Table 1.

Baseline characteristics for each group given at the individual and cluster levels.

	Mental Health First Aid group	Control group	P-value
Local Government Area characteristics at baseline
Number	8	8
Population size:			1.0
<5,000	3	3
5,000–9,999	2	1
10,000–19,999	1	2
20,000–29,999	1	0
30,000–39,999	1	2
Number of participants in each area (smallest to largest)	9,17,18,29,30,48,100,165	8,9,12,16,28,50,53,161
Individual participant characteristics at baseline
Number	416	337
Mean age (years)	47.14	47.97	0.42
Number (%) men	79 (19.0)	57 (16.9)	0.40
Number (%) with university degree	85 (20.6)	81 (24.1)	0.36
Number (%) aboriginal	11 (2.6)	10 (3.0)	0.40
Number (%) non-English speaking background	5 (1.2)	7 (2.1)	0.12
Reason for doing course:			0.011
Relating to workplace/voluntary work	180 (43.3)	188 (55.8)
Relating to family/close friends	56 (13.5)	29 (8.6)
Relating to own mental health status	20 (4.8)	10 (3.0)
Duty as a citizen	49 (11.8)	44 (13.1)
Just interested	111 (26.7)	66 (19.6)

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