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Table 2 Contributions of regressors in percent (%) of concentration index

From: The evolution of socioeconomic status-related inequalities in maternal health care utilization: evidence from Zimbabwe, 1994–2011

  Four or more prenatal care visits Professional delivery assistance
  2005/06 2010/11 2005/06 2010/11
Variables Contribution % Contribution % Contribution % Contribution %
Household wealth 0.0175 45.84 0.0258 71.79 0.0170 36.14 0.0406 64.23
Age 0.0012 3.47 −0.0016 −4.61 0.0020 4.40 0.0018 2.99
Employed 0.0007 1.87 0.0005 1.47 0.0003 0.65 0.0004 0.57
Education 0.0103 26.69 0.0066 18.20 0.0041 8.80 0.0039 6.19
Religion 0.0046 12.01 0.0081 22.69 0.0029 5.98 0.0042 6.66
Marital status −0.0084 −21.93 −0.0048 −13.34 0.0020 4.11 0.0038 5.94
Read newspapers 0.0021 5.42 0.0093 26.04 0.0038 8.12 0.0044 6.92
Listen to radio 0.0092 23.95 0.0055 15.23 0.0015 3.12 0.0002 0.37
Health insurance 0.0049 12.88 0.0044 12.13 0.0016 3.48 0.0019 2.96
Family planning 0.0002 0.58 −0.0011 −3.03 −0.0001 −0.23 0.0003 0.52
Terminated pregnancy −0.0006 −1.48 0.0001 0.27 −0.0004 −0.90 −0.0001 −0.12
Urban residence 0.0082 21.35 −0.0014 −3.99 0.0141 30.18 0.0053 8.36
Region (nine provinces) −0.0197 −51.81 −0.0250 −69.64 −0.0035 −7.27 −0.0054 −8.56
Residual   21.15   26.76   3.42   2.98
Total 0.0302 78.85 0.0264 73.24 0.0453 96.58 0.0613 97.02
Erreygers corrected concentration index 0.111***[0.056, 0.171]   0.094***[0.057, 0.138]   0.286***[0.244, 0.329]   0.324***[0.283, 0.366]  
  1. Notes: ***Statistical significance at the 1% level. Estimates are weighted to be nationally representative. Contribution = the absolute contributions of explanatory variables to the concentration index. The corrected concentration indices together with their 95% confidence intervals (in brackets) are shown at the bottom of the table