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Basic StatisticsAugust 3, 2008 Unless otherwise noted, the following data are from the CDC HIV/AIDS Surveillance Report: Cases of HIV Infection and AIDS in the United States and Dependent Areas, 2006.
Definitions
For more definitions and details about how HIV and AIDS data are tabulated, read the "Technical Notes" from the HIV/AIDS Surveillance Report: Cases of HIV Infection and AIDS in the United States and Dependent Areas, 2006. HIV Prevalence EstimatePrevalence is the number of people living with HIV/AIDS in a given year. At the end of 2003, an estimated 1,039,000 to 1,185,000 persons in the United States were living with HIV/AIDS, with 24%-27% undiagnosed and unaware of their HIV infection.1 For more information see "HIV/AIDS in the United States." 1Glynn M, Rhodes P. Estimated HIV prevalence in the United States at the end of 2003. National HIV Prevention Conference; June 2005; Atlanta. Abstract 595. HIV Incidence EstimateIncidence is the number of new HIV infections that occur during a given year. In 2008, CDC estimated that approximately 56,300 people were newly infected with HIV in 2006 (the most recent year that data are available). Over half (53%) of these new infections occurred in gay and bisexual men. African American men and women were also strongly affected and were estimated to have an incidence rate than was 7 times greater than the incidence rate among whites. Visit the HIV incidence page for more details. AIDS CasesIn 2006, the estimated number of cases of AIDS in the United States and dependent areas was 37,852. Of these, 36,828 were in the 50 states and the District of Columbia and 833 were in the dependent areas. In the 50 states and the District of Columbia, adult and adolescent AIDS cases totaled 36,790 with 26,989 cases in males and 9,801 cases in females, and 38 cases estimated in children under age 13 years. The cumulative estimated number of cases of AIDS through 2006 in the United States and dependent areas was 1,014,797. Of these, 982,498 were in the 50 states and the District of Columbia and 31,217 were in the dependent areas. In the 50 states and the District of Columbia, adult and adolescent AIDS cases totaled 973,352 with 783,786 cases in males and 189,566 cases in females, and 9,144 cases estimated in children under age 13 years. These numbers do not represent reported case counts. Rather, these numbers are point estimates, which result from adjustments of reported case counts. The reported case counts have been adjusted for reporting delays and for redistribution of cases in persons initially reported without an identified risk factor, but not for incomplete reporting. Totals include persons of unknown race or multiple races, persons of unknown sex, and persons of unknown state of residence. Because totals were calculated independently of the values for the subpopulations, subpopulation values may not equal the totals. AIDS Cases by AgeOf the estimated number of AIDS cases in the 50 states and the District of Columbia, persons' ages at time of diagnosis were distributed as follows.
AIDS Cases by Race/EthnicityCDC tracks HIV/AIDS information on five racial and ethnic groups: white, not Hispanic; black, not Hispanic; Hispanic; Asian/Pacific Islander; and American Indian/Alaska Native. Estimated numbers of AIDS cases in the 50 states and the District of Columbia, by race or ethnicity:
For more details on HIV/AIDS and race/ethnicity, see CDC's Populations/Surveillance fact sheets. AIDS Cases by Transmission CategorySix common transmission categories are male-to-male sexual contact, injection drug use, male-to-male sexual contact and injection drug use, high-risk heterosexual (male-female) contact, mother-to-child (perinatal) transmission, and other (includes blood transfusions and unknown cause). Following is the distribution of the estimated number of cases of AIDS among adults and adolescents by transmission category in the 50 states and the District of Columbia. A breakdown by sex is provided where appropriate.
