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Table
Indicator name:
Hepatitis – Total number of chronic hepatitis (HBV and HCV) in all ages
Short name:
People living with chronic HBV
People living with chronic HCV
Data type:
Count
Indicator Id:
3524
Topic:
Hepatitis, burden of disease
Rationale:
This indicator reflects epidemic and service needs, since it serves as numerator or denominator for several other indicators along the result chain and cascade (coverage and impact indicators).
Definition:
• Estimated number of people in the total population (all ages) who are HBsAg positive
• Estimated number of people in the total population (all ages) who are alive and currently viremic i.e anti-HCV(+) or HCV RNA positive-
• Adjusted number of people in the total population (all ages) ever infected- anti-HCV(+) or HCV RNA positive any year prior to or in the given year including those cured
Disaggregation:
By country and WHO region
Method of measurement
Estimated number of persons infected with chronic HBV and HCV is extrapolate from recent biomarker surveys.. Estimates may be modelled from older biomarker surveys and/or contemporaneous surveys in various populations of interest. Every two years countries report to WHO using a web-abased data collection system

For chronic HCV, the adjusted number of people living with chronic HCV includes those with resolved infection (cured or naturally cleared).
M&E Framework:
Context and needs
Method of estimation:
Where routine surveillance data is absent, WHO works with countries to develop estimates of people living with HBV. Modelling using the PRoGReSs (for HBV) and Markov (disease progression) model for HCV are preferred source.
Method of estimation of global and regional aggregates:
Regional estimates are the sum of the country data in each WHO region.
Preferred data sources:
National population-based surveys in high-burden epidemics, otherwise modelled estimates
Unit of Measure:
Cases
Expected frequency of data dissemination:
Every two years
Expected frequency of data collection:
Annual
Contact person email:
fainid@who.int
Name:
Diana Faini
IMRID:
3524
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