Table 1

Summary statistics of study subjects (28 514 men and 36 683 women) from the Korea National Health and Nutrition Examination Survey, Korea

VariablesAllSmokerNon-smoker
Current smoking0.260 (0.002)1 (0.000)0 (0.000)
Price (real price, per pack of 20 cigarettes, unit: Korean won)2024.73 (8.54)1931.83 (9.15)2057.37 (9.24)
Equivalised household real income (unit: 10 000 Korean won)166.22 (1.24)155.02 (1.43)170.15 (1.39)
Cigarette consumption (number of cigarettes per day)3.909 (0.041)15.112 (0.081)0 (0.000)
Sex
 Male0.492 (0.002)0.887 (0.003)0.354 (0.002)
 Female0.508 (0.002)0.113 (0.003)0.646 (0.002)
Age group (years)
 19–290.207 (0.003)0.233 (0.005)0.198 (0.003)
 30–390.214 (0.003)0.261 (0.005)0.197 (0.003)
 40–490.211 (0.002)0.232 (0.004)0.204 (0.003)
 50–590.170 (0.002)0.152 (0.004)0.176 (0.002)
 60–690.110 (0.002)0.078 (0.002)0.121 (0.002)
 70 over0.089 (0.002)0.043 (0.002)0.105 (0.002)
Number of household members
 1–20.288 (0.004)0.281 (0.006)0.291 (0.004)
 3–40.566 (0.004)0.575 (0.006)0.563 (0.004)
 5 over0.146 (0.003)0.144 (0.004)0.146 (0.003)
Head of a family0.467 (0.003)0.623 (0.005)0.412 (0.003)
Education level
 Elementary school0.184 (0.003)0.125 (0.003)0.204 (0.003)
 Middle school0.102 (0.002)0.102 (0.003)0.102 (0.002)
 High school0.384 (0.003)0.448 (0.005)0.361 (0.003)
 College and above0.331 (0.004)0.325 (0.005)0.333 (0.004)
Occupational category
 Professionals, managers0.126 (0.002)0.126 (0.004)0.126 (0.002)
 White collar0.102 (0.002)0.114 (0.003)0.098 (0.002)
 Service and sales workers0.142 (0.002)0.169 (0.004)0.133 (0.002)
 Agriculture and fisheries0.047 (0.002)0.048 (0.003)0.046 (0.002)
 Construction0.202 (0.003)0.308 (0.005)0.165 (0.003)
 No job (housewife, student and so on)0.381 (0.003)0.235 (0.004)0.432 (0.003)
Residential area I
 Capital area0.492 (0.005)0.498 (0.007)0.490 (0.005)
 Non-capital, metropolitan city0.208 (0.005)0.200 (0.006)0.211 (0.005)
 Non-capital, others0.300 (0.005)0.302 (0.007)0.299 (0.006)
Residential area II
 Rural area0.813 (0.007)0.801 (0.008)0.817 (0.007)
 Non-rural area0.187 (0.007)0.199 (0.008)0.183 (0.007)
Alcohol drinking
 No drinking0.267 (0.002)0.116 (0.003)0.320 (0.003)
 Drinking0.733 (0.002)0.884 (0.003)0.680 (0.003)
Marital status
 Married, cohabitation0.671 (0.003)0.637 (0.006)0.683 (0.003)
 Married, separated0.008 (0.000)0.010 (0.001)0.008 (0.000)
 Widowed0.069 (0.001)0.029 (0.001)0.083 (0.002)
 Divorced0.031 (0.001)0.045 (0.002)0.027 (0.001)
 Never-married0.221 (0.003)0.279 (0.005)0.200 (0.003)
Level of stress
 Very little0.149 (0.002)0.123 (0.003)0.159 (0.002)
 Somewhat0.551 (0.002)0.516 (0.005)0.562 (0.003)
 Much0.246 (0.002)0.289 (0.004)0.231 (0.002)
 Too much0.054 (0.001)0.072 (0.002)0.048 (0.001)
Chronic disease
 Cardiovascular disease medical history0.030 (0.001)0.022 (0.001)0.033 (0.001)
 Cancer medical history0.026 (0.001)0.009 (0.001)0.032 (0.001)
Number of observations65 19715 38349 814