Table 3

Age adjusted baseline characteristics of 759 665 men aged 30–64 according to the level of socioeconomic status, Korea

VariablesSubjects (n)Levels of socioeconomic status
Level ILevel IILevel IIILevel IV
Cholesterol (mg/dl)3-150 705 561189.2191.0193.6194.1
Systolic blood pressure (mm Hg)3-150 705 363125.3124.3123.5123.5
Diastolic blood pressure (mm Hg)3-150 705 55981.481.180.980.8
Obesity (%) 704 746
 Body mass index <20 kg/m2 10.89.38.48.6
 Body mass index ⩾25 kg/m2 19.623.525.424.2
Smoking habit (%) 705 755
 Current smoker67.261.657.049.0
 Former smoker14.918.020.023.2
Alcohol drinking habit706 129
 Occasional drinker (%)52.652.552.552.5
 Frequent drinker (%)21.922.222.322.0
Area of residency (%) 759 665
 Large city48.346.950.561.7
 County23.221.715.98.0
“High” group occupation (%) 759 5303.917.132.667.4
  • 3-150 Analysis of covariance procedure: p<0.01. Mantel-Haenszel χ2 procedure: p<0.01.