The distribution of the estimated number of cases of AIDS, among children* in the 50 states and the District of Columbia, by transmission categories was:
AIDS Cases by Top 10 States/Dependent AreasThe 10 states or dependent areas reporting the highest number of AIDS cases were:
Persons Living With AIDSIn 2006, the estimated number of persons living with AIDS in the United States and dependent areas was 448,871. In the 50 states and the District of Columbia, this included 432,915 adults and adolescents, and 3,775 children under age 13 years. These numbers do not represent reported case counts. Rather, these numbers are point estimates, which result from adjustments of reported case counts. The reported case counts have been adjusted for reporting delays and for redistribution of cases in persons initially reported without an identified risk factor, but not for incomplete reporting. Totals include persons of unknown race or multiple races, persons of unknown sex, and persons of unknown state of residence. Because totals were calculated independently of the values for the subpopulations, subpopulation values may not equal the totals. Deaths of Persons With AIDSIn 2006, the estimated number of deaths of persons with AIDS in the United States and dependent areas was 14,627. In the 50 states and the District of Columbia, this included 13,968 adults and adolescents, and 48 children under age 13 years. The cumulative estimated number of deaths of persons with AIDS in the United States and dependent areas, through 2006, was 565,927. In the 50 states and the District of Columbia, this included 540,436 adults and adolescents, and 5,369 children under age 13 years. Totals include persons of unknown race or multiple races, persons of unknown sex, and persons of unknown state of residence. Because totals were calculated independently of the values for the subpopulations, subpopulation values may not equal the totals. HIV/AIDS CasesIn 2006, the estimated number of cases of HIV/AIDS diagnosed in the 33 states and 5 dependent areas with confidential name-based HIV infection reporting was 36,817. Of these, 35,314 were in the 33 states and 1,503 were in the 5 dependent areas. In the 33 states, adult and adolescent HIV/AIDS cases totaled 35,180 with 25,928 cases in males and 9,252 cases in females, and 135 cases estimated in children under age 13 years. These numbers do not represent reported case counts. Rather, these numbers are point estimates, which result from adjustments of reported case counts. The reported case counts have been adjusted for reporting delays and for redistribution of cases in persons initially reported without an identified risk factor, but not for incomplete reporting. HIV/AIDS Cases by AgeOf the estimated number of HIV/AIDS cases diagnosed in the 33 states with confidential name-based HIV infection reporting, persons' ages at time of diagnosis were distributed as follows.
These numbers do not represent reported case counts. Rather, these numbers are point estimates, which result from adjustments of reported case counts. The reported case counts have been adjusted for reporting delays and for redistribution of cases in persons initially reported without an identified risk factor, but not for incomplete reporting. HIV/AIDS Cases by Race/EthnicityCDC tracks HIV/AIDS information on five racial and ethnic groups: white, not Hispanic; black, not Hispanic; Hispanic; Asian/Pacific Islander; and American Indian/Alaska Native. Estimated numbers of HIV/AIDS diagnosedin the 33 states with confidential name-based HIV infection reporting, by race or ethnicity:
For more details on HIV/AIDS and race/ethnicity, see CDC's Populations/Surveillance fact sheets. HIV/AIDS Cases by Transmission CategorySix common transmission categories are male-to-male sexual contact, injection drug use, male-to-male sexual contact and injection drug use, high-risk heterosexual (male-female) contact, mother-to-child (perinatal) transmission, and other (includes blood transfusions and unknown cause). Following is the distribution of the estimated number of cases of HIV/AIDS diagnosed among adults and adolescents in the 33 states with confidential name-based HIV infection reporting, by transmission category. A breakdown by sex is provided where appropriate.
The distribution of the estimated number of cases of HIV/AIDS diagnosed among children* in the 33 states with confidential name-based HIV infection reporting, by transmission categories, follows.
In 2006, the estimated number of persons living with HIV/AIDS in the 33 states and dependent areas with confidential name-based HIV/AIDS infection reporting was 509,681. In the 33 states only, this included 485,020 adults and adolescents, and 6,703 children under age 13 years. These numbers do not represent reported case counts. Rather, these numbers are point estimates, which result from adjustments of reported case counts. The reported case counts have been adjusted for reporting delays and for redistribution of cases in persons initially reported without an identified risk factor, but not for incomplete reporting. Totals include persons of unknown race or multiple races, persons of unknown sex, and persons of unknown state of residence. Because totals were calculated independently of the values for the subpopulations, subpopulation values may not equal the totals. State-by-State HIV/AIDS Data
International StatisticsFor the most up-to-date information on international HIV and AIDS statistics, visit the Joint United Nations Programme on HIV/AIDS. For current statistics on the number of reported AIDS cases in North, Central, and South America, please contact the Pan American Health Organization (PAHO) which is the regional office for the Americas of the World Health Organization at 525 23rd Street, N.W., Washington, D.C. 20037, telephone: 202-861-4346. Other international Web sites available are the World Health Organization (WHO) and the United States Agency for International Development (USAID).  This article was provided by U.S. Centers for Disease Control and Prevention. Visit the CDC's website to find out more about their activities, publications and services.
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