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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