TABLE 1.
Patient demographic and clinical characteristics for uterine biopsy specimens
| Characteristic | NP (n = 6) | Pregnant (n = 7) | P |
|---|---|---|---|
| Age [yr (mean ± sd)] | 40.5 ± 4.9 | 28.7 ± 5.8 | 0.01 |
| Race and ethnicity [n (%)] | |||
| White | 2 (33) | 4 (57) | 0.39 |
| Asian | 1 (17) | 0 | |
| African American | 2 (33) | 0 | |
| Hispanic | 1 (17) | 3 (43) | |
| Gravidity, median | 3 | 3 | 0.71 |
| Parity (median) | 3 | 1 | 0.05 |
| Weight [kg (mean ± sd)] | 76.0 ± 16.5 | 81.8 ± 17.3 | 0.84 |
| BMI in kg/m2 at surgery or delivery (mean ± sd) | 29.4 ± 6.1 | 30.4 ± 7.8 | 1.00 |
| Gestational age [wk (mean ± sd)] | — | 39.1 ± 0.6 | — |
| Neonatal birth weight [g (mean ± sd)] | — | 3095.6 ± 352.2 | — |
| Premenopausal [n (%)] | 6 (100) | 7 (100) | — |
| Endometrial cycle stage by pathology report [n (%)] | |||
| Glandular | 1 (17) | — | — |
| Secretory | 3 (50) | — | — |
| Proliferative | 1 (17) | — | — |
| Unknown | 1 (17) | — | — |
| Not in labor [n (%)] | 6 (100) | 7 (100) | — |
| Indication for surgery [n (%)] | |||
| Abnormal uterine bleeding | 6 (100) | — | — |
| Uterine fibroids | 2 (33) | — | — |
| Pelvic pain | 1 (17) | — | — |
| Primary C-section for breech | — | 2 (25) | — |
| Repeat C-section | — | 4 (50) | — |
| Oligohydramnios | — | 1 (13) | — |
| Primary C-section for h/o fourth-degree laceration | — | 1 (13) | — |
Samples from NP women were obtained at benign hysterectomy surgeries. Samples from pregnant women were obtained from lower uterine segment biopsies collected after delivery by scheduled cesarean section. P value by Kruskal-Wallis or χ2 test, as appropriate. Total percentage per category may not be 100 because of rounding. For surgical indication, all diagnoses listed for the procedure are included (total count >N). C-section, cesarean section; h/o, history of.