Table 1 Characteristics of patients between non-lymphadenectomy and lymphadenectomy groups in unmatched and IPTW population
Unmatched Population N (%) | p value | IPTW, N (%) | p value | SMD | ||||
|---|---|---|---|---|---|---|---|---|
Characteristics | NLD (N = 637) | LD (N = 1312) | NLD (N = 1943.15) | LD (N = 1953.87) | ||||
Age (mean ± SD) | 64.23 ± 12.40 | 61.29 ± 10.84) | < 0.001 | 61.99 ± 12.48 | 62.22 ± 10.94 | 0.707 | 0.020 | |
Race | White | 531 (83.4) | 1098 (83.7) | 0.016 | 1618.6 (83.3) | 1628.3 (83.3) | 0.999 | 0.002 |
Black | 63 (9.9) | 91 (6.9) | 157.1 (8.1) | 158.3 (8.1) | ||||
Unknown | 43 (6.8) | 123 (9.4) | 167.4 (8.6) | 167.3 (8.6) | ||||
Grade | G1-G2 | 119 (18.7) | 195 (14.9) | 0.003 | 330.9 (17.0) | 319.4 (16.3) | 0.916 | 0.021 |
G3-G4 | 406 (63.7) | 937 (71.4) | 1313.9 (67.6) | 1339.0 (68.5) | ||||
Unknown | 112 (17.6) | 180 (13.7) | 298.4 (15.4) | 295.4 (15.1) | ||||
Laterality | Unilateral | 582 (91.4) | 1254 (95.6) | < 0.001 | 1824.8 (93.9) | 1832.7 (93.8) | 0.926 | 0.004 |
Bilateral | 55 (8.6) | 58 (4.4) | 118.4 (6.1) | 121.2 (6.2) | ||||
FIGO stage | I | 416 (65.3) | 770 (58.7) | 0.006 | 1198.9 (61.7) | 1196.9 (61.3) | 0.859 | 0.009 |
II | 221 (34.7) | 542 (41.3) | 744.2 (38.3) | 757.0 (38.7) | ||||
Histology | Serous | 408 (64.1) | 903 (68.8) | 0.040 | 1261.9 (64.9) | 1340.0 (68.6) | 0.126 | 0.077 |
Non-serous | 229 (35.9) | 409 (31.2) | 681.2 (35.1) | 613.9 (31.4) | ||||
Tumor size | < 5 cm | 400 (62.8) | 733 (55.9) | < 0.001 | 1129.1 (58.1) | 1138.2 (58.3) | 0.993 | 0.006 |
≥ 5 cm | 112 (17.6) | 370 (28.2) | 475.7 (24.5) | 479.8 (24.6) | ||||
Unknown | 125 (19.6) | 209 (15.9) | 338.3 (17.4) | 335.9 (17.2) | ||||
Radiotherapy | No | 626 (98.3) | 1282 (97.7) | 0.523 | 1906.9 (98.1) | 1913.5 (97.9) | 0.775 | 0.015 |
Yes | 11 (1.7) | 30 (2.3) | 36.2 (1.9) | 40.4 (2.1) | ||||
Chemotherapy | No | 270 (42.4) | 400 (30.5) | < 0.001 | 673.2 (34.6) | 677.5 (34.7) | 0.990 | 0.001 |
Yes | 367 (57.6) | 912 (69.5) | 1269.9 (65.4) | 1276.4 (65.3) | ||||