Fig. 2
The age-period-cohort analysis of CRD burden attributable to tobacco. (A) The age-period-cohort analysis of CRD attributable to tobacco in death and DALY; (B) The age-period-cohort analysis of COPD attributable to tobacco in death and DALY; (C) The age-period-cohort analysis of asthma attributable to tobacco in death and DALY. The red curve re DALYs, disability-adjusted life years presents the relationship between longitudinal age and rate, the blue curve illustrates the relationship between period and rate ratio, and the green curve depicts the relationship between cohort and rate ratio. CRD, chronic respiratory disease