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Table 2 Multivariable analysis of mortality at 2 years

From: Risk scores to predict mortality 2 and 5 years after surgery for colorectal cancer in elderly patients

Effects Beta (s.e.) HR (95% CI) p value Scoring weight
Hgb (g/dl) at baseline and localisation
 Hgb > 10 and rectum (n = 67) 0.02 (0.35) 1.02 (0.51, 2.02) 0.96 0
 Hgb > 10 and colon (n = 231) Reference 0
 Hgb ≤ 10 and rectum (n = 6) − 0.31 (0.78) 0.74 (0.16, 3.36) 0.69 0
 Hgb ≤ 10 and colon (n = 62) 0.90 (0.26) 2.45 (1.47, 4.10) < 0.001 4
ASA class
 I, II, III (n = 334) Reference 0
 IV (n = 32) 1.27 (0.32) 3.55 (1.91, 6.58) < 0.001 5
Residual tumour classification
 R0 (n = 341) Reference 0
 R1 (n = 16) 0.30 (0.46) 1.34 (0.55, 3.28) 0.52 0
 R2 (n = 9) 2.06 (0.47) 7.82 (3.11, 19.62) < 0.001 7
TNM
 0, I, II (n = 218) Reference 0
 III (n = 120) 0.76 (0.28) 2.14 (1.23, 3.72) 0.007 3
 IV (n = 28) 1.17 (0.40) 3.21 (1.47, 7) 0.003 4
LODDS
 Less than or equal to − 1.36 (n = 309) Reference 0
 (− 1.36, − 0.53] (n = 30) 0.55 (0.35) 1.73 (0.87, 3.43) 0.12 0
 Greater than − 0.53 (n = 27) 1.12 (0.33) 3.08 (1.62, 5.86) < 0.001 4
Complications during admission
 No (n = 163) Reference 0
 Yes (n = 203) 0.55 (0.25) 1.73 (1.07, 2.80) 0.03 2
C-index* 0.80 (0.78, 0.87)  
GND test* < 0.001  
  1. Hgb haemoglobin (g/dl), Beta (s.e.) regression coefficient and its standard error, HR hazard ratio, CI confidence interval, C-index concordance index, GND the Greenwood-Nam-D'Agostino test, Reference: reference category. *Hospital-adjusted values