摘要
Heart disease(HD)is an important component of the spectrum of cardiovascular diseases(CVDs).China has the highest number of new HD cases in the world(1),posing significant health and economic burdens to society.However,its mortality trends at the national level and urban-rural differences remain unclear.This study,which identifies the age,period,and cohort effects of HD mortality trend changes,would assist the government in understanding future trends and optimizing public health policies.The HD mortality data by age,gender,and region were extracted from China’s National Health Commission’s death registration system,after quality control of ID and duplicate removal(2).The age-standardized mortality rate was calculated based on the world standard population using the direct method.Joinpoint regression was employed to determine HD mortality change patterns across time(3).The age-period-cohort model was used to estimate cohort and period effects(4).In this model,age refers to the individual’s age at a given time,period refers to the time at which the outcome is measured,and cohort refers to the group of individuals born in a particular period.This study revealed that HD mortality in China has rapidly increased over the past two decades,with men increasing faster than women and rural areas increasing faster than urban areas.
