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Table 4 Concentration index decomposition of utilization of health physical examination

From: An economy-related equity analysis of health service utilization by women in economically underdeveloped regions of western China

  Two-week outpatient rate Annual inpatient rate
dF/dx CI Contribution % dF/dx CI Contribution %
Age (years) (Reference level = 15–24)     8.20     2.33
 25–34 0.000 0.0899 0.0000 0.00 −0.031*** 0.0899 −0.0063 −8.16
 35–44 0.008* 0.1228 0.0061 16.67 −0.052*** 0.1228 −0.0330 −42.75
 45–54 0.006 0.0297 0.0015 4.10 −0.039*** 0.0297 −0.0091 −11.79
 55–64 0.004 0.1136 −0.0038 −10.38 −0.029*** 0.1136 0.0259 33.55
 65-max 0.001 0.1308 −0.0008 −2.19 −0.022*** 0.1308 0.0243 31.48
Education status (Reference level = Illiterate)     −30.60     −2.85
 Primary school −0.001 0.0873 0.0002 0.55 −0.002 0.0873 0.0004 0.52
 Middle school −0.008 0.0370 −0.0011 −3.01 −0.010 0.0370 −0.0011 −1.42
 High school −0.020** 0.2121 −0.0055 −15.03 −0.017* 0.2121 −0.0040 −5.18
 Junior college and above −0.018 0.4313 −0.0048 −13.11 0.011 0.4313 0.0025 3.24
Marital status (Reference level = Unmarried)     −7.65     −21.24
 Married 0.017 0.0138 0.0019 5.19 0.118*** 0.0138 0.0114 14.77
 Widowed and divorced 0.039** 0.1189 −0.0047 −12.84 0.264*** 0.1189 −0.0278 −36.01
Employment status (Reference lvel = Employed)     7.10     8.81
 Retirement −0.002 0.4140 −0.0006 −1.64 0.040*** 0.4140 0.0085 11.01
 Student 0.013 0.0827 0.0005 1.37 −0.052*** 0.0827 −0.0017 −2.20
 Unemployed −0.001 0.0934 0.0027 7.38 0.013* 0.0934 −0.0020 −2.59
Economic status (Reference level = Minimum group)     190.71     115.80
 Lower group 0.009 0.3998 −0.0073 −19.95 0.019** 0.3998 −0.0134 −17.36
 Medium group 0.017** 0.0061 0.0002 0.55 0.013* 0.0061 0.0001 0.13
 Higher group 0.030*** 0.4071 0.0237 64.75 0.039*** 0.4071 0.0269 34.84
 Highest group 0.033*** 0.8011 0.0532 145.36 0.055*** 0.8011 0.0758 98.19
Basic medical insurance (Reference level = UEBMI)     −53.28     −23.32
 URBMI 0.014 0.2865 0.0023 6.28 0.016 0.2865 0.0023 2.98
 NRCMS 0.033*** 0.0576 −0.0149 −40.71 0.029** 0.0576 −0.0115 −14.90
 URRMI 0.038* 0.3651 −0.0077 −21.04 0.050** 0.3651 −0.0089 −11.53
 Uninsured 0.020 0.2275 0.0008 2.19 0.004 0.2275 0.0001 0.13
Urban and rural (Reference level = Rural)     24.04     4.53
 Urban 0.012** 0.2032 0.0088 24.04 0.005 0.2032 0.0035 4.53
Region (Reference level = Shannan)     −15.85     3.24
 Guanzhong −0.005 0.0281 0.0007 1.91 0.000 0.0281 0.0000 0.00
 Shanbei −0.028 0.1405 −0.0065 −17.76 0.012* 0.1405 0.0025 3.24
Adjusted family size −0.007** 0.0194 0.0031 8.47 −0.002 0.0194 0.0008 1.04
Illness in last two weeks (Reference level = Not sick)         2.59
 Sick   0.0245    0.041*** 0.0245 0.0020 2.59
Chronic disease (Reference level = Not sick     −12.30     −2.85
 Sick 0.156*** 0.0115 −0.0045 −12.30 0.090*** 0.0115 −0.0022 −2.85
Self-rated health (Reference level = Good)     −30.60     −14.64
 Bad 0.053*** 0.0709 −0.0112 −30.60 0.062*** 0.0709 −0.0113 −14.64
  1. *P < 0.05, **P < 0.01, ***P < 0.001