| Variables | Categories | Remarks |
| Sex | Men/women | |
| Age | Years | |
| Employment | Employed status | Based on one question concerning the occupation status of five scores of employment.: “made redundant (1), unemployed (2), unstable employment (3), nonworking spouse and/or children (4), and employed (5)” |
| Family structure | Single/couple family/tow-generation family/three-generation family | |
| Perceived health status | Excellent/good/fair/poor | All in all, would you say your health is excellent, good, fair, or poor? Responses were rated on 4-point scale from “Excellent (4) to Poor (1)” |
| Life satisfaction | Very dissatisfied/dissatisfied/neither satisfied nor dissatisfied/satisfied/very satisfied | How satisfied are you with your daily life? Response were rated on 5-point scale from “Very dissatisfied (1) to very satisfied (5)” |
| Depression | Extremely stressed/very stressed/“normal” stress levels/slightly stress/no stress | Do you feel any stress in your life? Response were rated on 5-point scale from “Extremely stressed (1) to no stress (5)” |
| Social network | Based on 3 questions concerning the extent and frequency of three scores of social ties (close people, the role of community, and join group activities). Responses were rated on 3 items out of a total of 9 using a 3-point scale. | |
| Breslow’s seven health practices: | ||
| 7 - 8 h sleep per day | Yes/no | |
| Maintaining proper weight | Yes/no | |
| Moderate or no use of alcohol | Yes/no | |
| Regular physical activity | Yes/no | |
| Not eating between meals | Yes/no | |
| Eating breakfast | Yes/no | |
| Having never smoked cigarettes | Yes/no |