APC > 0 indicates an increasing trend in HBV incidence in the current period, while APC < 0 indicates a decreasing trend.
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Trends and age-period-cohort effect on incidence of hepatitis B from 2008 to 2022 in Guangzhou, China.
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The sentences
The incidence of chronic and acute HB showed a decreasing trend in Guangzhou over the past 15 years, with an average annual percent change of − 4.31% and − 16.87%, respectively.