Figure.

Conversion of tooth-level primary molar sealant cost-effectiveness model to child-level model primary molar sealant cost-effectiveness model. *The high intrachild correlation model was built from tooth-level observations sorted by ascending costs of the “never sealed” (NS) arm. The low intrachild correlation model was built by random sorting of tooth-level observations. Non-overlapping sequential groups of 8 molars corresponded to a total of 1,250 children in both the high and low intrachild correlation models.