Converting Positive and Negative Symptom Scores Between PANSS and SAPS/SANS
| Autor: | Juan R. Bustillo, Kelvin O. Lim, Daniel H. Mathalon, Aysenil Belger, Dana Nguyen, Adrian Preda, Jessica A. Turner, Steven G. Potkin, Fbirn, Theo G.M. van Erp, Judith M. Ford, James T. Voyvodic, Lawrence Faziola, Sarah McEwen |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male medicine.medical_specialty Psychometrics Adolescent Article Young Adult Rating scale Predictive Value of Tests Surveys and Questionnaires Linear regression medicine Humans Psychiatry Scale for the Assessment of Negative Symptoms Biological Psychiatry Psychiatric Status Rating Scales Positive and Negative Syndrome Scale Reproducibility of Results Regression analysis Middle Aged medicine.disease Psychiatry and Mental health Schizophrenia Predictive value of tests Regression Analysis Female Schizophrenic Psychology Psychology Clinical psychology |
| Popis: | The Scale for the Assessment of Positive Symptoms (SAPS), the Scale for the Assessment of Negative Symptoms (SANS), and the Positive and Negative Syndrome Scale for Schizophrenia (PANSS) are the most widely used schizophrenia symptom rating scales, but despite their co-existence for 25 years no easily usable between-scale conversion mechanism exists. The aim of this study was to provide equations for between-scale symptom rating conversions. Two- hundred-and-five schizophrenia patients [mean age±SD=39.5±11.6), 156 males] were assessed with the SANS, SAPS, and PANSS. Pearson’s correlations between symptom scores from each of the scales were computed. Linear regression analyses, on data from 176 randomly selected patients, were performed to derive equations for converting ratings between the scales. Intraclass correlations, on data from the remaining 29 patients, not part of the regression analyses, were performed to determine rating conversion accuracy. Between-scale positive and negative symptom ratings were highly correlated. Intraclass correlations between the original positive and negative symptom ratings and those obtained via conversion of alternative ratings using the conversion equations were moderate to high (ICCs = 0.65 to 0.91). Regression-based equations may be useful for conversion between schizophrenia symptom severity as measured by the SANS/SAPS and PANSS, though additional validation is warranted. This study’s conversion equations, implemented at http::/converteasy.org, may aid in the comparison of medication efficacy studies, in meta- and mega-analyses examining symptoms as moderator variables, and in retrospective combination of symptom data in multi-center data sharing projects that need to pool symptom rating data when such data are obtained using different scales. |
| Databáze: | OpenAIRE |
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