OBJECTIVE: Although there is substantial comorbidity between psychotic disorder and obsessive-compulsive disorder (OCD), little is known about how these clinical phenotypes, and their subclinical extended phenotypes, covary and impact on each other over time. This study examined cross-sectional and longitudinal associations between both (extended) phenotypes in the general population. METHOD: Data were obtained from the three waves of the NEMESIS-study. A representative population sample of 7076 participants were assessed using the composite international diagnostic interview (CIDI) at baseline (T(0)), 1 year later at T(1) and again 2 years later at T(2). RESULTS: At T(0), a lifetime diagnosis of psychotic disorder was present in 1.5% of the entire sample, in 11.5% of the people with any OC symptom and in 23.0% of individuals diagnosed with OCD. OC symptoms at T(0) predicted incident psychotic symptoms at T(2). Similarly, T(0) psychotic symptoms predicted T(2) OC symptoms. The likelihood of persistence of psychotic symptoms or transition to psychotic disorder was higher if early psychosis was accompanied by co-occurring OC symptoms, but not the other way around. CONCLUSION: OCD and the psychosis phenotype cluster together and predict each other at (sub)clinical level. The co-occurrence of subclinical OC and psychosis may facilitate the formation of a more 'toxic' form of persistent psychosis.
OBJECTIVE: Although there is substantial comorbidity between psychotic disorder and obsessive-compulsive disorder (OCD), little is known about how these clinical phenotypes, and their subclinical extended phenotypes, covary and impact on each other over time. This study examined cross-sectional and longitudinal associations between both (extended) phenotypes in the general population. METHOD: Data were obtained from the three waves of the NEMESIS-study. A representative population sample of 7076 participants were assessed using the composite international diagnostic interview (CIDI) at baseline (T(0)), 1 year later at T(1) and again 2 years later at T(2). RESULTS: At T(0), a lifetime diagnosis of psychotic disorder was present in 1.5% of the entire sample, in 11.5% of the people with any OC symptom and in 23.0% of individuals diagnosed with OCD. OC symptoms at T(0) predicted incident psychotic symptoms at T(2). Similarly, T(0) psychotic symptoms predicted T(2) OC symptoms. The likelihood of persistence of psychotic symptoms or transition to psychotic disorder was higher if early psychosis was accompanied by co-occurring OC symptoms, but not the other way around. CONCLUSION:OCD and the psychosis phenotype cluster together and predict each other at (sub)clinical level. The co-occurrence of subclinical OC and psychosis may facilitate the formation of a more 'toxic' form of persistent psychosis.
Authors: Stian Solem; Kristen Hagen; Christoffer Wenaas; Åshild T Håland; Gunvor Launes; Patrick A Vogel; Bjarne Hansen; Joseph A Himle Journal: BMC Psychiatry Date: 2015-05-28 Impact factor: 3.630
Authors: Marije Swets; Frank Van Dael; Sabine Roza; Robert Schoevers; Inez Myin-Germeys; Lieuwe de Haan Journal: PLoS One Date: 2015-06-10 Impact factor: 3.240
Authors: Hui Lin Ong; Adela-Maria Isvoranu; Frederike Schirmbeck; Philip McGuire; Lucia Valmaggia; Matthew J Kempton; Mark van der Gaag; Anita Riecher-Rössler; Rodrigo A Bressan; Neus Barrantes-Vidal; Barnaby Nelson; G Paul Amminger; Patrick McGorry; Christos Pantelis; Marie-Odile Krebs; Merete Nordentoft; Birte Glenthøj; Stephan Ruhrmann; Gabriele Sachs; Bart P F Rutten; Jim van Os; Lieuwe de Haan; Denny Borsboom Journal: Schizophr Bull Date: 2021-07-08 Impact factor: 9.306