Multiple variables analysis: Poisson regression model for influenza vaccination among the elderly (n = 1,341).

Source: SABE study, 2010.*PR—Prevalence Ratio.**(95% CI)- 95% Confidence Interval.(1) Socio-demographic characteristics adjusted for themselves: age and living alone(2) Covariates assessing behavior and self reported health status adjusted for socio-demographic characteristics: a) physical activity, age and living alone; b) number of chronic diseases, age and living alone; c) hypertension, age and living alone; d) diabetes mellitus, age and living alone; e) cardiovascular disease, age and living alone(3) Covariates on use of health services adjusted for themselves, for socio-demographic characteristics and for behavior and self reported health status: received health care during the last year, type of health service, age and living alone, physical activity, number of chronic diseases.São Paulo, Brazil, 2010.