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Validation of the Danish version of the brief negative symptom scale

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Názov: Validation of the Danish version of the brief negative symptom scale
Autori: Johannes Gehr, Birte Glenthøj, Mette Ødegaard Nielsen
Zdroj: Nordic Journal of Psychiatry. 73:425-432
Informácie o vydavateľovi: Informa UK Limited, 2019.
Rok vydania: 2019
Predmety: Adult, Male, Psychiatric Status Rating Scales, Denmark, Reproducibility of Results, Middle Aged, Denmark/epidemiology, 3. Good health, Young Adult, 03 medical and health sciences, Cross-Sectional Studies, 0302 clinical medicine, Schizophrenia/diagnosis, Symptom Assessment/methods, Schizophrenia, Humans, Female, Schizophrenic Psychology, Symptom Assessment, Psychiatric Status Rating Scales/standards
Popis: Objective: The Brief Negative Symptom Scale (BNSS) is an instrument for evaluating negative symptoms (NS) in schizophrenia based on the 2005 consensus statement by the National Institute of Mental Health. This study examines the validity and reliability of the Danish version of BNSS. Materials and methods: Acutely and chronically affected patients with schizophrenia or schizoaffective disorder were assessed with BNSS along with other psychopathological scales and clinical measures. Convergent and discriminant validity of BNSS was evaluated by its relationships with these assessments. Inter-rater agreement was estimated by the intraclass correlation coefficient (ICC). Results: Forty-nine subjects were included; the mean age was 33.1 (±10.8) years and 32 (65%) were males. BNSS correlated strongly with traditional assessment tools for NS and poorly with measures of depressive and extrapyramidal symptoms, except for Parkinsonism. Moreover, BNSS correlated well with the assessment of positive symptoms. The ICC of BNSS was 0.95 (n = 19, 95% CI: 0.88-0.98). Conclusions: Overall, BNSS holds appropriate psychometric properties in terms of reliability and validity. However, discriminant validity was compromised by correlations with positive symptoms and Parkinsonism. The former originates presumably from NS secondary to positive symptoms since the sample included acutely psychotic patients, and the latter from overlapping rating criteria regarding facial expressivity impairment.
Druh dokumentu: Article
Jazyk: English
ISSN: 1502-4725
0803-9488
DOI: 10.1080/08039488.2019.1648549
Prístupová URL adresa: https://pubmed.ncbi.nlm.nih.gov/31407936
https://www.tandfonline.com/doi/full/10.1080/08039488.2019.1648549
https://europepmc.org/article/MED/31407936
https://www.ncbi.nlm.nih.gov/pubmed/31407936
Prístupové číslo: edsair.doi.dedup.....74156870cd0e0908491bc7867e9ffd9b
Databáza: OpenAIRE
Popis
Abstrakt:Objective: The Brief Negative Symptom Scale (BNSS) is an instrument for evaluating negative symptoms (NS) in schizophrenia based on the 2005 consensus statement by the National Institute of Mental Health. This study examines the validity and reliability of the Danish version of BNSS. Materials and methods: Acutely and chronically affected patients with schizophrenia or schizoaffective disorder were assessed with BNSS along with other psychopathological scales and clinical measures. Convergent and discriminant validity of BNSS was evaluated by its relationships with these assessments. Inter-rater agreement was estimated by the intraclass correlation coefficient (ICC). Results: Forty-nine subjects were included; the mean age was 33.1 (±10.8) years and 32 (65%) were males. BNSS correlated strongly with traditional assessment tools for NS and poorly with measures of depressive and extrapyramidal symptoms, except for Parkinsonism. Moreover, BNSS correlated well with the assessment of positive symptoms. The ICC of BNSS was 0.95 (n = 19, 95% CI: 0.88-0.98). Conclusions: Overall, BNSS holds appropriate psychometric properties in terms of reliability and validity. However, discriminant validity was compromised by correlations with positive symptoms and Parkinsonism. The former originates presumably from NS secondary to positive symptoms since the sample included acutely psychotic patients, and the latter from overlapping rating criteria regarding facial expressivity impairment.
ISSN:15024725
08039488
DOI:10.1080/08039488.2019.1648549