Vulnerability to psychosis increases the risk of depression. Results of the RADEP study

References

• Goldberg D. Detection and assessment of emotional disorders in a primary care setting. Int J Ment Health 1979; 8: 30–48
   Web of Science ®Google Scholar
• Katon W. The epidemiology of depression in medical care. Int J Ment Health 1987; 17: 93–111
   Google Scholar
• Salokangas RKR, Poutanen O, Stengård E, Jähi R, Palo-oja T. Prevalence of depression among patients seen in community health centers and community mental health centers. Acta Psychiatr Scand 1996; 93: 427–33
   PubMed Web of Science ®Google Scholar
• Barkow K, Heun R, Ustun TB, Maier W. Identification of items which predict later development of depression in primary health care. Eur Arch Psychiatry Clin Neurosci 2001;251: Suppl 2, II/21–II/26.
   Google Scholar
• Paykel ES, Ramana R, Cooper Z, Hayhurst H, Kerr J, Barocka A. Residual symptoms after remission: An important outcome in depression. Psychol Med 1995; 25: 1171–80
   PubMed Web of Science ®Google Scholar
• Brugha TS, Bebbington PE, MacCarthy B, Sturt E, Wykes T, Potter J. Gender, social support and recovery from depressive disorders: A prospective clinical study. Psychol Med 1990; 20: 147–56
   PubMed Web of Science ®Google Scholar
• Salokangas RKR, Poutanen O. Risk factors for depression in primary care. Findings of the TADEP project. J Aff Dis 1998; 48: 171–80
   PubMed Web of Science ®Google Scholar
• Häfner H, Maurer K. Are there two types of schizophrenia? True onset and sequence of positive and negative syndromes prior to the first admission. Negative versus positive schizophrenia, A Marneros, NC Andreasen, MT Tsuan. Springer, Berlin 1991; 134–59
   Google Scholar
• Svirskis T, Korkeila J, Heinimaa M, Huttunen J, Ilonen T, Ristkari T, et al. Axis-I disorders and vulnerability to psychosis. Schizophr Res 2005; 75: 439–46
   PubMed Web of Science ®Google Scholar
• Rosen JL, Miller TJ, D'Andrea JT, McGlashan TH, Woods SW. Comorbid diagnoses in patients meeting criteria for the schizophrenia prodrome. Schizophr Res 2006; 85: 124–31
   PubMed Web of Science ®Google Scholar
• Salokangas RK, Honkonen T, Stengard E, Koivisto AM. Symptom dimensions and their association with outcome and treatment setting in long-term schizophrenia. Results of the DSP project. Nord J Psychiatry. 2002; 56: 319–27
   PubMed Web of Science ®Google Scholar
• Loza B, Kucharska-Pietura K, Kopacz G, Debowska G. Factor structure of paranoid schizophrenia: A prospective study. Psychopathology 2003; 36: 132–41
   PubMedGoogle Scholar
• Serretti A, Olgiati P. Dimensions of major psychoses: A confirmatory factor analysis of six competing models. Psychiatry Res 2004; 127: 101–9
   PubMedGoogle Scholar
• Hlastala SA, McClellan J. Phenomenology and diagnostic stability of youths with atypical psychotic symptoms. J Child Adolesc Psychopharmacol 2005; 15: 497–509
   PubMed Web of Science ®Google Scholar
• Owens DG, Miller P, Lawrie SM, Johnstone EC. Pathogenesis of schizophrenia: A psychopathological perspective. Br J Psychiatry 2005; 186: 386–93
   PubMed Web of Science ®Google Scholar
• Salokangas RKR, Poutanen O, Stengård E. Screening for depression in primary care. Development and validation of the Depression Scale, a screening instrument for depression. Acta Psychiatr Scand 1995; 92: 10–16
   PubMed Web of Science ®Google Scholar
• Hirschfeld RMA, Williams JBW, Spizer RL, Calabrese JR, Flynn L, Keck PE, Jr, et al. Development and validation of a screening instrument for bipolar spectrum disorder: The Mood Disorder Questionnaire. Am J Psychiatry 2000; 157: 1873–5
   PubMed Web of Science ®Google Scholar
• World Health Organisation. Composite International Diagnostic Interview (CIDI). Version 1.0. Geneva: World Health Organisation; 1990.
