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Table 3 The normalized concentration indices for MH use for whole sample, and rural and urban areas in Iran

From: Exploring socioeconomic inequalities in the use of medicinal herbs among Iranian households: evidence from a national cross-sectional survey

Sample n The Cn 95% Confidence interval
Urban 20,313 0.1754 0.1408 to 0.2101
Rural 18,546 0.1191 0.0779 to 0.1603
Total 38,859 0.1519 0.1254 to 0.1784
  1. Cn is the normalized relative concentration index