Table 3

Prevented fraction (PF) of HIV after the introduction of the different intervention strategies in the low prevalence scenario (Cotonou) in 1985, 1993, and 2005

	Start of intervention; PF (time interval (years)) (%)
	1985: PF(1) PF(10) Risk groups*			1993: PF(1) PF(10) Risk groups*			2005: PF(1) PF(10) Risk groups*
Interventions	Low	High	Overall	Low	High	Overall	Low	High	Overall
*Low, low risk groups; high, CSW and frequent clients of CSW.
CSW, commercial sex worker; Gc, gonorrhoea.
B: SIDA1/2
Female	22	47	34	15	45	21	6	41	10
	85	88	85	42	68	42	27	68	30
Male	15	46	43	8	40	33	2	36	20
	83	88	87	36	58	47	18	61	38
C1: Extra 20% condom use between CSW and clients
Female	21	45	33	14	44	20	6	40	9
	84	86	83	40	65	39	25	66	28
Male	14	44	41	7	38	32	2	34	19
	81	86	85	33	55	45	17	59	37
E: Gc eradication
Female	51	78	65	40	75	47	17	59	22
	96	96	96	62	84	63	31	68	34
Male	43	77	74	29	71	63	9	55	33
	94	98	97	56	78	68	22	62	41
S2: Screening CSW every month + clients every 2 months
Female	32	57	45	24	55	30	11	46	14
	95	95	95	58	82	58	29	67	32
Male	25	55	52	15	48	42	5	39	23
	93	97	96	52	74	64	21	60	40
C2: Extra 50% condom use between CSW and clients
Female	41	80	60	29	79	41	12	73	19
	97	99	97	67	93	70	36	87	41
Male	29	79	74	16	74	63	5	66	37
	95	99	98	58	89	78	24	81	52
C4: C1+ extra 30% condom use between clients and low risk females
Female	43	45	44	37	44	37	24	40	25
	89	87	86	56	66	53	39	67	41
Male	21	44	42	13	39	34	5	37	22
	85	87	86	46	57	50	25	61	42
CS: C1+ screening of CSW every 2 months
Female	29	59	44	20	57	28	9	52	13
	94	97	97	58	84	59	31	75	35
Male	22	57	54	12	51	43	4	45	25
	92	97	96	50	77	65	21	68	44