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Table 2 Prevalence of environmental tobacco smoke exposure according to status of current smoking in 2005 Korea National Health and Nutrition Examination Study

From: Exposure to environmental tobacco smoke among South Korean adults: a cross-sectional study of the 2005 Korea National Health and Nutrition Examination Survey

  Non-smoker Current Smoker
  ETS exposure in home ETS exposure in workplace Any ETS exposure ETS exposure in home ETS exposure in workplace Any ETS exposure
  N % N % N % N % N % N %
Total 5747 18.3 2638 45.8 5747 36.1 2054 16.0 1333 62.6 2054 50.1
Male 1695 7.0 1035 54.2 1695 38.6 1814 14.1 1216 64.3 1814 51.3
Age             
   19-29 258 20.3 120 55.0 258 40.0 325 22.6 202 64.9 325 51.8
   30-39 327 3.1 300 54.0 327 50.7 484 13.4 424 66.3 484 64.0
   40-49 387 1.9 310 57.5 387 47.5 485 8.4 377 63.0 485 52.0
   50-59 299 4.5 192 52.9 299 37.0 280 13.6 156 60.6 280 41.1
   60-69 273 4.0 97 43.9 273 19.6 172 11.1 50 64.3 172 28.3
   70+ 151 5.6 16 46.4 151 8.7 68 10.1 7 68.5 68 16.0
   P-value * <.0001 0.04 <.0001 <.0001 0.40 <.0001
Female 4052 23.6 1603 39.9 4052 34.9 240 37.4 117 52.3 240 53.2
Age             
   19-29 712 25.4 360 33.9 712 37.4 41 39.5 25 56.5 41 63.0
   30-39 889 25.9 413 36.5 889 37.4 41 41.5 23 53.0 41 52.7
   40-49 953 26.2 510 45.9 953 42.7 53 53.8 34 61.8 53 79.8
   50-59 608 23.7 222 46.7 608 36.5 42 24.4 26 38.6 42 38.6
   60-69 506 15.4 86 34.4 506 19.6 19 19.5 7 41.0 19 27.1
   70+ 384 15.2 12 30.2 384 16.0 44 26.8 2 0.0 44 26.8
   P-value * <.0001 0.003 <.0001 0.04 0.18 <.0001
  1. * Significance determined using χ2 test of trends