Table 3.
Trends in crude incidence rates (CIRs) and age-standardized incidence rates (ASIRs) of acute hepatitis B virus (AHBV) infections in China from 1990 to 2019 based on joinpoint regression models
| CIR | ASIR | |||
|---|---|---|---|---|
| Gender | Duration | APC (95% CI), % | Duration | APC (95% CI), % |
| Male | 1990–2001 | −0.49* (−0.55, −0.43) | 1990–2001 | −0.58* (−0.68, −0.49) |
| 2001–2004 | −2.74* (−3.59, −1.88) | 2001–2004 | −3.53* (−4.87, −2.17) | |
| 2004–2011 | −1.83* (−1.98, −1.69) | 2004–2011 | −2.44* (−2.67, −2.21) | |
| 2011–2019 | −2.96* (−3.05, −2.86) | 2011–2019 | −3.45* (−3.60, −3.30) | |
| Female | 1990–1997 | −0.14* (−0.25, −0.04) | 1990–1997 | −0.28* (−0.45, −0.11) |
| 1997–2001 | −1.00* (−1.39, −0.62) | 1997–2001 | −1.04* (−1.67, −0.41) | |
| 2001–2004 | −2.92* (−3.67, −2.16) | 2001–2004 | −3.94* (−5.16, −2.72) | |
| 2004–2011 | −1.99* (−2.12, −1.86) | 2004–2011 | −2.66* (−2.87, −2.45) | |
| 2011–2019 | −3.91* (−3.99, −3.83) | 2011–2019 | −4.38* (−4.52, −4.25) | |
| Both | 1990–1998 | −0.34* (−0.42, −0.26) | 1990–2001 | −0.57* (−0.66, −0.49) |
| 1998–2001 | −0.92* (−1.65, −0.19) | 2001–2004 | −3.87* (−5.04, −2.68) | |
| 2001–2004 | −2.73* (−3.45, −2.01) | 2004–2011 | −2.53* (−2.73, −2.33) | |
| 2004–2011 | −1.91* (−2.03, −1.79) | 2011–2019 | −3.81* (−3.94, −3.68) | |
| 2011–2019 | −3.32* (−3.39, −3.24) | NA | NA | |
Note: CIRs stand for crude incidence rates of AHBV infections; ASIRs stand for age-standardized incidence rates; and APC stands for annual per cent change. NA stands for not applicable.
*
Indicates that APC is significantly different from zero at a significance level of 0.05.