biostudies-literatureLoglio AGilead Sciencese70336https://www.ebi.ac.uk/biostudies/studies/S-EPMC12410042biostudies-literatureUnknown45(10)<h4>Background and aims</h4>Hepatitis B (HBV) and Hepatitis Delta virus (HDV) infection have undergone significant changes in Italy over the past few decades, but reliable and updated prevalence of chronic hepatitis B (CHB) and Delta (CHD) data are lacking. The aim of the study was to describe the epidemiology of CHB and CHD in Italy in 2024, based on real-world data.<h4>Methods</h4>The number of patients with a healthcare expenditure exemption for CHB (016.070.32) and CHD (016.070.33) was obtained from 21 Regional Health Authorities. To understand how many CHB or CHD patients did not have these specific exemptions, a survey was conducted in 30 Gastroenterology, Hepatology and Infectious Diseases Units across the country.<h4>Results</h4>Health Authorities data reported 67 514 and 5216 subjLiver international : official journal of the International Association for the Study of the LiverDiagnosed Patients With Chronic Hepatitis B and Delta Virus in Italy in 2024: An Estimation From a National Real-World Database.PMC12410042Community Grant 2022Global Community Grant ALL4LIVER 2023Russo FPIppolito AMDe Nicola STerreni NSvegliati-Baroni GSimone LSchiada LCoppola CCiancio AAghemo APellicelli AGardini IToniutto PLampertico PPinchera BPonziani FRCiaccio ALoglio ACamma CClaar ECaraceni PBartoli MGiannini EGGentile ISarmati LChessa LFederico AConforti MMorisco FSacerdoti DD'Offizi GFagiuoli SDegasperi ED'Anto MRomagnoli DNardone GSilvia FColecchia AInvernizzi PGiaccherini CRosato VMessina VCabibbo GNiro GAColombatto PRocco AIeluzzi DMuratori PVigano MBrunetto MRfalseDiagnosed Patients With Chronic Hepatitis B and Delta Virus in Italy in 2024: An Estimation From a National Real-World Database.<h4>Background and aims</h4>Hepatitis B (HBV) and Hepatitis Delta virus (HDV) infection have undergone significant changes in Italy over the past few decades, but reliable and updated prevalence of chronic hepatitis B (CHB) and Delta (CHD) data are lacking. The aim of the study was to describe the epidemiology of CHB and CHD in Italy in 2024, based on real-world data.<h4>Methods</h4>The number of patients with a healthcare expenditure exemption for CHB (016.070.32) and CHD (016.070.33) was obtained from 21 Regional Health Authorities. To understand how many CHB or CHD patients did not have these specific exemptions, a survey was conducted in 30 Gastroenterology, Hepatology and Infectious Diseases Units across the country.<h4>Results</h4>Health Authorities data reported 67 514 and 5216 subj2025-01-01T00:00:00Z2025 Oct2026-05-29T19:52:41.782Z2026-04-08T05:54:54.36ZS-EPMC124100424090561310.1111/liv.70336