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Table 1 Demographic characteristics of the studied cohort (n = 136,720)

From: Utilization patterns of Chinese medicine and Western medicine under the National Health Insurance Program in Taiwan, a population-based study from 1997 to 2003

Characteristic* No. of subjects %
Gender   
   Male 68,135 49.8
   Female 68,585 50.2
Age (years)   
   2–7 9,648 7.1
   8–14 11,933 8.7
   15–24 23,244 17.0
   25–34 26,903 19.7
   35–44 27,307 20.0
   45–54 17,273 12.6
   55–64 9,986 7.3
   ≥ 65 10,426 7.6
Socio-economic status   
   < US$640 54,729 40.0
   US$640-1279 29,788 21.8
   ≥ US$1280 11,137 8.1
   Farmers and fishermen 21,568 15.8
   Others 19,498 14.3
Severe disease   
   Without 132,835 97.2
   With 3,885 2.8
Region   
   Taipei 43,392 31.7
   Northern Taiwan 18,830 13.8
   Central Taiwan 26,732 19.6
   Southern Taiwan 21,241 15.5
   Kaohsiung and Pingtung 22,848 16.7
   East Taiwan 3,677 2.7
Remote Area   
   Mountainous regions 1,159 0.9
   Offshore islands 1,156 0.9
   General Population 134,405 98.2
  1. *Determined from 1997 prospectively.