The age-period-cohort (APC) results of IHD attributable to PM2.5 (APM and HPM) in Jiangsu from 1990 to 2019. (A–C) Fitted longitudinal age curves of IHD mortality (per 100,000) attributable to PM2.5 (APM and HPM), with (A) corresponding to both sexes, (B) corresponding to males, (C) and corresponding to females. (D–F) Rate ratio of each period compared with the reference (2000–2004) adjusted for age and nonlinear cohort effects and the corresponding 95% CI, with (D) corresponding to both sexes, (E) corresponding to males, (F) and corresponding to females. (G–I) Rate ratio of each cohort compared with the reference (cohort 1943–1947) adjusted for age and nonlinear period effects and the corresponding 95% CI, with (G) corresponding to both sexes, (H) corresponding to males, (I) corresponding to females. The dots and shaded areas denote mortality rates or rate ratios and their corresponding 95%CI.