Table 2.

Longitudinal Risks of Receiving a Later Diagnosis of Schizophrenia, Bipolar Disorder, and Schizoaffective Disorder After Receiving an Initial Diagnosis of OCD Compared With Individuals Without OCD During the Follow-up Period (ICD-10 Cases Only)

Later Diagnosis	Initial Diagnosis		RRs (95% CIs)
	OCD (N = 18907)a	No OCD (N = 189070)
	n (%)	n (%)
Schizophrenia	114 (0.60)	425 (0.22)	2.7 (2.2–3.3)
Bipolar disorder	787 (4.16)	718 (0.38)	11.6 (10.5–12.9)
Schizoaffective disorder	106 (0.56)	218 (0.12)	4.9 (3.9–6.2)

Note: Abbreviations are explained in the first footnote to table 1.

^aOCD patients with prior diagnoses of schizophrenia, bipolar disorder, or schizoaffective disorder are excluded from the analyses.