The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
First-episode Schizophrenia: I. Early Course Parameters
Abstract
Concepts and definitions pertaining to the early course of schizophrenia are reviewed, along with recent illustrative studies of first-episode schizophrenia. Early course parameters of a Norwegian first-episode sample are presented. This sample (n = 43) demonstrated strong gender differences, with male patients having significantly higher frequency of single marital status, lower educational status, schizophrenia, early age at onset, and lower Global Assessment of Functioning scores the last year before hospitalization. The duration of untreated psychosis (DUP) was long (mean = 114 weeks), as in other studies. Longer DUP was associated with poorer work, social, and global functioning in the year before admission, with more insidious onset of psychosis, and with more negative symptoms at first clinical presentation. Longer DUP was not associated with the age at onset of psychosis. These findings were mostly gender independent. The data help to frame questions about why patients can be psychotic for so long before getting help. Finally, suggestions are offered for the definition and measurement of early course parameters for schizophrenia.
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Cites
Diagnostic and Statistical Manual of Mental Disorders
Williams, J. B. W., & First, M. (2013) · Encyclopedia of Social Work · doi:10.1093/acrefore/9780199975839.013.104 · Cited by 109,519
The Positive and Negative Syndrome Scale (PANSS) for schizophrenia.
Kay, S. R., Fiszbein, A., & Opler, L. A. (1987) · Schizophrenia Bulletin · doi:10.1093/schbul/13.2.261 · Cited by 21,378
- STATISTICAL PACKAGE FOR SOCIAL SCIENCES
(2014) · Statistical Methods in Psychiatry Research and SPSS · doi:10.1201/b17560-26 · Cited by 12,056
The Brief Psychiatric Rating Scale.
Overall, J. E., & Gorham, D. R. (1962) · Psychological Reports · doi:10.2466/pr0.1962.10.3.799 · Cited by 11,090
DSM-IV: Diagnostic and Statistical Manual of Mental Disorders
Bell, C. C. (1994) · JAMA: The Journal of the American Medical Association · doi:10.1001/jama.1994.03520100096046 · Cited by 2,610
Measurement of Premorbid Adjustment in Chronic Schizophrenia
Cannon-Spoor, H. E., Potkin, S. G., & Wyatt, R. J. (1982) · Schizophrenia Bulletin · doi:10.1093/schbul/8.3.470 · Cited by 1,201
Duration of psychosis and outcome in first-episode schizophrenia
(1992) · American Journal of Psychiatry · doi:10.1176/ajp.149.9.1183 · Cited by 880
Neuroleptics and the Natural Course of Schizophrenia
Wyatt, R. J. (1991) · Schizophrenia Bulletin · doi:10.1093/schbul/17.2.325 · Cited by 787
Monitoring and Care of Young People at Incipient Risk of Psychosis
Yung, A. R., McGorry, P. D., McFarlane, C. A., Jackson, H. J., Patton, G. C., & Rakkar, A. (1996) · Schizophrenia Bulletin · doi:10.1093/schbul/22.2.283 · Cited by 772
The Influence of Age and Sex on the Onset and Early Course of Schizophrenia
Häfner, H., Maurer, K., Löffler, W., & Riecher-Rössler, A. (1993) · British Journal of Psychiatry · doi:10.1192/bjp.162.1.80 · Cited by 644
Cited by
The Psychosis High-Risk State: A Comprehensive State-of-the-Art Review
Fusar-Poli, P., Borgwardt, S., Bechdolf, A., Addington, J., Riecher-Rössler, A., Schultze-Lutter, F., Keshavan, M., Wood, S., Ruhrmann, S., Seidman, L. J., et al. (2013) · JAMA Psychiatry · doi:10.1001/jamapsychiatry.2013.269 · Cited by 1,483
Self-citationGender differences in schizophrenia and first-episode psychosis: a comprehensive literature review
Ochoa, S., Usall, J., Cobo, J., Labad, X., & Kulkarni, J. (2012) · Schizophrenia Research and Treatment · doi:10.1155/2012/916198 · Cited by 735
Santesteban-Echarri, O., Paino, M., Rice, S., González-Blanch, C., McGorry, P., Gleeson, J., & Alvarez-Jimenez, M. (2017) · Clinical Psychology Review · doi:10.1016/j.cpr.2017.09.007 · Cited by 268
Whom to ask for help in case of a mental disorder? Preferences of the lay public
Angermeyer, M. C., Matschinger, H., & Riedel-Heller, S. G. (1999) · Social Psychiatry and Psychiatric Epidemiology · doi:10.1007/s001270050134 · Cited by 222
Addington, J., Saeedi, H., & Addington, D. (2006) · British Journal of Psychiatry · doi:10.1192/bjp.bp.105.021022 · Cited by 168
Metadata
- Authors
- Larsen, T. K., McGlashan, T. H., & Moe, L. C.
- Venue
- Schizophrenia Bulletin
- Publisher
- Oxford University Press (OUP)
- Published
- 1996-01-01
- Volume
- 22
- Issue
- 2
- Pages
- 241-256
- ISSN
- 0586-7614 (ISSN-L)
- 1745-1701
- OpenAlex
- W2144081409
- Cited by
- 323
- References
- 33
- FWCI
- 9.86
- Type
- journal article
- Language
- en
- Open access
- closed
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- Larsen, T. K., McGlashan, T. H., & Moe, L. C. (1996). First-episode Schizophrenia: I. Early Course Parameters. Schizophrenia Bulletin. https://doi.org/10.1093/schbul/22.2.241
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
