Age | Less than 30*; 30–44; 45–59; 60–74; 75 and older |
Sex | Male*; female |
Marital status | Married or living with partner*; single; divorced; widowed |
Self rated health (on a scale From 0 to 10) | Low score (from 0 to 6)*; medium-low score (equal to 7); medium-high score (equal to 8); high score (equal to 9 or 10) |
Number of diseases† | 0*; 1 or 2; 3 or 4; more than 4 |
Educational achievement level | Primary school or less*; secondary school; university; student |
Occupational status‡ | Unskilled blue collar worker*; skilled blue collar worker; lower level white collar worker; mid-level position; upper level white collar worker |
Employment status | Working*; unemployed; other |
Household income per capita§ | First quartile*; second quartile; third quartile; fourth quartile |
Health insurance status | Basic insurance only*; supplementary insurance; payments waived for medical reasons or because of poverty |