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Table 2 Demographics between unresectable and successful groups

From: P.R.O.P.S. — A novel Pre-Operative Predictive Score for unresectability in patients with colorectal peritoneal metastases being considered for cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC)

Variables Unresectable (n = 4) Successful (n = 27) P value
Age (mean) 49 (SD = 5.6) 49 (SD = 2.6) 0.97
Gender (female) 25% (1/4) 63% (17/27) 0.28
Race    0.21
 Chinese 50%(2/4) 81.5% (22/27)  
 Malay 0% (0/4) 0% (0/27)  
 Indian 0% (0/4) 0% (0/27)  
 Others 50% (2/4) 18.5% (5/27)  
ECOG    0.55
 0 75% (3/4) 59% (16/27)  
 1 25% (1/4) 41% (11/27)  
Overall comorbidity
 Cardiovascular 25% (1/4) 30% (8/27) 0.85
 Pulmonary 100% (4/4) 11% (3/27) 0.78
 Diabetes mellitus 0% (0/4) 19% (5/27) 0.35
Primary tumour location    0.50
 Right-sided 75% (3/4) 44% (12/27)  
 Left-sided 25% (!/4) 48% (13/27)  
 Rectal 0% (0/4) 7% (2/27)  
Histology    0.00*
 Signet ring cell 50% (2/4) 0% (0/27)  
 Mucinous 50% (2/4) 26% (7/27)  
 Adenocarcinoma
  Well differentiated 0% (0/4) 7% (2/27)  
  Moderate differentiated 0% (0/4) 59% (16/27)  
  Poor differentiated 0% (0/4) 7% (2/27)  
PCI score (mean) 24 (SD = 2.6) 10 (SD = 1.1) 0.00*
Completeness of cytoreduction    NA
 CC-0 NA 41% (11/27)  
 CC-1 NA 52% (14/27)  
 CC-2 NA 7% (2/27)  
  1. *Statistically significant results as P value is less than 0.05