Enhanced Collection of Laboratory Data in HIV Surveillance Among 5 States with Confidential Name-based HIV Infection Reporting, 2005-2006

Table 1B: Stage of HIV Infection Based on CD4 Test^a Performed within 3, 6, and 12 Months Following HIV Diagnosis Among Adults and Adolescents in 5 States Before Enhanced Data Collection (Population A^c), 2004-2005

	≤3 mo		≤6 mo		≤12 mo
	No.	(%)	No.	(%)	No.	(%)
Stage 1	331	7.6	374	8.5	409	9.3
Stage 2	1,027	23.4	1,149	26.2	1,271	29.0
Stage 3 (AIDS)	1,465	33.4	1,531	35.0	1,586	36.2
Stage unknown	1,556	35.5	1,326	30.3	1,113	25.4
Missing CD4 collection date	0	0	0	0	0	0
Total	4,379	100	4,379	100	4,379	100