Apeldoorn, SY, Sterk, B, van den Heuvel, ER, Schoevers, RA, Islam, MA, Genetic, R, Outcome of Psychosis I, Bruggeman, R, Cahn, W, deHaan, L, Kahn, RS, Meijer, CJ, Myin-Germeys, I, van Os, J and Wiersma, D (2014) Factors contributing to the duration of untreated psychosis. Schizophrenia Research 158, 76–81.
Bay, N, Bjornestad, J, Johannessen, JO, Larsen, TK and Joa, I (2016) Obstacles to care in first-episode psychosis patients with a long duration of untreated psychosis. Early Intervention in Psychiatry 10, 71–76.
Birnbaum, ML, Wan, CR, Broussard, B and Compton, MT (2017) Associations between duration of untreated psychosis and domains of positive and negative symptoms. Early Intervention in Psychiatry 11, 375–382.
Boonstra, N, Klaassen, R, Sytema, S, Marshall, M, De Haan, L, Wunderink, L and Wiersma, D (2012) Duration of untreated psychosis and negative symptoms--a systematic review and meta-analysis of individual patient data. Schizophrenia Research 142, 12–19.
Carpenter, WT and Schiffman, J (2015) Diagnostic concepts in the context of clinical high risk/attenuated psychosis syndrome. Schizophrenia Bulletin 41, 1001–1002.
Carrion, RE, Demmin, D, Auther, AM, McLaughlin, D, Olsen, R, Lencz, T, Correll, CU and Cornblatt, BA (2016) Duration of attenuated positive and negative symptoms in individuals at clinical high risk: associations with risk of conversion to psychosis and functional outcome. Journal of Psychiatric Research 81, 95–101.
Chang, WC, Tang, JY, Hui, CL, Chiu, CP, Lam, MM, Wong, GH, Chung, DW, Law, CW, Tso, S, Chan, KP, Hung, SF and Chen, EY (2011) Gender differences in patients presenting with first-episode psychosis in HongKong: a three-year follow up study. The Australian and New Zealand Journal of Psychiatry 45, 199–205.
Chon, MW, Lee, TY, Kim, SN, Huh, MJ, Park, HY, Lee, CR, Shin, NY and Kwon, JS (2015) Factors contributing to the duration of untreated prodromal positive symptoms in individuals at ultra-high risk for psychosis. Schizophrenia Research 162, 64–66.
Compton, MT, Bakeman, R, Alolayan, Y, Balducci, PM, Bernardini, F, Broussard, B, Crisafio, A, Cristofaro, S, Amar, P, Johnson, S and Wan, CR (2015) Personality domains, duration of untreated psychosis, functioning, and symptom severity in first-episode psychosis. Schizophrenia Research 168, 113–119.
Compton, MT, Gordon, TL, Goulding, SM, Esterberg, ML, Carter, T, Leiner, AS, Weiss, PS, Druss, BG, Walker, EF and Kaslow, NJ (2011) Patient-level predictors and clinical correlates of duration of untreated psychosis among hospitalized first-episode patients. The Journal of Clinical Psychiatry 72, 225–232.
Cotton, SM, Wright, A, Harris, MG, Jorm, AF and McGorry, PD (2006) Influence of gender on mental health literacy in young Australians. The Australian and New Zealand Journal of Psychiatry 40, 790–796.
Crumlish, N, Whitty, P, Clarke, M, Browne, S, Kamali, M, Gervin, M, McTigue, O, Kinsella, A, Waddington, JL, Larkin, C and O'Callaghan, E (2009) Beyond the critical period: longitudinal study of 8-year outcome in first-episode non-affective psychosis. The British Journal of Psychiatry 194, 18–24.
Drake, RJ, Haley, CJ, Akhtar, S and Lewis, SW (2000) Causes and consequences of duration of untreated psychosis in schizophrenia. The British Journal of Psychiatry 177, 511–515.
Fridgen, GJ, Aston, J, Gschwandtner, U, Pflueger, M, Zimmermann, R, Studerus, E, Stieglitz, RD and Riecher-Rossler, A (2013) Help-seeking and pathways to care in the early stages of psychosis. Social Psychiatry and Psychiatric Epidemiology 48, 1033–1043.
