Table 3.

Difference-in-Differences (DID) Estimating the Effect of the Intervention on the Mean Score of Mental Health Literacy

Category		DID Estimate	p-value	95% Confidence Interval DID Estimate
Sex	Altogether	0.348	<0.001	0.154–0.542
	Boys	0.308	<0.05	0.042–0.574
	Girls	0.398	<0.01	0.120–0.677
Age group	15–17 years	0.295	<0.05	0.020–0.570
	18–19 years	0.392	<0.001	0.117–0.667
School grade level	9–10	0.371	<0.01	0.096–0.646
	11–12	0.324	<0.05	0.050–0.597

Note: DID estimate is an estimate of mean of mental health literacy score change after controlling for (observable) confounders.

Abbreviations: DID, difference-in- difference.