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Table 3 Results from multinomial logistic regression of recurrence according to resection margins (RMs) in n = 242 patients with known recurrence status after primary resection for colorectal liver metastases

From: Surgery for colorectal liver metastases: the impact of resection margins on recurrence and overall survival

Recurrence RM OR 95% CI P value
Local R1, <1 mm 24.89 (4.77, 129.69) 0.0001
(n = 40) 1-4 mm 16.00 (3,22, 79.56) 0.001
5-9 mm 5.25 (0.95, 29.15) 0.058
≥10 mm 1.00 Reference  
Hepatic only R1, <1 mm 1.13 (0.38, 3.42) 0.827
(n = 52) 1-4 mm 1.36 (0.55, 3.41) 0.508
5-9 mm 0.56 (0.20, 1.59) 0.274
≥10 mm 1.00 Reference  
Extrahepatic* R1, <1 mm 2.25 (0.80, 6.33) 0.126
(n = 79) 1-4 mm 3.44 (1.45, 8.18) 0.005
5-9 mm 1.36 (0.67, 4.08) 0.276
  ≥10 mm 1.00 Reference  
  1. Reference category is ‘no recurrence’ (n = 67). Unknown recurrence pattern in n = 4 patients. *Extrahepatic: recurrence outside the liver with or without hepatic involvement. RM, resection margins; OR, odds ratio; CI, confidence interval.