Table 4 Logistic regression models of the effect of MHS, age and gender on the “moderate/severe problems” for each dimension of HRQL

Intercept

0.01

0.00

0.03

0.15

1.07

Age

1.04***

1.01

1.01

1.01

0.98**

[1.02, 1.07]

[0.98, 1.03]

[0.99, 1.03]

[1.00, 1.03]

[0.91, 0.99]

Gender

1.65

2.03

2.00*

1.40

1.28

[0.93, 2.93]

[0.99, 4.16]

[1.12, 3.57]

[0.83, 2.35]

[0.77, 2.12]

MHS CRG

1. Healthy

2. History of significant acute disease

1.74

–

1.54

1.69

0.61

[0.42, 7.23]

–

[0.38, 6.19]

[0.68, 4.19]

[0.23, 1.62]

3. Single minor chronic disease

3.49

–

2.72

1.80

1.92

[0.86, 14.13]

–

[0.66, 11.21]

[0.67, 4.85]

[0.73, 5.06]

4. Minor chronic diseases in multiple organ systems

3.09

0.91

4.06*

5.14**

2.60

[0.82, 11.66]

[0.00, 0.00]

[1.10, 15.06]

[1.89, 14.01]

[0.98, 6.92]

5. Significant chronic disease

4.19*

–

6.18**

4.24**

3.04*

[1.10, 15.94]

–

[1.68, 22.70]

[1.58, 11.37]

[1.14, 8.08]

6. Significant chronic diseases in multiple organ systems

15.97***

–

25.07***

9.75***

8.23***

[4.30, 59.29]

–

[6.67, 94.28]

[3.18, 29.89]

[2.88, 23.53]

7. Dominant chronic disease in 3 or more organ systems

7.90**

–

13.39***

4.37**

3.50*

[2.09, 29.85]

-]

[3.47, 51.76]

[1.49, 12.76]

[1.20, 10.20]

8. Dominant/Metastatic malignancy

6.78**

–

16.95***

9.65***

3.15*

[1.89, 24.38]

–

[4.64, 61.85]

[3.25, 28.66]

[1.16, 8.51]

9. Catastrophic

14.59***

–

24.69***

3.05*

3.41*

[4.03, 52.84]

–

[6.72, 90.73]

[1.16, 8.1]

[1.28, 9.04]

Chi squared

85.02

69.18

83.35

50.64

30.09

Cox & Snell’s R²

0.24

0.20

0.24

0.15

0.09

Nagelkerke’s R²

0.34

0.35

0.33

0.20

0.13

Global percentage correctly classified

75.8

84.3

75.5

67.3

68.3