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ObjectiveTo analyze the trend of hepatitis B incidence among residents of Xizang Autonomous Region from 2018 to 2022, to provide a reference for the development of hepatitis B prevention and control strategies. MethodsData on reported hepatitis B incidence among residents of Xizang Autonomous Region from 2018 to 2022 were collected from the Hepatitis B Surveillance System of the China Information System for Disease Control and Prevention, and the trend of hepatitis B incidence in the population during this period was analyzed. ResultsThe reported annual incidence rate (1/100 000) of hepatitis B among residents of Xizang Autonomous Region was 80.14, 111.07, 121.69, 129.10, and 100.20 in 2018, 2019, 2020, 2021, and 2022, respectively, with an overall increasing trend (χ2trend = 48.225, Ptrend < 0.001), and the rate increased for both male (72.84 to 86.38) and female (87.60 to 103.43) residents (both Ptrend < 0.001) and for residents aged 40 – 49 years (80.88 to 117.74), 50 – 59 years (83.40 to 116.74), and ≥ 60 years (81.30 to 188.44) (all Ptrend < 0.001) over the period; but the rate decreased for residents aged 0 – 9 years (30.72 to 13.92) and 30 – 39 years (105.60 to 104.54) (both Ptrend < 0.05). The reported annual incidence rate (1/100 000) of hepatitis B increased during the period for residents of all prefecture-level administrative divisions of Xizang Autonomous Region, including Lhasa (145.37 to 150.36), Shigatse (8.90 to12.59), Changdu (87.18 to 143.64), Naqu (47.29 to 93.41), and Ali (155.03 to 348.36) (all Ptrend < 0.05), except for residents in Linzhi, whose rate decreased from 181.65 to 118.53 (χ2trend = 9.890, Ptrend = 0.002). Both the reported incidence rates (1/100 000) of chronic hepatitis B and unclassified hepatitis B among residents of Xizang Autonomous Region showed an increasing trend over the 5-year period, from 58.26 and 13.49 to 65.32 and 21.55 (both Ptrend < 0.001). ConclusionThe overall reported incidence rate of hepatitis B, including chronic and unclassified hepatitis B, among residents of Xizang Autonomous Region showed an upward trend from 2018 to 2022 and the residents aged 40 years and above are the key population for hepatitis B prevention and control in this region. |
