Table 1.

Background characteristics of the intervention group (n = 47) and the control group (n = 62)

Characteristic		Intervention group (online network ArboAntwoord)		Control group (common information sources)
		n	%	n	%
Gender
	Female	28	60	33	53
	Male	19	40	29	47
Age group (years)
	15–24	0	0	0	0
	25–34	17	36	14	23
	35–44	12	25	22	35
	45–54	13	28	20	32
	≥55	5	11	6	10
Educational level
	Low	11	23	13	21
	Intermediate	17	36	21	34
	High	19	40	28	45
Role
	Worker	32	68	42	68
	Employer/manager	8	17	13	21
	OSHa (semi)professional	7	15	7	11
Company size
	Small	19	40	27	44
	Medium	16	34	18	29
	Large	12	26	17	27
Company sector
	Agriculture and fishery	2	4	3	5
	Industry	13	28	12	19
	Construction industry	4	10	6	10
	Trade	8	17	11	17
	Transport and communication	1	2	3	5
	Financial services	1	2	1	2
	Business services	8	17	7	11
	Public policy or civil service	3	6	3	5
	Education	1	2	3	5
	Health care	3	6	7	11
	Culture and other services	3	6	6	10
Self-rated Internet and computer experience
	Relatively inexperienced	8	17	16		26
	Relatively experienced	39	83	46		74

^a Occupational safety and health.