Figure 1
From: Socioeconomic inequalities in smoking habits are still increasing in Italy
Analysis of risk factors for smoking initiation and cessation in the GEIRD cross-sectional study, performed in 2007–2010. Columns are Odds Ratios (ORs), bars are 95% confidence intervals. The ORs of being an ever smoker (to the right) or an ex-smoker if ever smokers (to the left) were computed by two-level logistic regression models, comprising sex, age, education level, occupation, geographic area, season of response, percentile rank of cumulative response and type of contact. Retired (n=32) were not considered in the logistic model.