Table 1.
Variables | Definitions and coding schema |
---|---|
Age | <55 = 1; 55~= 2; ≥65 = 3 |
Sex | Male = 1; Female = 2 |
Marital status | Categorized as married/cohabiting and widowed/unmarried/divorced/separated married/cohabiting = 1; widowed/unmarried/divorced/separated = 2 |
Spouse | Defined as whether a patient with stroke was accompanied by a spouse and categorized as yes or no No = 0; Yes = 1 |
Educational level | Categorized as illiterate, primary school, junior high school, or above Illiterate = 1; Primary school = 2; Junior high school and above = 3 |
Per capita monthly actual income | Categorized as < $72 (US dollars), $72 ~ $143, and >$143 <72 = 1; 72~= 2; ≥143 = ~3 |
Smoking status | Defined as at least one cigarette per day for the previous 6 months Never = 0; Current = 1; Former = 2 |
Drinking status | Defined as alcohol consumption 12 times per year Never = 0; Current = 1; Former = 2 |
Duration of illness (years) | Defined as how long since the first stroke and categorized as <1, ≥1 to <3, ≥3 to <5, or ≥5 years <1 year = 1; ≥1 to <3 years = 2, ≥3 to <5 years = 3, or ≥5 years = 4 |