Brief report: Time from infection with the human immunodeficiency virus to diagnosis, United States.

HIV testing efforts increased in recent years to reduce the percentage of persons with HIV unaware of their infection and to detect HIV early. An analysis of CD4 data from national HIV surveillance indicates that diagnosis delays decreased during 2003-2011; on average, persons diagnosed in 2011 had been infected 5.6 years before their diagnosis compared with 7.0 years among those diagnosed in 2003. Diagnosis delays were longer among females, blacks, Hispanics/Latinos, and older persons, but shorter among men who have sex with men, compared with their counterparts. Continued efforts to implement routine testing can help reduce diagnosis delays.