{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,9]],"date-time":"2026-05-09T16:55:39Z","timestamp":1778345739190,"version":"3.51.4"},"reference-count":23,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2007,6,1]],"date-time":"2007-06-01T00:00:00Z","timestamp":1180656000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Aust N Z J Psychiatry"],"published-print":{"date-parts":[[2007,6]]},"abstract":"<jats:p>Objective: To evaluate the diagnostic stability of psychotic disorders over a 2 year period in patients presenting with first-episode psychosis.<\/jats:p>\n                  <jats:p>Methods: One hundred and fifty-four patients were recruited from an early psychosis intervention programme (EPIP). They were diagnosed by the attending psychiatrist using the Structured Clinical Interview for DSM-IV Axis I at first contact (baseline) and after 24 months. The diagnoses were classified into the following categories: schizophrenia spectrum disorders (schizophrenia, schizophreniform disorder and schizoaffective disorder), affective psychosis (bipolar and major depressive disorders with psychotic symptoms), and other non-affective psychosis (delusional disorder, psychosis not otherwise specified and brief psychotic disorder). Two measueres of stability, the prospective and the retrospective consistency were determined for each diagnosis.<\/jats:p>\n                  <jats:p>Results: The diagnoses with the best prospective consistency were schizophrenia (87.0%) and affective psychosis (54.5%). The shift into schizophrenia spectrum disorder was the most frequent diagnostic change. Duration of untreated psychosis was found to be the only significant predictor of shift.<\/jats:p>\n                  <jats:p>Conclusion: It is difficult to make a definitive diagnosis at first contact. The clinical need to review the diagnosis throughout the period of follow up is emphasized.<\/jats:p>","DOI":"10.1080\/00048670701332276","type":"journal-article","created":{"date-parts":[[2007,5,23]],"date-time":"2007-05-23T21:26:50Z","timestamp":1179955610000},"page":"495-500","source":"Crossref","is-referenced-by-count":29,"title":["Diagnostic Stability 2 Years After Treatment Initiation in the Early Psychosis Intervention Programme in Singapore"],"prefix":"10.1177","volume":"41","author":[{"given":"Mythily","family":"Subramaniam","sequence":"first","affiliation":[{"name":"Institute of Mental Health, 10 Buangkok View, Singapore, 539747"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elaine","family":"Pek","sequence":"additional","affiliation":[{"name":"Institute of Mental Health, 10 Buangkok View, Singapore, 539747"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Swapna","family":"Verma","sequence":"additional","affiliation":[{"name":"Institute of Mental Health, 10 Buangkok View, Singapore, 539747"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yiong","family":"Huak Chan","sequence":"additional","affiliation":[{"name":"Yong Loo Lin School of Medicine, Dean Office MD 11 CRC, 02-02, 10 Medical Drive, Singapore, 117597"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Siow","family":"Ann Chong","sequence":"additional","affiliation":[{"name":"Institute of Mental Health, 10 Buangkok View, Singapore, 539747"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2007,6,1]]},"reference":[{"key":"bibr1-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1176\/ajp.151.8.1200"},{"key":"bibr2-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1176\/ajp.126.7.983"},{"key":"bibr3-00048670701332276","volume-title":"Diagnostic and statistical manual of mental disorders, third edition","author":"American Psychiatric Association","year":"1980"},{"key":"bibr4-00048670701332276","volume-title":"ICD-10 classification of mental and behavioral disorders: clinical descriptions and diagnostic guidelines","author":"World Health Organization","year":"1992"},{"key":"bibr5-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1001\/archpsyc.57.6.593"},{"key":"bibr6-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1080\/00048679409080784"},{"key":"bibr7-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1097\/00005053-199504000-00004"},{"key":"bibr8-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1176\/ajp.149.11.1580"},{"key":"bibr9-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.170.4.321"},{"key":"bibr10-00048670701332276","doi-asserted-by":"publisher","DOI":"10.4088\/JCP.v66n1006"},{"key":"bibr11-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0447.2002.01080.x"},{"key":"bibr12-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1080\/j.1440-1665.2005.02199.x"},{"key":"bibr13-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1097\/00005053-199908000-00002"},{"key":"bibr14-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1016\/S0193-953X(05)70240-9"},{"key":"bibr15-00048670701332276","doi-asserted-by":"crossref","first-page":"630","DOI":"10.47102\/annals-acadmedsg.V33N5p630","volume":"33","author":"Chong SA","year":"2004","journal-title":"Ann Acad Med Singapore"},{"key":"bibr16-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1093\/schbul\/13.2.261"},{"key":"bibr17-00048670701332276","volume-title":"The Global Assessment of Functioning Scale (GAF) in diagnostic and statistical manual of mental disorder-IV","author":"Frances A","year":"1994"},{"key":"bibr18-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1176\/appi.ps.56.9.1084"},{"key":"bibr19-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1007\/s00127-002-0553-8"},{"key":"bibr20-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1001\/archpsyc.1982.04290080001001"},{"key":"bibr21-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1007\/s11920-003-0043-z"},{"key":"bibr22-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1080\/j.1440-1614.2005.01516.x"},{"key":"bibr23-00048670701332276","doi-asserted-by":"publisher","DOI":"10.1016\/S0924-9338(01)00542-9"}],"container-title":["Australian &amp; 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