Table 1.

Differences in demographic data between different recruitment sources

	Recruitment source												Statistics
	(1) Clinical			(2) Internet forums			(3) Insurance			(4) Other			Between groups
Demographic characteristics	n	Mean	SD	n	Mean	SD	n	Mean	SD	n	Mean	SD	df	F	p
Age	105	41.58	11.930	171	41.89	11.239	271	43.32	9.777	466	43.23	11.327	3,1009	1.250	0.290
Marital Status	n	n	%	n	n	%	n	n	%	n	n	%	df	χ2	p
Married and cohabiting	105	36	34.3	171	57	33.3	271	131	48.3	466	201	43.1	15	30.29	0.011
Married and not cohabiting		4	3.8		5	2.9		9	3.3		10	2.1
Committed relation		24	22.9		32	18.7		44	16.2		89	19.1
Single		29	27.6		51	29.8		51	18.8		116	24.9
Divorced		10	9.5		21	12.3		35	12.9		49	10.5
Widowed		2	1.9		5	2.9		1	0.4		1	0.2
Education status	n	n	%	n	n	%	n	n	%	n	n	%	df	χ2	p
Highest secondary	105	52	49.5	171	87	50.9	271	118	43.5	466	263	56.4	18	37.21	0.005
Higher secondary		15	14.3		38	22.2		54	19.9		65	13.9
Middle secondary		27	25.7		35	20.5		84	31.0		97	20.8
Lower secondary		6	5.7		8	4.7		12	4.4		27	5.8
Still in school		1	1.0		0	0		0	0		1	0.2
No degree		1	1.0		0	0		0	0		0	0
Other		3	2.9		3	1.8		3	1.1		13	2.8
Employment status	n	n	%	n	n	%	n	n	%	n	n	%	df	χ2	p
Full-time	105	44	41.9	171	65	38.0	271	136	50.2	466	189	40.6	9	30.24	<0.001
Part time		17	16.2		32	18.7		75	27.7		103	22.1
Other		18	17.1		27	15.8		24	8.9		62	13.3
None		26	24.8		47	27.5		36	13.3		112	24.0