Table 1.
Characteristics of women in the operative cohort of the Endometriosis, Natural History, Diagnosis, and Outcomes Study (2007–2009) (N=473)
| Characteristic | Total (N=473 [100%]) | Endometriosis (n=166 [35%]) | PCOS (n=41 [9%]) | Endometriosis + PCOS (n=24 [5%]) | Neither (n=242 [51%]) | P value |
|---|---|---|---|---|---|---|
| Sociodemographic or lifestyle | ||||||
| Age (y), mean±SD | 33.0±7.0 | 32.1±6.9 | 31.5±6.9 | 31.3±6.0 | 34.0±7.1 | .01 |
| Study site | .15 | |||||
| Utah | 412 (87) | 151 (91) | 35 (85) | 22 (92) | 204 (84) | |
| California | 61 (13) | 15 (9) | 6 (15) | 2 (8) | 38 (16) | |
| Race and ethnicity | .63 | |||||
| Non-Hispanic or White | 354 (75) | 123 (74) | 32 (78) | 19 (79) | 180 (74) | |
| Hispanic White | 63 (13) | 23 (14) | 7 (17) | 1 (4) | 32 (13) | |
| Other | 56 (12) | 20 (12) | 2 (5) | 4 (17) | 30 (12) | |
| BMI (kg/m2), mean±SD | 28.0±8.0 | 26.0±7.1 | 31.9±9.2 | 28.7±7.8 | 28.8±8.2 | <.001 |
| Percentage above poverty level | 412 (88) | 147 (90) | 32 (78) | 23 (100) | 210 (88) | .06 |
| College graduate or higher | 189 (40) | 70 (42) | 14 (34) | 13 (54) | 92 (38) | .35 |
| Current smoker | 67 (14) | 19 (12) | 8 (20) | 1 (4) | 39 (16) | .19 |
| Current alcohol consumer | 188 (41) | 60 (37) | 16 (39) | 8 (33) | 104 (45) | .36 |
| Physical activity level | .61 | |||||
| Low | 75 (18) | 23 (16) | 6 (16) | 3 (13) | 43 (20) | |
| Moderate | 152 (36) | 53 (37) | 12 (32) | 12 (52) | 75 (35) | |
| High | 191 (46) | 69 (48) | 20 (53) | 6 (35) | 94 (44) | |
| Reproductive history | ||||||
| Ever sexually active | 407 (86) | 140 (84) | 33 (80) | 23 (96) | 211 (88) | .25 |
| Age of intercourse (y), mean±SD | 18.7±4.0 | 19.1±4.4 | 19.0±4.4 | 19.7±3.2 | 18.2±3.7 | .12 |
| Ever oral contraceptives | 403 (85) | 145 (87) | 33 (80) | 23 (96) | 202 (83) | .26 |
| History of STIs | 95 (20) | 23 (14) | 10 (24) | 7 (29) | 55 (23) | .08 |
| Subfertility (tried >12 mo) | 140 (30) | 64 (39) | 9 (22) | 17 (71) | 50 (21) | <.001 |
| Infertility treatment | 87 (18) | 38 (23) | 4 (10) | 14 (58) | 32 (13) | <.001 |
| Parity | .005 | |||||
| Never pregnant | 155 (33) | 71 (43) | 12 (29) | 10 (42) | 62 (26) | |
| Pregnant but no live birth | 46 (10) | 17 (10) | 5 (12) | 4 (17) | 20 (8) | |
| ≥1 live birth | 269 (57) | 77 (47) | 24 (59) | 10 (42) | 158 (66) |
Data are presented as number (percentage), unless otherwise indicated. To assess the differences among diagnosis of endometriosis, PCOS, endometriosis + PCOS, and neither, the analysis of variance or Kruskal-Wallis test was used for continuous variables, and the chi-square or Fisher exact test was used for categorical variables. There are missing data for age (n=0), race and ethnicity (n=0), BMI (n=5), poverty level (n=7), education (n=3), smoking (n=2), alcohol (n=13), and physical activity (n=55).
BMI, body mass index; PCOS, polycystic ovarian syndrome; SD, standard deviation; STI, sexually transmitted infection.
Schliep. Endometriosis and polycystic ovarian syndrome overlap. Am J Obstet Gynecol Glob Rep 2023.