Qiang Xia1, Armando Teixeira-Pinto, Lisa A Forgione, Ellen W Wiewel, Sarah L Braunstein, Lucia V Torian. 1. *HIV Epidemiology and Field Services Program, The New York City Department of Health and Mental Hygiene, Bureau of HIV Prevention and Control, New York City, NY; and †Screening and Test Evaluation Program (STEP), School of Public Health, The University of Sydney, Sydney, NSW, Australia.
Abstract
OBJECTIVE: To estimate HIV incidence in the United States using a newly developed method. METHODS: The analysis period (2002-2011) was broken down into 3-year periods with overlaps, and HIV incidence was estimated based on the relationship between number of new diagnoses and HIV incidence in each of these 3-year periods, by assuming that all HIV infections would eventually be diagnosed and within each 3-year period HIV incidence and case finding were stable. RESULTS: The estimated HIV incidence in the United States decreased from 52,721 (range: 47,449-57,993) in 2003 to 39,651 (range: 35,686-43,617) in 2010, among males from 38,164 (range: 35,051-42,840) to 33,035 (range: 29,088-35,553), and among females from 13,557 (range: 12,133-14,830) to 6616 (range: 5825 to 7120). CONCLUSIONS: Using a simple and novel method based on the number of new HIV diagnoses, we were able to estimate HIV incidence and report a declining trend in HIV incidence in the United States since 2003.
OBJECTIVE: To estimate HIV incidence in the United States using a newly developed method. METHODS: The analysis period (2002-2011) was broken down into 3-year periods with overlaps, and HIV incidence was estimated based on the relationship between number of new diagnoses and HIV incidence in each of these 3-year periods, by assuming that all HIV infections would eventually be diagnosed and within each 3-year period HIV incidence and case finding were stable. RESULTS: The estimated HIV incidence in the United States decreased from 52,721 (range: 47,449-57,993) in 2003 to 39,651 (range: 35,686-43,617) in 2010, among males from 38,164 (range: 35,051-42,840) to 33,035 (range: 29,088-35,553), and among females from 13,557 (range: 12,133-14,830) to 6616 (range: 5825 to 7120). CONCLUSIONS: Using a simple and novel method based on the number of new HIV diagnoses, we were able to estimate HIV incidence and report a declining trend in HIV incidence in the United States since 2003.