Table 1

Comparisons of patient demographics
Characteristic Experimental group Control group X2 p
(N=600) n % (N=600) n %
Gender 0.03 .862
  Male 286 47.7 289 48.2
  Female 314 52.3 311 51.8
Mean age (years) 60.6 ± 13.96 62.8 ± 13.31
Age (years) 10.56 .061
  ≤ 45 86 14.3 55 9.1
  46-55 144 24.0 145 24.2
  56-65 151 25.2 160 26.7
  66-75 110 18.3 105 17.5
  76+ 109 18.2 135 22.5
Marital status 2.47 .116
  Single 30 5.0 43 7.2
  Married 570 95.0 557 92.8
Education 1.28 .258
  < High school 313 52.2 332 55.4
  High school 287 47.8 267 44.6

Chen et al.

Chen et al. BMC Health Services Research 2013 13:202   doi:10.1186/1472-6963-13-202

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