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Skip search results from other journals and go to results- 861 Journal of Medical Internet Research
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Epidemic Trends and Spatial Distribution Characteristics of Hepatitis B in China: Surveillance Study
Temporal trends of hepatitis B incidence rate in China from 2004 to 2020: (A) temporal trends in the incidence rate of hepatitis B in China, (B) temporal trends in the incidence rate of hepatitis B across 7 regions in China, and (C) temporal trends in the incidence rate of hepatitis B across 31 regions in China. APC: annual percentage change.
JMIR Public Health Surveill 2025;11:e70888
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The discriminative ability was assessed using the Harrell C-statistic (C-index) and the time-dependent receiver operating characteristic (ROC) curve. The agreement between observed and predicted event rates was evaluated using calibration plots in deciles of predicted risk. Calibration was considered optimal when the calibration curve was close to the diagonal line, reflected by an observed-to-expected ratio near 1 [14], and the Hosmer-Lemeshow test showed a P value greater than .05.
J Med Internet Res 2025;27:e67253
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