Table 2.
Comparison of study participants by cohort, ENDO Study (n=626).
| Characteristic | Operative Cohort (n=495) n (%) | Population Cohort (n=131) n (%) |
|---|---|---|
| Age (in years): | ||
| <30 | 169 (34) | 52 (40) |
| ≥30 | 325 (66) | 79 (60)a |
| Mean (±SD) | 33 (±7) | 32 (±8) |
| Race/ethnicity: | ||
| Hispanic | 68 (14) | 14 (11) |
| Nonhispanic white | 369 (75) | 106 (81) |
| Hispanic black | 8 (2) | 2 (2) |
| Asian/Islander/Native | 29 (6) | 5 (4) |
| Other/multi-racial | 21 (4) | 4 (3) |
| Marital status: | ||
| Married/living as married | 371 (76) | 78 (60) |
| Other | 119 (24) | 53 (41)b |
| Household income:c | ||
| Below poverty line | 55 (11) | 16 (12) |
| Within 180% of poverty | 58 (12) | 17 (13) |
| Above poverty | 374 (77) | 97 (75) |
| Gravidity (# pregnancies): | ||
| Nulligravida | 162 (33) | 52 (40) |
| Gravid | 331 (67) | 79 (60) |
| Mean (±SD) | 2 (±2) | 2 (±2) |
| Parity (# live births): | ||
| Nulliparous | 211 (43) | 64 (49) |
| Parous | 284 (57) | 67 (51) |
| Mean (±SD) | 1 (±2) | 1 (±2) |
| Primary reason for surgery: | ||
| Pelvic pain | 206 (42) | -- |
| Pelvic mass | 74 (15) | -- |
| Menstrual irregularities | 60 (12) | -- |
| Fibroids | 49 (10) | -- |
| Tubal ligation | 48 (10) | -- |
| Infertility | 35 (7) | -- |
a
p<0.05;
b
p= 0.001. SD, denotes standard deviation
c
Based upon the 2007 HHS Poverty Guidelines accounting for the numbers of persons in the household for the 48 contiguous states and District of Columbia.
[--], population cohort did not undergo surgery.