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Table 1 Characteristics of respondents, 2005-2008 (n = 3,699)

From: Increasing uptake of colorectal cancer screening in Korea: a population-based study

  2005 (n = 927) 2006 (n = 944) 2007 (n = 906) 2008 (n = 922) Pvalue
  % % % %  
Gender      
   Male 46.8 46.9 47.1 47.3 0.997
   Female 53.2 53.1 52.9 52.7  
Age (years)      
   50-59 47.8 48.4 48.8 49.3 0.972
   60-69 33.6 32.6 31.8 31.3  
   70-79 18.6 19.0 19.4 19.4  
Education (level)      
   Did not complete high school 62.9 63.1 60.3 59.1 0.153
   High school graduate or above 37.1 36.4 39.7 40.9  
Monthly household income (US$)      
   Less than 1,500 24.7 27.1 21.4 20.9 0.002
   1,500-3,000 55.1 48.6 52.1 51.2  
   3,000 or more 20.2 24.3 26.5 27.9  
Health insurance type      
   Medical aid 5.1 7.8 4.1 5.3 0.005
   National Health Insurance 94.9 92.2 95.9 94.7  
Self-reported health status      
   Fair/poor 16.8 15.8 15.2 12.7 0.277
   Good 28.7 28.0 27.8 28.3  
   Excellent/very good 54.5 56.2 57.0 59.0  
Smoking status      
   Never smoked 23.9 23.1 22.7 20.3 0.391
   Former smoker 14.8 13.1 14.6 16.1  
   Current smoker 61.3 63.8 62.7 63.6