Table 2.

Estimated mean changes from baseline to 2-year follow-up.

	Baseline to 2-year follow-up
	MHFA eLearning vs PFA				Blended MHFA vs PFA				MHFA blended vs eLearning
	Mean diff	95% CI	d	95% CI	Mean diff	95% CI	d	95% CI	Mean diff	95% CI	d	95% CI
MHFA knowledge	8.19c	3.65 to 12.72	0.50	0.18 to 0.81	14.86c	10.36 to 19.36	0.98	0.64 to 1.31	6.67b	2.18 to 11.17	0.47	0.16 to 0.78
Quality of MHFA towards a work colleague	0.40	−0.40 to 1.25	−0.14	−0.90 to 0.62	−0.15	−0.95 to 0.66	−0.37	−1.07 to 0.34	−0.55	−1.31 to 0.22	−0.20	−0.86 to 0.46
Quality of MHFA towards another person	−0.07	−0.72 to 0.58	0.23	−0.28 to 0.74	1.19c	0.57 to 1.81	1.25	0.73 to 1.77	1.27c	0.64 to 1.90	1.01	0.48 to 1.53
Social distance - depression	0.02	−0.12 to 0.15	−0.06	−0.37 to 0.25	0.01	−0.12 to 0.15	−0.03	−0.34 to 0.27	0.00	−0.14 to 0.13	0.03	−0.28 to 0.33
Social distance - PTSD	−0.08	−0.22 to 0.06	−0.29	−0.61 to 0.02	−0.04	−0.18 to 0.10	−0.10	−0.41 to 0.21	0.04	−0.09 to 0.18	0.18	−0.13 to 0.49
Confidence - depression	0.28a	0.02 to 0.53	0.27	−0.04 to 0.58	0.21	−0.05 to 0.46	0.30	−0.01 to 0.62	−0.07	−0.32 to 0.18	0.00	−0.31 to 0.31
Confidence - PTSD	0.22	−0.06 to 0.49	0.29	−0.02 to 0.61	0.27	−0.01 to 0.54	0.36	0.05 to 0.67	0.05	−0.22 to 0.32	0.04	−0.27 to 0.35
MHFA intentions - depression	−0.05	−0.66 to 0.55	−0.01	−0.32 to 0.30	0.43	−0.17 to 1.04	0.28	−0.03 to 0.59	0.49	−0.11 to 1.09	0.25	−0.05 to 0.56
MHFA intentions - PTSD	0.45	−0.06 to 0.96	0.27	−0.04 to 0.58	0.91c	0.40 to 1.43	0.61	0.29 to 0.93	0.47	−0.04 to 0.98	0.28	−0.03 to 0.59
Prof help beliefs - depression	0.16	−0.45 to 0.77	0.17	−0.14 to 0.49	0.58	−0.02 to 1.19	0.37	0.05 to 0. 68	0.43	−0.18 to 1.03	0.21	−0.10 to 0.52
Prof help beliefs - PTSD	0.31	−0.27 to 0.89	0.33	0.02 to 0.65	0.78b	0.21 to 1.35	0.50	0.19 to 0.82	0.47	−0.10 to 1.04	0.19	−0.12 to 0. 50
Stigma - Dangerous/unpredictable - Depression	0.08	−0.06 to 0.22	0.17	−0.14 to 0.48	0.06	−0.08 to 0.20	0.14	−0.17 to 0.45	−0.02	−0.16 to 0.12	−0.04	−0.34 to 0.27
Stigma - Dangerous/unpredictable - PTSD	0.14	−0.01 to 0.28	0.35	0.03 to 0. 67	0.13	−0.02 to 0.27	0.28	−0.04 to 0. 59	−0.01	−0.15 to 0.13	−0.08	−0.39 to 0.23

PTSD: post-traumatic stress disorder; MHFA: Mental Health First Aid, PFA: Provide First Aid.

^ap < .05.

^bp < .01.

^cp < .001.