Table 3 Univariate Cox model for 1-year mortality prediction and performance of each model in the validation population (n = 2716).

From: Contribution of medico-administrative data to the development of a comorbidity score to predict mortality in End-Stage Renal Disease patients

 

Univariate Cox HR (95% CI)

AUC* (95%CI)

Wright comorbidity index

Qualitative (vs moderate)

 

0.631 (0.621–0.639)

Low

0.45 (0.23–0.87)

 

High

3.23 (2.20–4.73)

 

Original Charlson comorbidity index

Continuous

1.18 (1.14–1.23)

0.622 (0.606–0.638)

Qualitative (vs 0)

 

0.621 (0.605–0.636)

1

1.38 (1.01–1.88)

 

2

2.27 (1.71–3.02)

 

3

1.96 (1.37–2.81)

 

4

2.32 (1.55–3.47)

 

≥5

3.20 (2.33–4.40)

 

Age-adjusted Charlson comorbidity index Continuous

1.23 (1.19–1.27)

0.703 (0.689–0.716)

Qualitative (vs[0–2])

 

0.692 (0.678–0.705)

3,4

2.63 (1.44–4.79)

 

5,6

6.34 (3.59–11.18)

 

≥7

10.16 (5.78–17.87)

 

Score from model 1

Continuous

1.39 (1.34–1.44)

0.789 (0.761–0.816)

Rennes score (model 2)

Continuous

1.45 (1.39–1.52)

0.794 (0.768–0.821)

Qualitative (vs[0–3])

 

0.775 (0.748–0.802)

4,5,6

4.70 (2.26–9.80)

 

7,8,9

13.71 (6.70–28.06)

 

10,11,12

44.23 (21.44–91.21)

 
  1. HR: Hazard Ratio; CI: Confidence Interval; *AUC was calculated for each model (continuous or categorical score).
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