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Table 1 Logistic regression analysis predicting 5-year mortality

From: Comorbidity and prognostic indices do not improve the 5-year mortality prediction of components of comprehensive geriatric assessment in hospitalized older patients

  

Univariate logistic regression

Multivariate

  

OR (IC95%)

p

R2(%)

AUC

AUC(*)

Covariates of adjustment

    

Age

(Continuous)

1.17(1.06,1.28)

0.001

14.6

0.70(0.59,0.81)

 

Sex

Female

Reference

    
 

Male

1.17(0.52,2.65)

0.708

0.2

0.52(0.40,0.64)

0.79(0.71,0.88)

Cognitive

No

Reference

    

Impairment

Mild

2.02(0.66,6.24)

    
 

Mod/severe

7.58(2.10,27.4)

0.007

15.3

0.69(0.59,0.79)

 

Barthel

4

Reference

0.056

11.2

0.72(0.62,0.82)

 

3

2.14(0.70,6.58)

2

2.18(0.55,8.68)

1

7.14(1.54,33.15)

Comorbidity indices

    

ChI

1

Reference

    
 

2

1.92(0.66,5.61)

0.144

7.0

0.64(0.53,0.75)

0.81(0.73,0.89)

 

3

2.30(0.67,7.90)

    
 

4

4.03(1.06,15.31)

    

DC

1

Reference

    
 

2

5.76(1.17,28.24)

0.106

8.1

0.58(0.45,0.70)

0.80(0.72,0.88)

 

3

2.38(0.84,6.75)

    
 

4

1.92(0.66,5.56)

    

CIRS

1

Reference

    
 

2

1.23(0.40,3.78)

0.601

2.4

0.54(0.42,0.66)

0.80(0.71,0.88)

 

3

0.97(0.34,2.80)

    
 

4

2.25(0.60,8.46)

    

ICED

1

Reference

    
 

2

0.70(0.21,2.34)

0.344

4.5

0.56(0.45,0.67)

0.79(0.71,0.87)

 

3

0.75(0.26,2.12)

    
 

4

2.17(0.58,8.20)

    

GIC

1

Reference

    
 

2

0.50(0.15,1.67)

0.012

16.1

0.66(0.56,0.76)

0.79(0.71,0.88)

 

3

1.04(0.27,4.01)

    
 

4

4.62(0.96,22.09)

    

Prognostic indices

     

BISEP

1

Reference

    
 

2

1.41(0.52,3.85)

0.010

17.2

0.73(0.63,0.82)

0.81(0.73,0.89)

 

3

6.92(1.29,37.05)

    
 

4

10.0(1.91,52.47)

    

PI

1

Reference

    
 

2

3.10(0.83,11.66)

0.005

20.9

0.72(0.62,0.83)

0.80(0.71,0.88)

 

3

5.85(1.52,22.57)

    
 

4

18.00(4.01,80.71)

    
  1. BISEP: Burden of Illness Score for Elderly Persons; ChI: Charlson Index; CIRS: Cumulative Illness Rating Scale; DC: Disease Count; ICED: Index of Coexistent Disease; GIC: Geriatric Index of Comorbidity; PI: Prognostic Index *Quartile ranges do not aply to ICED and GIC, as these indices are predefined into 4 classes
  2. (*) The multivariate AUC for the “covariates of adjustment” refers to the model including only age, sex, Barthel and cog impairment, whereas the multivariate AUC given for each index is the one obtained from the multivariate model including the formers and each one of the indices.