Development and Validation of an Oral Health Literacy Measurement for Primary School Children in Thailand

Table 1

Correlations of the P-TOFHLiD with variables for different validity assessments.

Variables	Newly developed tool P-TOFHLiD		Reference tool ThREALD-30
	R	-Value	r	-Value
Concurrent validity
Age	0.023	0.805	−0.082	0.377
Grade point average	0.478	<0.001	0.339	<0.001
Daily stipend	−0.090	0.335	−0.061	0.515
Convergent validity
ThREALD-30	0.422	<0.001	—	—
Predictive validity
DMFT (overall)	0.009	0.921	−0.010	0.916
Number of decay	−0.067	0.286	−0.073	0.434
Number of missing	−0.100	0.047	0.040	0.665
Number of filled	0.184	0.342	0.127	0.173

Significant value: -value < 0.05, -value < 0.001.