@article{oai:nagasaki-u.repo.nii.ac.jp:00015238,
 author = {Ichinose, Hitoshi and Nakane, Yoshibumi and Nakane, Hideyuki and Kinoshita, Hirohisa and Ohta, Yasuyuki and Honda, Sumihisa and Ozawa, Hiroki},
 issue = {3},
 journal = {Acta medica Nagasakiensia},
 month = {Mar},
 note = {Objective: Numerous studies have shown a relationship between the duration of untreated psychosis (DUP) in schizophrenia and short-termoutcome. However, few studies have investigated the relationships between DUP and the medium-term and long-term outcomes. Furthermore,we are unaware of any reports regarding the relationship between DUP and the ultralong-term outcome. This study aimed to investigate therelationship between DUP and ultralong-term outcome at 28 years in patients with schizophrenia.Method: Patients with schizophrenia completed an interview survey 28 years after their initial psychiatric examination during the period 1979-1980. It was possible to conduct the survey using suitable assessment scales in 31 patients in whom DUP was confirmed. These patients weredivided into a short DUP group and a long DUP group on the basis of the median DUP, and the outcomes of these two groups were compared.Results: Longer DUP correlated significantly with poorer symptomatic outcome; degree of social adjustment; and, global functioning. Multiplelinear regression analysis found no changes in these results even after controlling for various factors, including gender, age at onset, mode ofonset, diagnostic subtype, and premorbid adjustment.Conclusion: DUP adversely affected ultralong-term outcome of schizophrenia after 28 years. This finding supports the need to establish asystem to enable early detection and appropriate intervention for patients with schizophrenia to reduce the risk of a deleterious outcome aftermore than 25 years., Acta medica Nagasakiensia, 54(3), pp.59-66 ; 2010},
 pages = {59--66},
 title = {Nagasaki Schizophrenia Study: Relationship Between Ultralong-term Outcome (after 28 years) and Duration of Untreated Psychosis},
 volume = {54},
 year = {2010}
}