Longitudinal relationship between Personal and Social Performance (PSP) and anxiety symptoms in schizophrenia
| Autor: | Dong Chung Jung, Yongmin Ahn, Chul Eung Kim, Jin-Sang Yoon, Samuel Suk-Hyun Hwang, Yong Sik Kim, Hee-Yeon Jung, In-Jo Park |
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| Rok vydání: | 2015 |
| Předmět: |
Adult
Male medicine.medical_specialty Item difficulty Anxiety Models Psychological 03 medical and health sciences 0302 clinical medicine Quality of life (healthcare) Schizophrenic Psychology medicine Humans Psychiatry Aged Clinical Trials as Topic Rasch model Latent growth modeling Growth model Middle Aged medicine.disease 030227 psychiatry Psychiatry and Mental health Clinical Psychology Schizophrenia Quality of Life Female medicine.symptom Psychology Social Adjustment 030217 neurology & neurosurgery |
| Zdroj: | Journal of affective disorders. 190 |
| ISSN: | 1573-2517 |
| Popis: | Background We aimed to examine the longitudinal relationship between the personal and social functioning and anxiety symptoms in patients with schizophrenia. For this purpose, we confirmed the validity of the anxiety subscale of the Symptom-Checklist-90-Revised (SCL-90-R) and then applied the latent growth modeling method for longitudinal causal relationships. Methods Five hundred and seventy-eight patients diagnosed with schizophrenia were evaluated and 369 patients were included in the study at baseline. After conducting Rasch model analyses for the validation of the anxiety subscale in the SCL-90-R, we applied latent growth model to determine the causal relationship between the PSP and the anxiety symptoms. Results The validity of the anxiety subscale of the SCL-90-R was confirmed based on the Rasch rating model, where the criteria for Infit, Outfit, item difficulty, and point-measure correlations were satisfied. The results from the latent growth model showed that the intercept and slope (rate of change) of the PSP negatively predicted the slope of anxiety symptoms along the longitudinal trajectory. Together with previous studies examining the predictive role of anxiety symptoms on quality of life, our longitudinal findings lend evidence for bidirectional effects between quality of life and anxiety symptoms. The transactional nature of the relationship between anxiety symptoms and quality of life warrant further investigation using a longitudinal cross-lagged design. Conclusion The anxiety subscale of the SCL-90-R may be utilized by clinicians and researcher to make inferences about quality of life in addition to assessing anxiety symptoms in patients with schizophrenia. |
| Databáze: | OpenAIRE |
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