Table 1 The ASMR, ASIR, ASPR, and ASDR of IHD among WCBA in China in 1990 and 2021, with the percentage change and AAPCs of age groups of IHD among WCBA in China

ASMR

15–49

10.34(8.75–12.06)

5.17(4.14–6.33)

−50.00%

−2.23

−2.49

−1.96

 < 0.001

15–19

0.13(0.11–0.14)

0.06(0.05–0.07)

−53.85%

20–24

0.22(0.18–0.26)

0.14(0.11–0.17)

−36.36%

−1.51

−2.06

−0.96

 < 0.001

25–29

0.40(0.33–0.48)

0.21(0.16–0.26)

−47.50%

−2.31

−2.91

−1.71

 < 0.001

30–34

1.01(0.85–1.21)

0.50(0.39–0.63)

−50.50%

−2.17

−2.74

−1.59

 < 0.001

35–39

1.60(1.34–1.87)

0.75(0.60–0.93)

−53.13%

−2.44

−2.71

−2.17

 < 0.001

40–44

2.51(2.11–2.92)

1.23(0.99–1.51)

−51.00%

−2.27

−2.64

−1.91

 < 0.001

45–49

4.48(3.82–5.18)

2.29(1.83–2.78)

−48.88%

−2.08

−2.55

−1.62

 < 0.001

ASIR

15–49

63.52(38.92–91.27)

79.93(49.43–113.88)

25.83%

0.76

0.69

0.82

 < 0.001

15–19

0.47(0.06–1.08)

0.47(0.06–1.08)

0.00%

0.00

0.00

0.00

20–24

1.52(0.84–2.38)

1.57(0.87–2.47)

3.29%

0.12

0.07

0.16

 < 0.001

25–29

3.24(1.56–5.06)

3.38(1.61–5.30)

4.32%

0.15

0.11

0.19

 < 0.001

30–34

7.85(4.87–10.64)

8.89(5.58–11.90)

13.25%

0.42

0.34

0.49

 < 0.001

35–39

10.81(6.25–15.93)

13.04(7.66–19.12)

20.63%

0.61

0.57

0.65

 < 0.001

40–44

14.30(9.51–18.87)

18.38(12.55–24.07)

28.53%

0.83

0.75

0.91

 < 0.001

45–49

25.32(15.83–37.32)

34.20(21.10–49.94)

35.07%

1.00

0.90

1.10

 < 0.001

ASPR

15–49

524.97(438.48–621.69)

616.50(498.42–762.38)

17.44%

0.50

0.44

0.56

 < 0.001

15–19

1.77(1.05–2.68)

1.91(1.12–2.89)

7.91%

0.23

0.18

0.27

 < 0.001

20–24

4.72(3.39–6.15)

5.07(3.66–6.79)

7.42%

0.22

0.17

0.26

 < 0.001

25–29

15.45(12.00–19.66)

16.63(12.50–21.49)

7.64%

0.23

0.20

0.26

 < 0.001

30–34

47.68(36.98–59.32)

52.32(39.39–67.26)

9.73%

0.29

0.26

0.32

 < 0.001

35–39

80.50(66.59–95.05)

91.43(72.04–113.07)

13.58%

0.39

0.33

0.45

 < 0.001

40–44

122.90(102.08–147.28)

143.77(114.54–180.43)

16.98%

0.49

0.43

0.54

 < 0.001

45–49

251.94(216.37–291.55)

305.37(255.17–370.45)

21.21%

0.60

0.53

0.68

 < 0.001

ASDR

15–49

511.79(433.24–595.00)

261.24(212.03–318.03)

−48.96%

−2.16

−2.42

−1.90

 < 0.001

15–19

9.26(8.37–10.45)

4.40(3.77–5.09)

−52.48%

−2.43

−2.72

−2.15

 < 0.001

20–24

15.04(12.59–17.54)

9.52(7.76–11.60)

−63.30%

−1.49

−1.93

−1.04

 < 0.001

25–29

25.39(21.12–30.57)

13.31(10.66–16.52)

−47.58%

−2.24

−2.80

−1.68

 < 0.001

30–34

59.06(49.74–69.90)

29.64(23.49–37.20)

−49.81%

−2.10

−2.65

−1.54

 < 0.001

35–39

85.51(71.98–99.53)

41.00(33.23–50.48)

−52.05%

−2.36

−2.60

−2.13

 < 0.001

40–44

121.78(102.44–141.23)

60.93(49.76–74.21)

−49.97%

−2.21

−2.56

−1.86

 < 0.001

45–49

195.75(167.00–225.78)

102.44(83.37–122.94)

−47.67%

−2.04

−2.46

−1.61

 < 0.001