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

From: Measurement of health-related quality by multimorbidity groups in primary health care

Variables   Mobility Self-Care Usual Pain / Anxiety /
    Activities Discomfort Depression
Sample Odds Ratio Odds Ratio Odds Ratio Odds Ratio Odds Ratio
n = 306 95%CI 95%CI 95%CI 95%CI 95%CI
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 50      
2. History of significant acute disease 40 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 30 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 31 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 30 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 30 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 30 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 33 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 32 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
  1. MHS CRG Clinical Risk Groups
  2. CI confidence interval
  3. R2: coefficient of determination
  4. *p < 0.05, **p < 0.01, ***p < 0.001 by chi-square for the difference in the proportion of respondents referring to any problem (moderate or severe problem) across the variables