Prevalence of copd in china BOLD Study Overall prevalence: 8.2% ·>43 milion Urban Rural口 Total 14 121127124 12 oo 10 8.8 7.8 8.2 4.95.45.1 2 Male Female Total Nanshan Zhong et al. Am J Respir Crit Care Med 2007, 176: 753-760 MBBS project, Zhongshan HospitalMBBS project, Zhongshan Hospital Prevalence of COPD in China --BOLD study • Overall prevalence: 8.2% • > 43 million Nanshan Zhong et al. Am J Respir Crit Care Med 2007, 176: 753-760 12.1 4.9 7.8 12.7 5.4 8.8 12.4 5.1 8.2 0 2 4 6 8 10 12 14 Male Female Total prevalence of COPD(%) Urban Rural Total * #