Deutsche Version der Northoff Catatonia Rating Scale (NCRS-dv): Ein validiertes Messinstrument zur Erfassung katatoner Symptome

Translated title of the contribution: German version of the Northoff catatonia rating scale (NCRS-dv): A validated instrument for measuring catatonic symptoms

D. Hirjak, P. A. Thomann, Georg Northoff, K. M. Kubera, R. C. Wolf

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The clinical picture of catatonia includes impressive motor phenomena, such as rigidity, dyskinesia, festination, negativism, posturing, catalepsy, stereotypies and mannerisms, along with affective (e. g. aggression, anxiety, anhedonism or emotional lability) and behavioral symptoms (e.g. mutism, autism, excitement, echolalia or echopraxia). In English speaking countries seven catatonia rating scales have been introduced, which are widely used in clinical and scientific practice. In contrast, only one validated catatonia rating scale is available in Germany so far. In this paper, we introduce the German version of the Northoff catatonia rating scale (NCRS-dv). The original English version of the NCRS consists of 40 items describing motor (13 items), affective (12 items) and behavioral (15 items) catatonic symptoms. The NCRS shows high internal reliability (Crombachs alpha = 0.87), high interrater (r = 0.80–0.96) and high intrarater (r = 0.80–0.95) reliability. Factor analysis of the NCRS revealed four domains: affective, hyperactive or excited, hypoactive or retarded and behavior with individual eigenvalues of 8.98, 3.61, 2.98 and 2.82, respectively, which explained 21.5 %, 9.3 %, 7.6 % and 7.2 % of variance, respectively. In conclusion, the NCRS-dv represents a second validated instrument which can be used by German clinicians and scientists for the assessment of catatonic symptoms.

Translated title of the contributionGerman version of the Northoff catatonia rating scale (NCRS-dv): A validated instrument for measuring catatonic symptoms
Original languageGerman
Pages (from-to)787-796
Number of pages10
JournalNervenarzt
Volume88
Issue number7
DOIs
Publication statusPublished - Jul 1 2017
Externally publishedYes

Keywords

  • Catatonia
  • Diagnosis
  • Genuine motor symptoms
  • Scale
  • Schizophrenia

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Psychiatry and Mental health

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