Table 3. Summary of subgroup analysis.

Scenario	Steps of screening	Cost (THB)	QALYs	ICER (THB/QALYs)
A (Base case scenario)	1. MSE 2. Visual Examination by TDN 3. Visual Examination by TDT 4. Visual Examination by oral surgeon	2,616	21.6275	320,618
B (Excluding MSE)	1. Visual Examination by TDN 2. Visual Examination by TDT 3. Visual Examination by oral surgeon	4,498	21.6418	174,621
C (Excluding MSE and visual examination by TDN)	1. Visual Examination by TDT 2. Visual Examination by oral surgeon	5,199	21.6623	100,016
D (Excluding visual examination by TDN)	1. MSE 2. Visual Examination by TDT 3. Visual Examination by oral surgeon	2,938	21.6432	82,292