About the National Data
Baseline: 32.4 percent of persons with chronic hepatitis B were aware they have chronic hepatitis B in 2013-16
Target: 90.0 percent
Maintain consistency with national programs, regulations, policies, or laws
Beginning in 2013 and continuing through 2016, all NHANES participants aged 6 years and older (or their parents or caregivers) were asked at the home interview survey, before the NHANES blood test for hepatitis B, if they had ever been told that they had hepatitis B. Following the home interview, blood was drawn during the examination component of the survey and subsequently tested for anti-HBc and HBsAg at the CDC's Division of Viral Hepatitis laboratory. Due to small sample sizes and instability of estimates for hepatitis B, multiple NHANES samples must be aggregated. Aggregate estimates for 2013-2016 are weighted using the NHANES survey weights. Rolling estimates will be used (e.g., second data point will be for 2015-2018 NHANES surveys) for future data points. The estimates are considered representative of the US civilian non-institutional household population. NHANES estimates have been critiqued for use in estimating prevalence of viral hepatitis in the United States because the sampling frame omits by design, or may under-represent, certain populations expected to have higher prevalence of hepatitis C, such as persons living in correctional facilities or experiencing homelessness (Holmberg 2013, Edlin 2015). Similar concerns may be a consideration for NHANES estimates of hepatitis B. However, beginning in 2011, NHANES began oversampling the Asian population in the United States, a population in which prevalence of hepatitis B may be higher for persons who migrated to the United States as adults or whose parents did, from countries with higher prevalence of hepatitis B (Roberts 2015).
In 2021, to align with the Viral Hepatitis National Strategic Plan (VH-NSP), the target-setting method was changed from "minimal statistical significance" to "maintain consistency with national programs, regulations, policies or laws." The target was revised from 56.0 percent to 90.0 percent.