Using HIV Surveillance Data to Monitor Missed Opportunities for Linkage and Engagement in HIV Medical Care

Table 4: Estimated Numbers and Percentages of Persons Not Linked to HIV Medical Care, According to Alternative Definitions of Linkage to Care, Among Those Living with HIV (Not AIDS)^* as of December 31, 2008, by Project Area, Never in Care Project, 2006-2008

Project Area	Population Living with HIV (Not AIDS)	Estimated Number (%) Under Definition 1^†	Estimated Number (%) Under Definition 2^§
Indiana	4,105	738 (18)	1,839 (45)
NewJersey	16,462	2,588 (16)	7,751 (47)
New York City	41,177	4,845 (12)	9,315 (23)
Philadelphia	7,242	1,357 (19)	2,872 (40)
Washington	4,297	300 (7)	792 (18)
Total	73,283	9,828 (13)	22,569 (31)

^* Persons with AIDS, including those identified as HIV infected because of an AIDS diagnosis, were excluded from the denominator because they were presumed to be in care.

^† Under definition 1, persons who had <1 CD4 or VL tests are considered not linked to care.

^§ Under definition 2, persons who had <2 CD4 or VL tests are considered not linked to care.