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Table 3 Logistic regression analyses: final backward elimination model of determinants of mental health service utilization

From: Determinants of mental health service use in the national mental health survey of the elderly in Singapore

   OR (95% C.I.)   Wald df P
Psychiatric disorder: No 1      
  Yes 5.27 2.40 11.6 17.09 1 <0.001
Disability from mental illness (≥ 1 month) No 1      
  Yes 79.9 19.3 331.7 36.42 1 <0.001
Self-rated mental health: Excellent or very good 1    6.997 2 0.030#
  Good 0.84 0.38 1.85 0.183 1 0.67
  Fair of poor 2.63 0.94 7.33 3.408 1 0.065
Gender Male 1      
  Female 2.106 .953 4.655 4.788 1 0.029
Formal education No 1      
  Yes 2.40 1.14 5.07 5.219 1 0.021
Household income per month < $1,000 1    7.396 2 0.026#
  $1,000 – $2,999 0.64 0.30 1.37 1.291 1 0.256
  >$3,000 0.31 0.13 0.72 7.336 1 0.007
Limited by financial resources for medical care No at all 1      
  Yes, to some or great extent 0.38 0.19 0.76 7.479 1 0.006
Caregiver available No 1      
  Yes 0.20 0.07 0.59 8.396 1 0.004
Mental illness can be cured Not at all 1    6.165 2 0.046#
  To some extent 4.01 0.96 16.70 3.649 1 0.056
  To a great extent 6.89 1.47 32.3 5.982 1 0.014
Professionals can do little to help Disagree or strongly disagree 1    10.91 2 0.004#
  Neither 2.78 1.33 5.81 7.431 1 0.006
  Agree or strongly agree 3.35 1.41 7.97 7.491 1 0.006
  1. # p for trend
  2. Multivariate model Nagelkerke R2 = 0.482