Table 3.
Basic characteristics of validation cohort (n = 72).
| Variable |
Lymph node positive (n = 9) |
Lymph node negative (n = 63) |
p |
|---|---|---|---|
| Age, years (mean) | 58.7 | 54.0 | 0.45a |
| Body mass index (mean) | 24.3 | 25.6 | 0.18b |
| Menopausal status, n (%) | |||
| Premenopausal | 2 (22.2%) | 18 (28.6%) | 1.00c |
| Perimenopausal | 7 (77.8%) | 45 (71.4%) | |
| Surgical approach, n (%) | 1.00c | ||
| Open | 2 (22.2%) | 17 (27.0%) | |
| Minimally invasive | 7 (77.8%) | 46 (73.0%) | |
| Tumor grade | 0.0001c | ||
| 1 | 1 (11.1%) | 50 (79.4%) | |
| 2 | 4 (44.4%) | 8 (12.7%) | |
| 3 | 4 (44.4%) | 5 (7.9%) | |
| Myometrial invasion | 0.023c | ||
| Inner 1/2 | 2 (22.2%) | 42 (66.7%) | |
| Outer 1/2 | 7 (77.8%) | 21 (33.3%) | |
| Number of lymph nodes removed | 0.08b | ||
| Median (range) | 26 (14–36) | 17 (11–57) | |
| Lymphocascular space invasion | <0.0001c | ||
| Present | 9 (100%) | 17 (27.0%) | |
| Absent | 0 (0%) | 46 (73.0%) |
a
t-test.
b
Mann–Whitney U-test.
c
Fisher-exact test.