Table 2.
Summary of general characteristics of variances
| Characteristic |
|---|
| Residential district |
| Small |
| Medium |
| Large |
|
|
| Gender |
| Male |
| Female |
|
|
| Current age |
|
|
| Current smoking |
| Nonsmoker |
| Past smoker |
| Current smoker |
|
|
| Smoking history |
| Length of smoking (yr) |
| Quantity of smoking (no. of cigarettes/1 day) |
|
|
| Numbers of drinking alcohol (number/1 wk) |
|
|
| Numbers of intensive exercise (number/1 wk) |
|
|
| Chronic disease of family members |
| No |
| Yes |
|
|
| Total cholesterol (mg/dL) |
|
|
| Body mass index (kg/m2) |
| Normal (18.5–24.9) |
| Overweight (25.0–29.9) |
| Obesity (≥30) |