Table 3.

Internalizing and externalizing problems in cases and controls according to the Youth Self-Report/YSR

Internalizing and externalizing problems	Cases*		Controls**
	N = 26		N = 26
	N	(%)	N	(%)	p***
(1) Internalizing only	4	(15.4)	12	(46.2)	0.003
(2) Externalizing only	1	(3.8)	3	(11.5)
(3) Both	9	(34.6)	0	(0.0)
(4) None	12	(46.2)	11	(42.3)
(1) vs. (4)					0.090
(2) vs. (4)					0.315
(3) vs. (4)					0.010

*Cases = Students identified by teachers as possibly having mental health problems (included in hypothetical referral lists before training).

**Controls = Students not included in teachers’ hypothetical referral lists, matched by age, gender and grade.

***Chi-square test.