Table 1. Epidemiological Characteristics... | American Society of Hematology

Table 1.

Epidemiological Characteristics of the 21 LTNPs

LTNP Group Patient^*	Age in 1995	Risk Factor of HIV Infection	Clinical Primary HIV Infection	Last Negative HIV Assay	First Positive HIV Assay	Seroconversion on HIV-1 Western Blot	Known Period of Exposure to HIV Infection	No. of Years Infected
	(yr)/Sex		(date)	(date)	(1985)
1	42/M	Homosexual	—	—	July	—	—	≥10
2	43/M	Homosexual	May 1984	—	October	—	April 1984 only	11
3	29/M	IVDU	—	—	December	—	>October 1984	≥10
4	49/M	Homosexual	—	—	November	—	—	≥10
5	33/M	Homosexual	—	—	December	—	>July 1985	10
6	38/F	IVDU	—	—	October	—	July-Nov 1983 only	12
7	39/M	IVDU	—	—	September	—	>January 1985	10
8	34/F	Heterosexual	August 1985	—	October	—	June 1985 only	10
9	35/F	IVDU	—	—	May	May 1985	—	10
10	29/F	Heterosexual	August 1985	August 1985	September	—	—	10
11	29/M	Homosexual	—	—	December	—	—	≥10
12	31/F	Heterosexual	January 1985	—	November	—	June-Dec 1984 only	11
13	45/M	Homosexual	—	June 1985	October	October 1985	—	10
14	40/M	Homosexual	August 1985	—	October	—	—	10
15	37/M	Heterosexual	—	—	November	—	1983-1984 only	11-12
16	45/M	Homosexual	—	—	December	—	1982 only	13
17	40/M	Homosexual	May 1985	—	October	—	—	10
18	47/M	Homosexual	—	—	August	—	1983 only	12
19	50/M	Heterosexual	—	—	November	—	July-Aug 1984	11
20	34/M	Homosexual	—	—	December	—	—	≥10
21	35/M	Homosexual	—	—	October	—	—	≥10

LTNP Group Patient^*	Age in 1995	Risk Factor of HIV Infection	Clinical Primary HIV Infection	Last Negative HIV Assay	First Positive HIV Assay	Seroconversion on HIV-1 Western Blot	Known Period of Exposure to HIV Infection	No. of Years Infected
	(yr)/Sex		(date)	(date)	(1985)
1	42/M	Homosexual	—	—	July	—	—	≥10
2	43/M	Homosexual	May 1984	—	October	—	April 1984 only	11
3	29/M	IVDU	—	—	December	—	>October 1984	≥10
4	49/M	Homosexual	—	—	November	—	—	≥10
5	33/M	Homosexual	—	—	December	—	>July 1985	10
6	38/F	IVDU	—	—	October	—	July-Nov 1983 only	12
7	39/M	IVDU	—	—	September	—	>January 1985	10
8	34/F	Heterosexual	August 1985	—	October	—	June 1985 only	10
9	35/F	IVDU	—	—	May	May 1985	—	10
10	29/F	Heterosexual	August 1985	August 1985	September	—	—	10
11	29/M	Homosexual	—	—	December	—	—	≥10
12	31/F	Heterosexual	January 1985	—	November	—	June-Dec 1984 only	11
13	45/M	Homosexual	—	June 1985	October	October 1985	—	10
14	40/M	Homosexual	August 1985	—	October	—	—	10
15	37/M	Heterosexual	—	—	November	—	1983-1984 only	11-12
16	45/M	Homosexual	—	—	December	—	1982 only	13
17	40/M	Homosexual	May 1985	—	October	—	—	10
18	47/M	Homosexual	—	—	August	—	1983 only	12
19	50/M	Heterosexual	—	—	November	—	July-Aug 1984	11
20	34/M	Homosexual	—	—	December	—	—	≥10
21	35/M	Homosexual	—	—	October	—	—	≥10

Abbreviation: IVDU, intravenous drug addict.

Patient nos. 1 through 12 comprise LTNP I group; patient nos. 13 through 21 comprise LTNP II group.