supplementary document for "global and regional estimates of copd prevalence: systematic review and meta-analysis" by adeloye et al. (2015) includes supplementary tables with search terms from medline, embase, and global health databases. supplementary table 4 presents characteristics of retained copd studies globally. the study aims to estimate the global and regional prevalence of chronic obstructive pulmonary disease (copd). the authors conducted a systematic review and meta-analysis to provide updated global estimates of copd prevalence. the study included a wide range of studies from different regions around the world. the supplementary tables provide details on the search terms used to identify relevant studies. the authors emphasize the importance of accurate global estimates of copd prevalence for public health planning and policy-making. the study highlights the need for continued research and surveillance to better understand the burden of copd worldwide. the supplementary material supports the main findings of the study by providing additional information on the methodology and data sources. the authors note that some regions did not have overall estimates, indicating the need for further research in those areas. the study underscores the significance of copd as a major global health problem and the importance of addressing it through effective interventions and policies. the supplementary tables are essential for transparency and reproducibility of the study's findings. the authors conclude that the global prevalence of copd is higher than previously estimated, emphasizing the need for improved diagnosis and treatment strategies. the study provides valuable insights into the global burden of copd and highlights the importance of continued research in this area.supplementary document for "global and regional estimates of copd prevalence: systematic review and meta-analysis" by adeloye et al. (2015) includes supplementary tables with search terms from medline, embase, and global health databases. supplementary table 4 presents characteristics of retained copd studies globally. the study aims to estimate the global and regional prevalence of chronic obstructive pulmonary disease (copd). the authors conducted a systematic review and meta-analysis to provide updated global estimates of copd prevalence. the study included a wide range of studies from different regions around the world. the supplementary tables provide details on the search terms used to identify relevant studies. the authors emphasize the importance of accurate global estimates of copd prevalence for public health planning and policy-making. the study highlights the need for continued research and surveillance to better understand the burden of copd worldwide. the supplementary material supports the main findings of the study by providing additional information on the methodology and data sources. the authors note that some regions did not have overall estimates, indicating the need for further research in those areas. the study underscores the significance of copd as a major global health problem and the importance of addressing it through effective interventions and policies. the supplementary tables are essential for transparency and reproducibility of the study's findings. the authors conclude that the global prevalence of copd is higher than previously estimated, emphasizing the need for improved diagnosis and treatment strategies. the study provides valuable insights into the global burden of copd and highlights the importance of continued research in this area.