The cost per life-year gained for those screened (with 1% HIV prevalence) was $47,200 (range $59,700-$37,800, with prevalence rates 0.5-4%) with a cost per QALY of $92,400 (range $117,300-$73,800). The corresponding costs per life-year saved for both those screened and their sexual partners were $36,600 (range $70,700-$44,200). The cost of the screening programme per QALY to persons and their partners was $55,500 ($70,700 - $44,200)