 278 (17.5) | 30 (22.2) | 248 (17.0) | |
| Now | 1057 (66.5) | 90 (66.7) | 967 (66.5) | |
| Oral contraceptive, n (%) | 0.054 | |||
| No | 319 (20.1) | 18 (13.3) | 301 (20.7) | |
| Yes | 1271 (79.9) | 117 (86.7) | 1154 (79.3) | |
| Fasting glucose (mg/dl), median [IQR] | 93.0 [87.0, 100.0] |
92.3 [86.9, 100.4] |
93.0 [87.1, 99.8] |
0.935 |
| Fasting triglyceride (mg/dl), median [IQR] | 100.0 [70.0, 146.0] |
119.0 [77.0, 179.0] |
99.0 [69.0, 143.0] |
0.001 |
| TyG index, mean (SD) | 8.51 (0.62) | 8.67 (0.64) | 8.49 (0.62) | 0.002 |
| TyG index Quartile, n (%) | 0.029 | |||
| Q1 | 397 (25.0) | 24 (17.8) | 373 (25.6) | |
| Q2 | 398 (25.0) | 31 (23.0) | 367 (25.2) | |
| Q3 | 398 (25.0) | 33 (24.4) | 365 (25.1) | |
| Q4 | 397 (25.0) | 47 (34.8) | 350 (24.1) |
IQR, interquartile range; SD, standard deviation; TyG index, triglyceride-glucose index; BMI, body mass index.