Table 1.
The descriptive characteristics of T1bN0M0 TNBC before and after PSM
| Before PSM | After PSM | |||||
|---|---|---|---|---|---|---|
| Characteristics | No_Chemo | Chemo | P value | No_Chemo | Chemo | P value |
| 694 | 1155 | 529 | 529 | |||
| Age (mean (SD)) | 67.24(11.71) | 57.06(10.29) | <0.001 | 63.38(10.42) | 62.82(9.18) | 0.356 |
| Marital_status (%) | ||||||
| Married | 393(56.6) | 772(66.8) | <0.001 | 335(63.3) | 327(61.8) | 0.657 |
| Unmarried | 301(43.4) | 383(33.2) | 194(36.7) | 202(38.2) | ||
| Race (%) | ||||||
| White | 537(77.4) | 871(75.4) | 0.366 | 407(76.9) | 389(73.5) | 0.226 |
| Nonwhite | 157(22.6) | 284(24.6) | 122(23.1) | 140(26.5) | ||
| Median_household_income (%) | ||||||
| Quartile 1 | 211(30.4) | 375(32.5) | 0.058 | 162(30.6) | 156(29.5) | 0.929 |
| Quartile 2 | 181(26.1) | 241(20.9) | 140(26.5) | 138(26.1) | ||
| Quartile 3 | 166(23.9) | 279(24.2) | 121(22.9) | 130(24.6) | ||
| Quartile 4 | 136(19.6) | 260(22.5) | 106(20.0) | 105(19.8) | ||
| Grade (%) | ||||||
| I+II | 261(37.6) | 282(24.4) | <0.001 | 172(32.5) | 173(32.7) | 1.000 |
| III | 433(62.4) | 873(75.6) | 357(67.5) | 356(67.3) | ||
| Radiation (%) | ||||||
| None | 293(42.2) | 447(38.7) | 0.148 | 203(38.4) | 226(42.7) | 0.168 |
| Yes | 401(57.8) | 708(61.3) | 326(61.6) | 303(57.3) | ||
SD, standard deviation.