Table 3. Cost and cost-effectiveness of the intervention strategies.

Programme model	Reference	Early-Late	Early-Early
Cost of HIV Diagnosis & pre-ART death	$23,754	$454,010	$458,433
Cost of ART including hospitalization	$4,009,804	$4,800,673	$6,314,682
Total Cost (All children)	$4,033,558	$5,254,683	$6,773,115
Total LY (HIV+child)	3,086	3,323	4,134
Incremental cost-effectiveness ratio per LY over Reference	–	$5,149	$2,615
Incremental cost-effectiveness ratio per LY over Early-Late	–	–	$1,873

Note: Model assumes 6,000 children born to HIV infected mothers with a risk of HIV transmission of 3.9% and provision of lifelong ART among HIV infected children diagnosed and initiated on therapy. All costs converted to USD using purchasing power parity (17.5 baht per international US dollar).