Additional file 1: Table S1. of The short term burden of ambient fine particulate matter on chronic obstructive pulmonary disease in Ningbo, China

Life expectancy for Chinese population (averaged value for 2011-2015). Table S2. Threshold selection based on the Akaike Information Criterion value. Table S3. Sensitivity analyses of associations of PM2.5 and PM10 with YLL and ER of COPD deaths. Figure S1. Distribution of daily deaths and daily YLL of COPD in Ningbo, 2011-2015, China. Figure S2. Auto-correlation function for residuals of PM2.5 single pollutant models for YLL of COPD at lag04. Figure S3. Auto-correlation function for residuals of PM2.5 single pollutant models for deaths of COPD at lag04. Figure S4. Auto-correlation function for residuals of PM10 single pollutant models for YLL of COPD at lag04. Figure S5. Auto-correlation function for residuals of PM10 single pollutant models for deaths of COPD at lag04. (DOCX 21 kb)