HIV incidence among teens and adults by transmission U.S. 1981-2019| ��ƽ��

HIV incidence among persons aged 13 years and over in the United States in 1981, 1984-1985, and 2019, by transmission

Characteristic	Male-to-male sexual contact	Injection drug use	Male-to-male sexual contact and injection drug use	Heterosexual contact
1982	12,500	4,400	2,400	400
1984-1985	75,800	32,000	11,400	8,000
2019	23,100	2,500	1,400	7,800

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Release date

June 2021

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Region

United States

Survey time period

1981 to 2019

Age group

13 years and older

Supplementary notes

"HIV incidence estimates for 1981–2006 were derived from the extended BCA applied to HIV surveillance data reported to CDC through June 2007. HIV incidence in 2007 was estimated using the SEA applied to HIV surveillance data reported to CDC through June 2011. HIV incidence estimates during 2008–2019 were derived from the CD4 model applied to HIV surveillance data reported to CDC through December 2020. Abbreviations: BCA = back-calculation approach; CD4 = CD4+ T-lymphocyte model; SEA = stratified extrapolation approach."

Citation formats

From 1982 to 2019, the estimated number of new HIV cases per year (incidence) has increased for HIV cases transmitted through male-to-male sexual contact and through heterosexual contact. In comparison, HIV cases transmitted through injection drug use has decreased. This statistic illustrates the estimated HIV incidence among persons aged 13 years and over in the United States in 1981, 1984-1985, and 2019, by transmission.