Characteristic | Univariate cox regression before PSM | Multivariate cox regression before PSM | Multivariate cox regression after PSM | |||
---|---|---|---|---|---|---|
95%CL | P | 95%CL | P | 95%CL | P | |
Age | ||||||
Young(≤53 y) | Reference | Reference | Reference | |||
Old(> 53 y) | 1.834 (1.731–1.942) | < 0.001 | 1.549 (1.462–1.642) | < 0.001 | 1.573 (1.470–1.682) | < 0.001 |
Sex | ||||||
Male | Reference | Reference | Reference | |||
Female | 0.781 (0.743–0.821) | < 0.001 | 1.008 (0.957–1.061) | 0.769 | 1.023 (0.950–1.102) | 0.549 |
Race | ||||||
Black | Reference | Reference | Reference | |||
White | 0.969 (0.879–1.068) | 0.525 | ||||
Other | 0.924 (0.811–1.052) | 0.233 | ||||
Marital | ||||||
Single/Other | Reference | Reference | Reference | |||
Married | 0.911 (0.866–0.957) | < 0.001 | 0.843 (0.801–.887) | < 0.001 | 0.824 (0.769–0.884) | < 0.001 |
Size | ||||||
Dmax<=4 cm | Reference | Reference | Reference | |||
4 cm < Dmax<=7 cm | 3.886 (3.566–4.233) | < 0.001 | 2.324 (2.127–2.540) | < 0.001 | 2.433 (2.153–2.750) | < 0.001 |
Dmax> 7 cm | 11.792 (10.896–12.762) | < 0.001 | 3.710 (3.393–4.055) | < 0.001 | 4.299 (3.814–4.845) | < 0.001 |
Grade | ||||||
I | Reference | Reference | Reference | |||
II | 1.420 (1.287–1.567) | < 0.001 | 1.028 (0.931–1.135) | 0.583 | 1.051 (0.918–1.203) | 0.472 |
III | 4.020 (3.649–4.428) | < 0.001 | 1.514 (1.369–1.675) | < 0.001 | 1.615 (1.405–1.855) | < 0.001 |
IV | 10.814 (9.738–12.009) | < 0.001 | 2.229 (1.995–2.490) | < 0.001 | 2.264 (1.944–2.636) | < 0.001 |
Laterality | ||||||
Left | Reference | Reference | Reference | |||
Right | 0.931 (0.887–0.976) | 0.003 | 0.954 (0.910–1.001) | 0.054 | 0.940 (0.880–1.005) | 0.07 |
SEER historic stage A | ||||||
Localized | Reference | Reference | Reference | |||
Regional | 4.934 (4.637–5.249) | < 0.001 | 2.615 (2.443–2.798) | < 0.001 | 2.641 (2.402–2.903) | < 0.001 |
Distant | 25.576 (24.104–27. 138) | < 0.001 | 9.900 (9.172–10.685) | < 0.001 | 10.134 (9.108–11.276) | < 0.001 |
Radiation | ||||||
NO | Reference | Reference | Reference | |||
YES | 9.242 (8.574–9.962) | < 0.001 | 1.446 (1.334–1.568) | < 0.001 | 1.458 (1.309–1.625) | < 0.001 |
chemotherapy | ||||||
NO | Reference | Reference | Reference | |||
YES | 8.887 (8.369–9.438) | < 0.001 | 1.179 (1.100–1.263) | < 0.001 | 1.268 (1.152–1.396) | < 0.001 |