Table 3.
Baseline characteristics of PSM cohorts for FIGO stage IB-IIA.
| Variable | Unmatched (complete) dataset | Matched (1:1) dataset | ||||
|---|---|---|---|---|---|---|
| CDS (%) | CDS + RT (%) | P | CDS (%) | CDS + RT (%) | P | |
| (n = 4108) | (n = 2860) | (n = 1499) | (n = 1499) | |||
| Age | <0.001 | 0.938 | ||||
| <50 | 3052 (74.3) | 1897 (66.3) | 994 (66.3) | 996 (66.4) | ||
| ≥50 | 1056 (25.7) | 963 (33.7) | 505 (33.7) | 503 (33.6) | ||
| Race | 0.117 | 0.912 | ||||
| White | 3275 (79.7) | 2253 (78.8) | 1232 (82.2) | 1223 (81.6) | ||
| Black | 344 (8.4) | 280 (9.8) | 131 (8.7) | 135 (9.0) | ||
| Other | 489 (11.9) | 327 (11.4) | 136 (9.1) | 141 (9.4) | ||
| Marital status | 0.213 | 0.791 | ||||
| Single | 1060 (25.8) | 713 (24.9) | 329 (21.9) | 323 (21.5) | ||
| Married | 3048 (74.2) | 2147 (75.1) | 1170 (78.1) | 1176 (78.5) | ||
| Histologic type | <0.001 | 0.999 | ||||
| Squamous cell carcinoma | 2329 (56.7) | 1861 (65.1) | 1103 (66.9) | 1000 (66.7) | ||
| Adenocarcinoma | 843 (20.5) | 369 (12.9) | 204 (13.6) | 206 (13.7) | ||
| Adenosquamous carcinoma | 249 (6.1) | 213 (7.4) | 83 (5.5) | 84 (5.6) | ||
| Others | 687 (16.7) | 417 (14.6) | 209 (13.9) | 209 (13.9) | ||
| Primary site | 0.033 | 0.986 | ||||
| Cervix uteri | 2771 (67.5) | 2108 (70.6) | 1084 (72.3) | 1080 (72.0) | ||
| Endocervix | 1053 (25.6) | 661 (23.1) | 341 (22.7) | 348 (23.2) | ||
| Exocervix | 134 (3.2) | 76 (2.7) | 34 (2.3) | 33 (2.2) | ||
| Overlapping lesion of cervix uteri | 150 (3.7) | 105 (3.7) | 40 (2.7) | 38 (2.5) | ||
| Grade | <0.001 | 0.988 | ||||
| I | 725 (17.6) | 257 (9.0) | 163 (10.9) | 160 (10.7) | ||
| II | 1855 (45.2) | 1139 (39.8) | 621 (41.4) | 621 (41.4) | ||
| III | 1446 (35.2) | 1367 (47.8) | 690 (46.0) | 695 (46.4) | ||
| IV | 82 (2.0) | 97 (3.4) | 25 (1.7) | 23 (1.5) | ||
| Nodal status | <0.001 | 0.898 | ||||
| Node negative | 3944 (96.0) | 1861 (65.1) | 1366 (91.1) | 1364 (91.0) | ||
| Node positive | 164 (4.0) | 999 (34.9) | 133 (8.9) | 135 (9.0) | ||
| Size | <0.001 | 0.877 | ||||
| ≤2 cm | 2401 (58.4) | 792 (27.7) | 539 (36.0) | 536 (35.8) | ||
| 2–4 cm | 1333 (32.4) | 1232 (43.1) | 672 (44.8) | 664 (44.3) | ||
| >4 cm | 374 (9.1) | 836 (29.2) | 288 (19.2) | 299 (19.9) | ||
| Surgical method | <0.001 | 0.162 | ||||
| Local tumor destruction | 197 (4.8) | 281 (9.8) | 77 (5.1) | 66 (4.4) | ||
| Hysterectomy | 3904 (95.0) | 2551 (89.2) | 1420 (94.7) | 1426 (95.1) | ||
| Pelvic exenteration | 7 (0.2) | 28 (1.0) | 2 (0.1) | 7 (0.5) | ||
CDS: cancer-directed surgery; RT: radiotherapy.