Table II. Classification into two groups of the subjects according to the therapy.

	Group 1	Group 2
Period	1989-1996	1997-2002
Cases	250	220
Male	70%	75%
Female	30%	25%
Age (years)	26-64	29-68
Therapy	Mono-therapy (AZT or DDI)	HAART
		52 on 2 NtrIs
		168 2 NRTIs +
		1 IP/NNRTI
CD4+ lymphocytes *	12-350	150-750

Abbreviations: see text.

^*CD4+ lymphocytes (at time of ENT manifestations)