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Table 1 Background characteristics of patients in group 1 and group 2

From: Cytoreductive surgery and perioperative intraperitoneal chemotherapy for peritoneal carcinomatosis in the elderly

  Group 1 (< 65 years old) Group 2 (≥ 65 years old) p
Total n = 611    
Number n (%) 487 (79.7) 124 (20.3)  
Gender n (%)    0.028
 Male 198 (40.7) 64 (51.6)  
 Female 289 (59.3) 60 (48.4)
Age mean (range) 48.4 (14–64) 69.9 (65–85)  
Year of operation n (%)    0.235
 1996–2002 30 (6.2) 3 (2.4)  
 2003–2007 126 (25.9) 31 (25.0)  
 2008–2013 331 (68.0) 90 (72.6)  
Diagnosis n (%)    0.118
 CRC (n = 184) 137 (28.1) 47 (37.9)  
 PMP (n = 157) 124 (25.5) 33 (26.6)  
 Mesothelioma (n = 53) 47 (9.7) 6 (4.8)  
 Appendiceal cancer (n = 137) 111 (22.8) 26 (21.0)  
 Others (n = 80) 68 (14.0) 12 (9.7)  
HIPEC n (%) 424 (87.1) 95 (76.6) 0.004
EPIC n (%) 237 (48.8) 60 (48.4)  
PCI mean (SD) 18.4 (11.2) 16.5 (1.7) 0.095
CC n (%)    0.264
 0 394 (81.7) 95 (77.2)  
 1 75 (15.6) 22 (17.9)  
 2 9 (1.9) 6 (4.9)  
 3 4 (0.8) 0 (0)  
Transfusion mean (SD) 6.3 (7.8) 4.8 (6.5) 0.048