Table 2 Hazard ratio of acute cholecystitis in the Cox proportional hazards model for OS and RFS
OS | RFS | |||||
|---|---|---|---|---|---|---|
Method | N | HR (95% CI) | p-value | N | HR (95% CI) | p-value |
Unadjusted | 218 | 3.98 (2.17, 7.32) | < 0.001 | 218 | 3.57 (1.80, 7.10) | < 0.001 |
PSM (one to one) | 50 | 2.41 (0.96, 6.06) | 0.061 | 50 | 6.69 (1.46, 30.6) | 0.014 |
IPW | 380 | 3.42 (1.63, 7.16) | 0.0011 | 380 | 3.68 (1.63, 8.30) | < 0.001 |
Stabilized IPW | 218 | 3.51 (1.64, 7.51) | 0.0012 | 218 | 3.84 (1.76, 8.37) | < 0.001 |
Truncated IPW | 373 | 3.16 (1.48, 6.75) | 0.0029 | 373 | 3.66 (1.62, 8.31) | 0.0018 |