Table 5

Multiple logistic regression for prediction of usage of MRI
Variables Odds ratio 95% CI P value
Physician
 No 1.00
 Yes 2.19 1.68–2.84 <0.001
Age (years)
 25–34 1.00
 35–44 0.90 0.66–1.22 0.49
 45–54 1.36 0.96–1.91 0.08
 55–65 1.63 1.02–2.58 0.04
Sex
 Female 1.00
 Male 0.96 0.66–1.39 0.83
Major diseases
 No 1.00
 Yes 4.33 2.68–7.00 <0.001
Urbanicity
 Urban 1.00
 Suburban 1.05 0.77–1.42 0.77
 Rural 1.20 0.66–2.18 0.56
Residential region
 North 1.00
 Central 1.32 0.94–1.85 0.11
 South 1.08 0.79–1.47 0.62
 East 1.28 0.59–2.77 0.53

MRI: magnetic resonance imaging; 95% CI: 95% confidence interval.

Wu et al.

Wu et al. BMC Health Services Research 2013 13:284   doi:10.1186/1472-6963-13-284

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