Additional file 1: Table S1. of Low cigarette smoking prevalence in peri-urban Peru: results from a population-based study of tobacco use by self-report and urine cotinine

Comparison of cotinine subsample against balance of parent sample. Table S2. Comparison of those lost to follow up against those who completed follow up. Table S3. Estimates of smoking prevalence with 95% confidence intervals of smoking stratified by age, sex, and site. Table S4. Differences in estimates of daily smoking stratified by time between survey and urine sample. Table S5. Prevalence and means of chronic disease symptoms at baseline and 40 month follow up. (DOCX 25 kb