Numbers and rates* of reported cases of acute hepatitis B and acute hepatitis C among adults aged 18–40 years old, by demographic characteristics — United States, 2022

Numbers and rates* of reported cases of acute hepatitis B and acute hepatitis C among adults aged 18–40 years old, by demographic characteristics — United States, 2022
The number of reported cases and rates of acute hepatitis B and acute hepatitis C among persons aged 18–40 years for 2022.
Characteristics Acute hepatitis B Acute hepatitis C
No. Rate* No. Rate*
Total§ 582 0.6 2,678 2.7
Sex
Male 324 0.6 1,749 3.4
Female 257 0.5 928 1.9
Race/ethnicity
American Indian/Alaska Native, non-Hispanic 2 0.2 46 6.7
Asian/Pacific Islander, non-Hispanic 18 0.2 25 0.3
Black, non-Hispanic 131 0.9 269 1.9
White, non-Hispanic 297 0.5 1,628 3.0
Hispanic 91 0.4 307 1.4
Other 19 n/a 137 n/a
HHS region
Region 1: Boston 28 0.6 190 4.1
Region 2: New York 24 0.3 262 3.0
Region 3: Philadelphia 68 0.7 228 2.4
Region 4: Atlanta 304 1.5 1,070 5.2
Region 5: Chicago 67 0.4 385 2.4
Region 6: Dallas 39 0.3 158 1.1
Region 7: Kansas City 13 0.3 22 0.5
Region 8: Denver 10 0.2 202 4.8
Region 9: San Francisco 16 0.1 86 0.6
Region 10: Seattle 13 0.3 75 1.7

Source: CDC, National Notifiable Diseases Surveillance System.
* Rate per 100,000 population.
† Reported confirmed cases. For case definitions, see Surveillance Case Definitions for Current and Historical Conditions.
§ Numbers reported in each category may not add up to the total number of reported cases in a year due to cases with missing data.
¶ US Department of Health and Human Services regions were categorized according to the grouping of states and US territories assigned under each of the 10 Health and Human Services regional offices. For the purposes of this report, regions with US territories (Region 2 and Region 9) contain data from states only.
n/a: Not applicable. Rate cannot be calculated due to lack of corresponding denominator.

The numbers of reported cases and rates of acute hepatitis B and acute hepatitis C among persons aged 18–40 years for 2022. Persons aged 18–40 years were used as a proxy for persons who inject drugs.