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Table 3 Multivariable analysis of mortality at 5 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
Diagnosis tests performed within the first year of follow-up
 No (n = 96) 0.95 (0.38) 2.58 (1.21, 5.46) 0.01 4
 CAT (n = 152) 0.48 (0.37) 1.62 (0.79, 3.32) 0.19 0
 Colonoscopy (n = 15) 0.49 (0.61) 1.62 (0.50, 5.33) 0.42 0
 CAT + Colonoscopy (n = 50)   Reference   0
Any complication due to the treatment within the 2-year follow-up
 No (n = 292) Reference 0
 Yes (n = 21) 0.90 (0.34) 2.47 (1.27, 4.81) 0.008 4
Age at baseline & radiotherapy treatment within the 2-year follow-up
 < 85 years (n = 230) Reference 0
 85–89 year with no radiotherapy (n = 65) 0.47 (0.24) 1.60 (1.01, 2.55) 0.047 2
 85–89 year with radiotherapy or ≥ 90 years (n = 18) − 0.33 (0.52) 0.72 (0.26, 1.99) 0.53 0
Colostomy closure within the 2-year follow-up period
 No (n = 292) 1.60 (0.61) 4.93 (1.48, 16.41) 0.01 9
 Yes (n = 21) Reference 0
Medical complications within the 2-year follow-up period
 No (n = 173) Reference 0
 Yes (n = 140) 0.48 (0.21) 1.61 (1.06, 2.44) 0.03 2
Tumour recurrence within the 2-year follow-up period
 No recurrence (n = 274) Reference 0
 Yes (n = 39) 1.16 (0.25) 3.19 (1.96, 5.18) < 0.001 5
Readmissions within the 2-year follow-up period
 No (n = 240) Reference 0
 Only at 1 year or at 2nd year after the surgical intervention (n = 63) 0.37 (0.26) 1.44 (0.86, 2.41) 0.16 0
 At both measurements (n = 10) 1.21 (0.50) 3.35 (1.27, 8.85) 0.02 5
C-index* 0.73 (0.68, 0.78)  
GND test*   < 0.001   
  1. 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