Table 2.

Changes in dichotomous outcome measures.

Outcome	Mental Health First Aid group	Control group	OR (95% CI) P-value
Mental health problems in self
Pre-test	154 (37%)	118 (35%)
Follow-up	172 (41%)	118 (35%)
Change (95% CI)	4% (2 to 6)	0% (-3 to 3)	0.548 (0.304, 0.986), P = 0.045
Mental health problems in family
Pre-test	233 (56%)	183 (54%)
Follow-up	277 (67%)	205 (61%)
Change (95% CI)	11% (4 to 17)	7% (2 to 11)	0.575 (0.318, 1.037), P = 0.066
Correct diagnosis of vignette
Pre-test	282 (68%)	249 (74%)
Follow-up	337 (81%)	255 (76%)
Change (95% CI)	13% (8 to 19)	2% (0 to 4)	0.311 (0.250, 0.387), P < 0.001
Help offered to person with mental health problem
Pre-test	305 (73%)	256 (76%)
Follow-up	340 (82%)	270 (80%)
Change (95% CI)	8% (4 to 13)	4% (-2 to 10)	0.602 (0.380, 0.953), P = 0.031
Professional help advised to person with mental health problem
Pre-test	81 (19%)	71 (21%)
Follow-up	104 (25%)	73 (22%)
Change (95% CI)	6% (3 to 8)	1% (-4 to 5)	0.734 (0.452, 1.191), P = 0.21

Note: P-values and confidence intervals are adjusted for clustering by Local Government Area