Variable | Codes/definition |
---|---|
Age | Continuous variable |
Sex | 0 = Male; 1 = Female |
Marital status | 0 = Non-single; 1 = Single (contains unmarried, divorced and widowed) |
Household income | 0 = Below-average incomes; 1 = Above-average incomes |
Location | 0 = Urban; 1 = Rural |
Education | Categorical variable (Primary school and lower; Junior middle school; Senior middle school and higher) |
Having any ADL limitation | 0 = No; 1 = Yes |
Having any chronic disease | 0 = No; 1 = Yes |
Instrumental support | 0 = No; 1 = Yes |
Emotional support | 0 = No; 1 = Yes |
Health insurance | 0 = No; 1 = Yes |
Old-age insurance | 0 = No; 1 = Yes |