Fusar-Poli, P, Meneghelli, A, Valmaggia, L, Allen, P, Galvan, F, McGuire, P and Cocchi, A (2009) Duration of untreated prodromal symptoms and 12-month functional outcome of individuals at risk of psychosis. The British Journal of Psychiatry 194, 181–182.
Fusar-Poli, P, Nelson, B, Valmaggia, L, Yung, AR and McGuire, PK (2014) Comorbid depressive and anxiety disorders in 509 individuals with an at-risk mental state: impact on psychopathology and transition to psychosis. Schizophrenia Bulletin 40, 120–131.
Fusar-Poli, P, Tantardini, M, De Simone, S, Ramella-Cravaro, V, Oliver, D, Kingdon, J, Kotlicka-Antczak, M, Valmaggia, L, Lee, J, Millan, MJ, Galderisi, S, Balottin, U, Ricca, V and McGuire, P (2017) Deconstructing vulnerability for psychosis: meta-analysis of environmental risk factors for psychosis in subjects at ultra high-risk. European Psychiatry 40, 65–75.
Hartmann, JA, Yuen, HP, McGorry, PD, Yung, AR, Lin, A, Wood, SJ, Lavoie, S and Nelson, B (2016) Declining transition rates to psychotic disorder in ‘ultra-high risk’ clients: investigation of a dilution effect. Schizophrenia Research 170, 130–136.
Kake, TR, Garrett, N and Te Aonui, M (2016) Cognitive neuropsychological functioning in New Zealand Maori diagnosed with schizophrenia. The Australian and New Zealand Journal of Psychiatry 50, 566–576.
Kane, JM, Robinson, DG, Schooler, NR, Mueser, KT, Penn, DL, Rosenheck, RA, Addington, J, Brunette, MF, Correll, CU, Estroff, SE, Marcy, P, Robinson, J, Meyer-Kalos, PS, Gottlieb, JD, Glynn, SM, Lynde, DW, Pipes, R, Kurian, BT, Miller, AL, Azrin, ST, Goldstein, AB, Severe, JB, Lin, H, Sint, KJ, John, M and Heinssen, RK (2016) Comprehensive versus usual community care for first-episode psychosis: 2-year outcomes from the NIMH RAISE early treatment program. The American Journal of Psychiatry 173, 362–372.
Loewy, RL, Bearden, CE, Johnson, JK, Raine, A and Cannon, TD (2005) The prodromal questionnaire (PQ): preliminary validation of a self-report screening measure for prodromal and psychotic syndromes. Schizophrenia Research 79, 117–125.
Lunsford-Avery, J. R., Goncalves, B. D., Brietzke, E., Bressan, R. A., Gadelha, A., Auerbach, R. P., Mittal, V. A. (2017) Adolescents at clinical-high risk for psychosis: circadian rhythm disturbances predict worsened prognosis at 1-year follow-up. Schizophrenia Research (in press).
Marshall, M, Lewis, S, Lockwood, A, Drake, R, Jones, P and Croudace, T (2005) Association between duration of untreated psychosis and outcome in cohorts of first-episode patients: a systematic review. Archives of General Psychiatry 62, 975–983.
McGlashan, T, Walsh, B, Woods, S (2010) The Psychosis-Risk Syndrome: Handbook for Diagnosis and Follow-Up. New York: Oxford University Press.
Miller, TJ, McGlashan, TH, Rosen, JL, Cadenhead, K, Cannon, T, Ventura, J, McFarlane, W, Perkins, DO, Pearlson, GD and Woods, SW (2003) Prodromal assessment with the structured interview for prodromal syndromes and the scale of prodromal symptoms: predictive validity, interrater reliability, and training to reliability. Schizophrenia Bulletin 29, 703–715.
Miller, TJ, McGlashan, TH, Rosen, JL, Somjee, L, Markovich, PJ, Stein, K and Woods, SW (2002) Prospective diagnosis of the initial prodrome for schizophrenia based on the structured interview for prodromal syndromes: preliminary evidence of interrater reliability and predictive validity. The American Journal of Psychiatry 159, 863–865.
