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Table 2 Tumor characteristics and operative outcomes before and after PSM

From: Efficacy of laparoscopic repeat hepatectomy compared with open repeat hepatectomy: a single-center, propensity score matching study

  Before propensity score matching After propensity score matching
LRH (n = 48) ORH (n = 31) P-value LRH (n = 17) ORH (n = 17) P-value
Tumor size (cm) 2.3 ± 1.0 4.2 ± 2.7 < 0.01 2.9 ± 0.9 2.8 ± 1.4 0.79
Number of tumors    0.13    0.67
 Single 42 (87.5) 23 (74.2)   14 (82.4) 13 (76.5)  
 Multiple 6 (12.5) 8 (25.8)   3 (17.6) 4 (23.5)  
Location (Couinaud section)    0.70    0.23
 Segments II, III, IV, V, VI 32 (66.7) 18 (58.1)   11 (64.7) 6 (35.3)  
 Segments VII, VIII, I 12 (25.0) 9 (29.0)   5 (29.4) 9 (52.9)  
 Bilober 4 (8.3) 4 (12.9)   1 (5.9) 2 (11.8)  
Pathological diagnosis    -    -
 HCC 36 (75.0) 26 (83.9)   13 (76.5) 14 (82.4)  
 ICC 3 (6.3) 2 (6.5)   1 (5.9) 1 (5.9)  
 CRLM 8 (16.6) 2 (6.5)   3 (17.6) 2 (11.8)  
 Hepatic benign tumor 1 (2.1) 1 (3.2)   0 0  
  1. PSM propensity score matching, LRH laparoscopic repeat hepatectomy, ORH open repeat hepatectomy, HCC hepatocellular carcinoma, ICC intrahepatic cholangiocarcinoma, CRLM colorectal liver metastases