Fig. 4From: Estimating the global prevalence of chronic obstructive pulmonary disease (COPD): a systematic review and meta-analysisEstimated prevalence of COPD among individuals aged 40 years and older during 2016–2019 and 2020–2022. (a) Estimated prevalence of COPD among individuals aged 40 years and older during 2016–2019 and 2020–2022 by FR criteria. (b) Estimated prevalence of COPD between 2016–2019 and 2020–2022 by LLN criteriaBack to article page