Mittal, VA, Dean, DJ, Bernard, JA, Orr, JM, Pelletier-Baldelli, A, Carol, EE, Gupta, T, Turner, J, Leopold, DR, Robustelli, BL and Millman, ZB (2014) Neurological soft signs predict abnormal cerebellar-thalamic tract development and negative symptoms in adolescents at high risk for psychosis: a longitudinal perspective. Schizophrenia Bulletin 40, 1204–1215.
Murru, A and Carpiniello, B (2016) Duration of untreated illness as a key to early intervention in schizophrenia: a review. Neuroscience Letters (in press).
Norman, RM, Lewis, SW and Marshall, M (2005) Duration of untreated psychosis and its relationship to clinical outcome. The British Journal of Psychiatry. Supplement 48, s19–s23.
Penttila, M, Jaaskelainen, E, Hirvonen, N, Isohanni, M and Miettunen, J (2014) Duration of untreated psychosis as predictor of long-term outcome in schizophrenia: systematic review and meta-analysis. The British Journal of Psychiatry 205, 88–94.
Perkins, DO, Gu, H, Boteva, K and Lieberman, JA (2005) Relationship between duration of untreated psychosis and outcome in first-episode schizophrenia: a critical review and meta-analysis. The American Journal of Psychiatry 162, 1785–1804.
Qin, H, Zhang, J, Wang, Z, Min, H, Yan, C, Chen, F, Fu, W and Zhang, M (2014) Duration of untreated psychosis and clinical outcomes of first-episode schizophrenia: a 4-year follow-up study. Shanghai Archives Psychiatry 26, 42–48.
Stafford, MR, Jackson, H, Mayo-Wilson, E, Morrison, AP and Kendall, T (2013) Early interventions to prevent psychosis: systematic review and meta-analysis. British Medical Journal 346, f185.
Sterk, B, Slief, EM, Blankers, M, Linszen, DH and de Haan, L (2010) Duration of untreated psychosis and ethnicity. Schizophrenia Research 124, 238–239.
Valmaggia, LR, Byrne, M, Day, F, Broome, MR, Johns, L, Howes, O, Power, P, Badger, S, Fusar-Poli, P and McGuire, PK (2015) Duration of untreated psychosis and need for admission in patients who engage with mental health services in the prodromal phase. The British Journal of Psychiatry 207, 130–134.
Wang, J, Jiang, K, Zhang, T, Li, H, Woodberry, K and Seidman, L (2013) How should we intervene in psychosis risk syndromes? Shanghai Archives Psychiatry 25, 6–9.
Xu, L, Zhang, T, Zheng, L, Li, H, Tang, Y, Luo, X, Sheng, J and Wang, J (2016) Psychometric properties of prodromal questionnaire-brief version among Chinese help-seeking individuals. PLoS ONE 11, e0148935.
Yung, AR, Yuen, HP, Berger, G, Francey, S, Hung, TC, Nelson, B, Phillips, L and McGorry, P (2007) Declining transition rate in ultra high risk (prodromal) services: dilution or reduction of risk? Schizophrenia Bulletin 33, 673–681.
Zhang, T, Li, H, Woodberry, KA, Seidman, LJ, Zheng, L, Li, H, Zhao, S, Tang, Y, Guo, Q, Lu, X, Zhuo, K, Qian, Z, Chow, A, Li, C, Jiang, K, Xiao, Z and Wang, J (2014) Prodromal psychosis detection in a counseling center population in China: an epidemiological and clinical study. Schizophrenia Research 152, 391–399.
Zhang, TH, Li, HJ, Woodberry, KA, Xu, LH, Tang, YY, Guo, Q, Cui, HR, Liu, XH, Chow, A, Li, CB, Jiang, KD, Xiao, ZP, Seidman, LJ and Wang, JJ (2017) Two-year follow-up of a Chinese sample at clinical high risk for psychosis: timeline of symptoms, help-seeking and conversion. Epidemiology and Psychiatric Sciences 26, 287–298.
Zheng, L, Wang, J, Zhang, T, Li, H, Li, C and Jiang, K (2012) The Chinese version of the SIPS/SOPS: a pilot study of reliability and validity. Chinese Mental Health Journal 26, 571–576.