HIV among U.S. adults 1997-2018

This statistic illustrates the percentage of adults aged 18 and over who had ever been tested for HIV in the United States from 1997 to 2018. In 2018, 42.7 percent of persons in the U.S. aged 18 and over were tested for the human immunodeficiency virus (HIV).

Percentage of adults aged 18 and over who had ever been tested for HIV in the U.S. from 1997 to 2018

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Release date

May 2019

More information

Region

United States

Survey time period

1997 to 2018

Number of respondents

around 35,000 households

Age group

18 years and older

Method of interview

Face-to-face interview

Supplementary notes

Figures from 1997 to 2005 were taken from the previous year's report and can be found here.

The human immunodeficiency virus (HIV) testing question was moved to the Adult Access to Health Care and Utilization section of the Sample Adult questionnaire in 2011 (dashed line). ††The HIV testing question was moved to the Adult Selected Items section of the Sample Adult questionnaire in 2013 (dotted line). Differences observed in HIV testing estimates from the three periods (2010 and earlier, 2011–2012, and 2013 and later, may be partially or fully attributable to these changes in placement of the HIV testing question in the NHIS questionnaire. NOTES: Data are based on household interviews of a sample of the civilian noninstitutionalized population. Persons who received HIV testing solely as a result of blood donation were considered not to have been tested for HIV. The analyses exclude those with unknown HIV test status.

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