Table 2 The incidence of liver recurrence in R0 and R1 liver resection before and after 2:1 propensity score matching
|  | Total (n = 368) | Before matching | After matching | ||||
|---|---|---|---|---|---|---|---|
R0 (n = 304) | R1 (n = 64) | P value | R0 (n = 119) | R1 (n = 62) | P value | ||
Recurrence | 257 (69.8) | 211 (69.4) | 46 (71.9) | 0.696 | 85 (71.4) | 45 (72.6) | 0.870 |
Liver recurrence | 188 (51.1) | 151 (49.7) | 37 (57.8) | 0.236 | 66 (55.5) | 37 (59.7) | 0.587 |
Recurrence site | |||||||
 Intrahepatic | 121 (32.9) | 95 (31.3) | 26 (40.6) | 0.380 | 43 (36.1) | 26 (41.9) | 0.736 |
 Extrahepatic | 69 (18.8) | 61 (20.1) | 8 (12.5) |  | 20 (16.8) | 7 (11.3) |  |
 Intrahepatic + extrahepatic | 67 (18.2) | 56 (18.4) | 11 (17.2) |  | 23 (19.3) | 11 (17.7) |  |
 Marginal recurrence | 66 (17.9) | 49 (16.1) | 17 (26.6) | 0.048* | 25 (21.0) | 17 (27.4) | 0.332 |