   Google Scholar
• Van Os J, Hanssen M, Bijl RV, Vollebergh W. Prevalence of psychotic disorder and community level of psychotic symptoms: An urban–rural comparison. Arch Gen Psychiatry 2001; 58: 663–8
   PubMed Web of Science ®Google Scholar
• Salokangas RKR, Luutonen S, Nieminen M, Karlsson H. Vulnerability to psychosis in patients attending primary care. Results of the RADEP study. Nord J Psychiatry 2005; 59: 239–45
   PubMed Web of Science ®Google Scholar
• Salokangas RKR, Luutonen S, Nieminen M, Karlsson H. Psychotism and its dimensions in primary care. Associations with patient's background and manic and depressive symptoms. Results of the RADEP study. Nor J Psychiatry 2006 (in press).
   PubMedGoogle Scholar
• Smith AL, Weissman MM. Epidemiology. Handbook of affective disorders2nd edition, ES Paykel. Churchill Livingstone, Singapore 1992; 111–129
   Google Scholar
• Salokangas RKR, Vaahtera K, Pakriev S, Sohlman B, Lehtinen V. Gender differences in depressive symptoms. An artefact caused by measurement instruments?. J Aff Dis 2002; 68: 215–20
   PubMed Web of Science ®Google Scholar
• Brown GW, Harris T. Social origins of depression: A study of psychiatric disorder in women. Tavistock Press, London 1978
   Google Scholar
• Von Korff M, Ormel J, Katon W, Lin EH. Disability and depression among high utilizers of health care. Arch Gen Psychiatry 1992; 49: 91–100
   PubMed Web of Science ®Google Scholar
• Van den Brink RH, Ormel J, Tiemens BG, Smit A, Jenner JA, van der Meer K, van Os TW. Predictability of the one-year course of depression and generalised anxiety in primary care. Gen Hosp Psychiatry 2002; 24: 156–63
   PubMedGoogle Scholar
• Verdoux H, van Os J, Maurice-Tison S, Gay B, Salamon R, Bourgeois ML. Increased occurrence of depression in psychosis-prone subjects: A follow-up study in primary care settings. Compr Psychiatry 1999; 40: 462–8
   PubMed Web of Science ®Google Scholar
• Olfson M, Lewis-Fernandez R, Weissman MM, Feder A, Gameroff MJ, Pilowsky D, et al. Psychotic symptoms in an urban general medicine practice. Am J Psychiatry 2002; 159: 1412–19
   PubMed Web of Science ®Google Scholar
• Pedersen J, Aarkrog T. A 20-year study of an adolescent psychiatric clientele, with special reference to the age of onset. Nord J Psychiatry 2001; 55: 5–10
   PubMed Web of Science ®Google Scholar
• Jarbin H, Von Knorring AL. Suicide and suicide attempts in adolescent-onset psychotic disorders. Nord J Psychiatry 2004; 58: 115–23
   PubMed Web of Science ®Google Scholar
• World Health Organisation. The ICD-10. Classification of mental and behavioural disorders. Geneva: World Health Organisation; 1993.
   Google Scholar
• Kendler KS. Schizophrenia: Genetics. Kaplan & Sadock's Comprehensive textbook of psychiatry7th edition, BJ Sadock, VA Sadock. Lippincott Williams &Williams, Philadelphia 2000; 1147–59
   Google Scholar
• Berrettini W. Bipolar disorder and schizophrenia: Not so distant relatives?. World Psychiatry 2003; 2: 68–72
   PubMedGoogle Scholar
• Funke B, Malhotra AK, Finn CT, Plocik AM, Lake SL, Lencz T, et al. COMT genetic variation confers risk for psychotic and affective disorders: A case control study. Behav Brain Funct. 2005; 1: 19
   PubMed Web of Science ®Google Scholar
• Yung AR, Phillips LJ, McGorry PD, McFarlane CA, Francey S, Harrigan S, et al. Prediction of psychosis: A step towards indicated prevention of schizophrenia. Br J Psyschiatry 1998; 172(Suppl 33)14–20
   Google Scholar
• Miller TJ, McGlashan TH, Lifshey Rosen J, Somjee L, Markovich PJ, Stein K, et al. Prospective diagnosis of the initial prodrome for schizophrenia based on the Structured Interview for Prodromal Syndromes: Preliminary evidence of Interrater reliability and predictive validity. Am J Psychiatry 2002; 159: 863–5
   PubMed Web of Science ®Google Scholar