Table 1.
Patient characteristics of unmatched and matched populations
| Variables | Unmatched
|
Matched
|
||||||
|---|---|---|---|---|---|---|---|---|
| Patients (N) | Surgery, n (%) | RCT, n (%) | p-value | Patients (N) | Surgery, n (%) | RCT, n (%) | p-value | |
| Age (years) | ||||||||
| <50 | 2,564 | 2,504 (68.5) | 60 (51.7) | <0.001 | 116 | 56 (48.3) | 60 (51.7) | 0.599 |
| ≥50 | 1,205 | 1,149 (31.5) | 56 (48.3) | 116 | 60 (51.7) | 56 (48.3) | ||
| Race/ethnicity | ||||||||
| White | 2,926 | 2,839 (77.7) | 87 (75.0) | 0.001 | 171 | 84 (72.4) | 87 (75.0) | 0.192 |
| Black | 434 | 410 (11.2) | 24 (20.7) | 44 | 20 (17.2) | 24 (20.7) | ||
| Others | 409 | 404 (11.1) | 5 (4.3) | 17 | 12 (10.3) | 5 (4.3) | ||
| Tumor grade | ||||||||
| G1 | 178 | 174 (4.8) | 4 (3.4) | 0.885 | 11 | 7 (6.0) | 4 (3.4) | 0.407 |
| G2 | 1,722 | 1,669 (45.7) | 53 (45.7) | 97 | 44 (37.9) | 53 (45.7) | ||
| G3 and 4 | 1,869 | 1,810 (49.5) | 59 (50.9) | 124 | 65 (56.0) | 59 (50.9) | ||
| Tumor size (mm) | ||||||||
| Mean | 22 | 22 | 31 | <0.001 | 31 | 31 | 31 | 0.815 |
| FIGO stage | ||||||||
| IB1 | 3,520 | 3,428 (93.8) | 92 (79.3) | <0.001 | 183 | 91 (78.4) | 92 (79.3) | 0.872 |
| IIA1 | 249 | 225 (6.2) | 24 (20.7) | 49 | 25 (21.6) | 24 (20.7) | ||
| Nodal stage | ||||||||
| Negative | 3,099 | 3,009 (82.4) | 90 (77.6) | 0.185 | 177 | 87 (75.0) | 90 (77.6) | 0.643 |
| Positive | 670 | 644 (17.6) | 26 (22.4) | 55 | 29 (25.0) | 26 (22.4) | ||
Abbreviations: G1, well differentiated; G2, moderately differentiated; G3, poorly differentiated; G4, undifferentiated; FIGO, International Federation of Gynecology and Obstetrics; RCT, radiochemotherapy.