Table 2 Comparison of univariate covariates
Before PSM | P-value | After PSM | P-value | |||
|---|---|---|---|---|---|---|
Characteristics | Chemotherapy- (n = 1055) | Chemotherapy+ (n = 1589) | Chemotherapy- (n = 925) | Chemotherapy+ (n = 925) | ||
Age | < 0.001 | 0.254 | ||||
≤ 45 | 161 (15.3) | 273 (17.2) | 159 (17.2) | 183 (19.8) | ||
45–65 | 538 (51.0) | 946 (59.5) | 504 (54.5) | 503 (54.4) | ||
> 65 | 356 (33.7) | 370 (23.3) | 262 (28.3) | 239 (25.8) | ||
Race | 0.086 | 0.124 | ||||
White | 911 (86.4) | 1332 (83.8) | 793 (85.7) | 768 (83.0) | ||
Non-white | 144 (13.6) | 257 (16.2) | 132 (14.3) | 157 (17.0) | ||
Stage | < 0.001 | 0.328 | ||||
IA | 626 (59.3) | 544 (34.2) | 499 (53.9) | 475 (51.4) | ||
IB | 60 (5.7) | 92 (5.8) | 57 (6.2) | 49 (5.3) | ||
IC | 283 (26.8) | 731 (46.0) | 283 (30.6) | 319 (34.5) | ||
IIA | 86 (8.2) | 222 (14.0) | 86 (9.3) | 82 (8.9) | ||
Grade | < 0.001 | 0.530 | ||||
1 | 721 (68.3) | 841 (52.9) | 595 (64.3) | 581 (62.8) | ||
2 | 334 (31.7) | 748 (47.1) | 330 (35.7) | 344 (37.2) | ||
Laterality | < 0.001 | 0.147 | ||||
Right | 477 (45.2) | 635 (40.0) | 407 (44.0) | 383 (41.4) | ||
Left | 461 (43.7) | 660 (41.5) | 405 (43.8) | 401 (43.4) | ||
Other/Unknown | 117 (11.1) | 294 (18.5) | 113 (12.2) | 141 (15.2) | ||
Tumor size, cm | 0.044 | 0.888 | ||||
≤ 10 | 464 (44.0) | 707 (44.5) | 414 (44.8) | 416 (45.0) | ||
> 10 | 429 (40.7) | 690 (43.4) | 386 (41.7) | 391 (42.3) | ||
Unknown | 162 (15.4) | 192 (12.1) | 125 (13.5) | 118 (12.8) | ||
Histology | 0.001 | 0.226 | ||||
Serous | 289 (27.4) | 532 (33.5) | 257 (27.8) | 233 (25.2) | ||
Endometrioid | 766 (72.6) | 1057 (66.5) | 668 (72.2) | 692 (74.8) |