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Title

A video Clinical Global Impression (CGI) in obsessive compulsive disorder

Authors
Bourredjem, Abderrahmane
Pelissolo, Antoine
Rotge, Jean-Yves
Jaafari, Nematollah
Machefaux, Sebastien
Quentin, Solene
Bui, Eric
Bruno, Nicolas
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CollaborationWith : Pollak, Pierre
Published in Psychiatry Research. 2011, vol. 186, no. 1, p. 117-22
Abstract The Clinical Global Impression scale (CGI) is frequently used in clinical research because of its face validity and ease of use but data on its reliability are scarce. Our goal was to estimate the reliability of the scale and compare reliability between face-to-face and video scoring. We analyzed 50 different video interviews recorded during 5 visits of a crossover trial to study the effect of subthalamic nucleus stimulation. Six specialized clinicians rated the CGI using these videos, providing 300 different ratings. The intraclass correlation was lower at inclusion (0.30 [0.13-0.50]) than at later visits (0.68 [0.61-0.80]). Reliability was not influenced by the patients' stimulation status. The mean of at least two independent evaluations of the video is needed to achieve an ICC greater than 0.8. The video CGI is a valid clinical outcome measure suitable for clinical trials (ClinicalTrials.gov number, NCT00169377).
Keywords AdultCross-Over StudiesDeep Brain Stimulation/methodsDouble-Blind MethodFemaleFollow-Up StudiesHumansMaleMiddle AgedObsessive-Compulsive Disorder/diagnosis/therapyPsychiatric Status Rating ScalesReproducibility of ResultsSeverity of Illness IndexStatistics, NonparametricSubthalamic Nucleus/physiologyTime FactorsVideo Recording/methods
Identifiers
PMID: 20621362
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Article (Published version) (373 Kb) - document accessible for UNIGE members only Limited access to UNIGE
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Research group Maladie de Parkinson (911)
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BOURREDJEM, Abderrahmane et al. A video Clinical Global Impression (CGI) in obsessive compulsive disorder. In: Psychiatry Research, 2011, vol. 186, n° 1, p. 117-22. https://archive-ouverte.unige.ch/unige:45241

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Deposited on : 2015-01-14

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