Register-based study of the incidence, comorbidities and demographics of obsessive-compulsive disorder in specialist healthcare

Table 2 Demographic factors and risk of OCD

						Unadjusted			Adjusted^a
		Cases (n)	%	Controls (n)	%	OR	95% CI	P value	OR	95% CI	P value
Maternal socioeconomic status	Blue collar (ref)	363	16.4	1639	18.6	Ref
	Upper white collar	389	17.5	1296	14.7	1.36	1.15–1.59	<0.001	1.26	1.07–1.49	0.007
	Lower white collar	1018	45.9	3963	45.1	1.16	1.01–1.32	0.03	1.14	1.00–1.31	0.06
	Others	336	15.2	1444	16.4	1.05	0.89–1.24	0.54	1.04	0.88–1.24	0.62
	Missing	112	5.1	452	5.1	1.12	0.88–1.42	0.36	1.07	0.83–1.38	0.63
Residential area	Rural (ref)	378	17.0	1926	21.9	Ref
	Urban	1483	66.9	5314	60.4	1.42	1.26–1.61	<0.001	1.29	1.13–1.47	<0.001
	Semi-urban	340	15.3	1513	17.2	1.14	0.97–1.34	0.12	1.10	0.93–1.30	0.27
	Missing	17	0.8	41	0.5	2.08	1.17–3.70	0.01	1.95	1.04–3.64	0.04
Region of birth	Northern Finland (ref)	222	10.0	1184	13.5	Ref
	Southern Finland	1119	50.5	3560	40.5	1.68	1.43–1.96	<0.001	1.49	1.27–1.76	<0.001
	Western Finland	624	28.1	3097	35.2	1.08	0.91–1.27	0.39	1.04	0.88–1.24	0.63
	Eastern Finland	253	11.4	953	10.8	1.42	1.16–1.73	<0.001	1.36	1.11–1.67	0.003

ISSN: 1471-244X