Table 1 Baseline characteristics of study population.
Before PSM | P | After PSM | P | |||
|---|---|---|---|---|---|---|
CT (n = 2001) | No CT (n = 1888) | CT (n = 1217) | No CT (n = 1217) | |||
Age | < 0.01 | 0.48 | ||||
< 70 | 1156 | 610 | 483 | 500 | ||
≧ 70 | 845 | 1278 | 734 | 717 | ||
Race | 0.86 | 0.80 | ||||
White | 1528 | 1454 | 923 | 923 | ||
Black | 246 | 222 | 151 | 143 | ||
Other | 227 | 212 | 143 | 151 | ||
MS | < 0.01 | 0.42 | ||||
Married | 1295 | 1055 | 770 | 744 | ||
Single | 632 | 727 | 442 | 417 | ||
Unknown | 74 | 106 | 45 | 56 | ||
T stage | < 0.01 | 0.67 | ||||
T1a | 438 | 895 | 408 | 418 | ||
T1b | 1563 | 993 | 809 | 799 | ||
Grade | < 0.01 | 0.77 | ||||
I+II | 623 | 951 | 442 | 449 | ||
III+IV | 1378 | 937 | 775 | 768 | ||
Subtype | < 0.01 | 0.38 | ||||
HER2 enriched | 1304 | 1361 | 840 | 820 | ||
Triple-negative | 697 | 527 | 377 | 397 | ||
Follow-up duration (months) | 77.00 (59.00–98.00) | 78.50 (60.00–98.00) | 0.41 | 77.00 (59.00–99.00) | 80.00 (61.00–98.00) | 0.14 |
