Characteristic | Variable | Before PSM | After PSM | ||||
---|---|---|---|---|---|---|---|
univariate | multivariate | univariate | |||||
HR (95% CI) | P valuea | HR (95% CI) | P valuea | HR (95% CI) | P valuea | ||
PBT(OS) | no | reference | <0.001 | reference | 0.479 | reference | 0.070 |
yes | 1.889 (1.446–2.468) |  | 1.172 (0.756–1.816) |  | 1.429 (0.972–2.103) |  | |
PBT(DFS) | no | reference | 0.001 | reference | 0.799 | reference | 0.238 |
yes | 1.589 (1.221–2.067) |  | 0.944 (0.608–1.466) |  | 1.262 (0.858–1.856) |  |