Variables | Before PSM | After PSM | ||
HR (95% CI) | P value | HR (95% CI) | P value | |
Group, F5~6 (vs. F0~4) | 1.340(1.104~1.626) | 0.003 | 1.284(0.993~1.660) | 0.057 |
Age at diagnosis, >60 (vs. ≤60) | 1.433 (1.270~1.617) | <0.001 | 1.302 (1.004~1.689) | 0.047 |
Sex, female (vs. male) | 1.247 (1.083~1.437) | 0.002 | 1.153 (0.844~1.574) | 0.371 |
AJCC T, 7th ed., T3~4 (vs. T12) | 0.791 (0.507~1.235) | 0.302 | 0.777 (0.318~1.901) | 0.581 |
AJCC N, 7th ed., N1 (vs. N0) | 0.393 (0.098~1.574) | 0.187 | / | 0.951 |
AJCC M, 7th ed., M1 (vs. M0) | 0.965 (0.310~3.000) | 0.950 | / | / |
Tumor size, >1 cm (vs. ≤1 cm) | 0.442 (0.142~1.377) | 0.159 | 0.377 (0.093~1.533) | 0.173 |
Race Black(vs. White) | 1.224 (0.988~1.515) | 0.064 | 0.912 (0.582~1.428) | 0.686 |
Race Other(vs. White) | 0.817 (0.692~0.964) | 0.016 | 0.593 (0.424~0.829) | 0.002 |
AFP, Negative (vs. Positive/elevated) | 1.046 (0.920~1.190) | 0.493 | 0.976 (0.734~1.298) | 0.868 |
Grade, Moderately differentiated; Grade II (vs. Well differentiated; Grade I) | 1.159 (0.999~1.344) | 0.051 | 1.422 (1.037~1.951) | 0.029 |
Grade, Poorly differentiated; Grade III (vs. Well differentiated; Grade I) | 0.819 (0.632~1.062) | 0.133 | 0.731 (0.452~1.180) | 0.199 |
Grade, Undifferentiated; anaplastic; Grade IV (vs. Well differentiated; Grade I) | 0.754 (0.242~2.352) | 0.627 | / | 0.952 |
Lymph involvement, Yes (vs. No ) | 0.714 (0.267~1.906) | 0.501 | / | 0.954 |
Distant metastasis, Yes (vs. No ) | 1.166 (0.436~3.113) | 0.760 | 1.000 (0.143~6.998) | 1.000 |