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Table 2 Characteristics of hepatitis B cases and incidence for individuals aged 8–25y from 2005 to 2019 in Guangzhou

From: Effectiveness of catch-up vaccination from 2009 to 2011 on incidence of hepatitis B in Guangzhou, China: a time series analysis

Age group

Cumulative cases (Proportion, %)a

Average incidence (per 100,000 cases)

8y

191 (0.06)

11.76

9y

208 (0.06)

13.16

10y

230 (0.07)

14.20

11y

247 (0.08)

15.45

12y

297 (0.09)

18.32

13y

348 (0.11)

21.53

14y

422 (0.13)

25.93

15y

722 (0.22)

40.48

16y

1,187 (0.37)

54.52

17y

1,961 (0.61)

73.63

18y

3,238 (1.00)

101.03

19y

4,298 (1.33)

105.78

20y

5,240 (1.62)

96.42

21y

6,225 (1.93)

114.32

22y

7,423 (2.30)

148.08

23y

8,133 (2.52)

165.05

24y

8,844 (2.74)

183.84

25y

9,619 (2.98)

207.14

  1. aFigures in round brackets denote the percentage of reported cases within each specified age group, relative to the whole population