Table 7

Multiple logistic regression for prediction of usage of interventional procedures
Variables Odds ratio 95% CI P value
Physicians
 No 1.00
 Yes 0.67 0.54–0.83 <0.001
Age (y)
 25–34 1.00
 35–44 0.87 0.67–1.13 0.30
 45–54 1.48 1.11–1.97 0.007
 55–65 2.46 1.70–3.55 <0.001
Sex
 Female 1.00
 Male 1.46 1.03–2.08 0.04
Major diseases
 No 1.00
 Yes 3.16 2.00–4.98 <0.001
Urbanicity
 Urban 1.00
 Suburban 1.01 0.77–1.32 0.94
 Rural 1.60 0.98–2.61 0.06
Residential region
 North 1.00
 Central 0.80 0.59–1.08 0.14
 South 0.88 0.68–1.13 0.31
 East 0.46 0.19–1.08 0.07

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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