Additional file 1 of Associations between vaping and self-reported respiratory symptoms in young people in Canada, England and the US

Additional file 1: Table S1. Sample description and respiratory symptoms by characteristic for the full sample and for those who had not used other inhaled products in the past 30 days (unweighted data). Table S2. Respiratory symptoms in the past week broken down by other product use, weighted n (%). Table S3. Vaping product characteristics and respiratory symptoms by characteristic among those who had vaped in the past 30 days (unweighted data). Table S4. Associations between past-30-day smoking and/or vaping, lifetime/current vaping, number of days vaped in the past 30 days and any respiratory symptoms (weighted data). Table S5. Associations between past-30-day smoking and vaping, lifetime/current vaping, number of days vaped in the past 30 days and individual respiratory symptoms (weighted data). Table S6. Associations between vaping characteristics and any respiratory symptoms (weighted data). Table S7. Associations between vaping characteristics and individual respiratory symptoms (weighted data). Table S8. Sensitivity analysis. Associations between country and any respiratory symptoms for the full sample and those who had vaped in the past 30 days (weighted data). Table S9. Interaction models for country (weighted data). Table S10. Supplementary analysis. Associations between country and individual respiratory symptoms for the full sample and those who had vaped in the past 30 days (weighted data).