Chest
Original Research: COPDA Subnational Analysis of Mortality and Prevalence of COPD in China From 1990 to 2013: Findings From the Global Burden of Disease Study 2013
Section snippets
Methods
The general methods used in the GBD study have been published previously.5, 10, 11, 12, 13 Briefly, the GBD study provided a comprehensive assessment of age-specific, sex-specific, all-cause, and cause-specific mortality rates for all major diseases and injuries for 188 countries from 1990 to 2013. The present study focuses on mortality and the prevalence of COPD in China. The units of analyses for this study are the 33 province-level administrative units, including 31 mainland provinces,
Results
In 2013, there were 910,809 (95% UI, 817,530-1,015,436) deaths from COPD in China, accounting for 31.1% of total deaths from COPD in the world. Although the age-standardized COPD death rate decreased both worldwide and in China from 1990 to 2013, the death rate in China in 2013 was still similar to the global rate in 1990. The proportion of deaths from COPD among all noncommunicable disease (NCD) deaths decreased globally as well as in China. However, COPD accounted for a much larger proportion
Discussion
To our knowledge, our study is the most comprehensive summary of COPD prevalence and mortality at the provincial level in China and represents the most up-to-date and accurate information currently available for health policy makers. In particular, the standardized methods for estimates of COPD metrics used in the GBD study allow us to make comparisons on a global level as well as subnationally within China. Although strong national trends exist for COPD prevalence and mortality, this study
Acknowledgments
Author contributions: C. J. L. M. and M. Z. conceived of the study and are guarantors of the paper. P. Y. prepared the first draft and finalized the manuscript based on comments from all other authors. H. W., T. V., Y. L., and M. N. helped with data analysis and interpretation of the results. Y. L., J. L., S. L., X. Z., and L. W. participated in data preparation and analysis and provided comments on the manuscript. All authors contributed to the analysis and reviewed the manuscript.
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FUNDING/SUPPORT: The authors have reported to CHEST that no funding was received for this study.