an increasing trendP < 0.001
From 2004 to 2021, the PD mortality and standardized mortality rates in both urban and rural areas showed an increasing trend (urban: AAPC = 5.13%, AAPC ASMR =1.76%, P < 0.001; rural: AAPC = 8.40%, AAPC ASMR =4.29%, P < 0.001).