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Delmas H, Batail JM, Falissard B, Robert G, Rangé M, Brousse S, Soulabaille J, Drapier D, Naudet F. A randomised cross-over study assessing the "blue pyjama syndrome" in major depressive episode. Sci Rep 2017; 7:2629. [PMID: 28572626 PMCID: PMC5453951 DOI: 10.1038/s41598-017-02411-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/19/2017] [Indexed: 11/12/2022] Open
Abstract
This paper introduces a “blue pyjama syndrome” (whereby wearing hospital pyjamas results in an exaggerated impression of severity). We performed a 5-day, prospective, randomized, cross-over study in a French mood disorder unit for inpatients. At Day 1 (D1) and Day 5 (D5), two 5-minute video interviews were recorded with patients in pyjamas or in day clothes (the sequence was randomly allocated). Psychiatrists unaware of the study objective assessed the videos and scored their clinical global impressions (CGI, with scores ranging from 1 to 7). Of 30 participants with major depressive episode selected for inclusion, 26 participants (69% women) provided useable data for an evaluation by 10 psychiatrists. Pyjamas significantly increased the psychiatrists’ CGI ratings of disease severity by 0·65 [0·27; 1·02] points. The psychiatrists’ global impressions also rated patients as significantly less severe at D5 in comparison with D1 by −0·66 [−1·03; −0·29] points. The “blue pyjama syndrome” is in the same order of magnitude as the difference observed after a week of hospitalisation. This potentially calls into question the reliability and validity of observer ratings of depression.
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Affiliation(s)
- Hélèna Delmas
- Academic Psychiatry Department, Centre Hospitalier Guillaume Régnier, Rennes, France
| | - Jean-Marie Batail
- Academic Psychiatry Department, Centre Hospitalier Guillaume Régnier, Rennes, France.,EA 4712 Behavior and Basal Ganglia, CHU Rennes, Rennes 1 University, Rennes, France
| | - Bruno Falissard
- CESP, Univ.Paris-Sud, Université Paris-Saclay, UVSQ, INSERM U1178, Paris, France
| | - Gabriel Robert
- Academic Psychiatry Department, Centre Hospitalier Guillaume Régnier, Rennes, France.,EA 4712 Behavior and Basal Ganglia, CHU Rennes, Rennes 1 University, Rennes, France
| | - Maxence Rangé
- Academic Psychiatry Department, Centre Hospitalier Guillaume Régnier, Rennes, France.,EA 4712 Behavior and Basal Ganglia, CHU Rennes, Rennes 1 University, Rennes, France
| | - Stéphane Brousse
- Academic Psychiatry Department, Centre Hospitalier Guillaume Régnier, Rennes, France
| | - Jacques Soulabaille
- Academic Psychiatry Department, Centre Hospitalier Guillaume Régnier, Rennes, France
| | - Dominique Drapier
- Academic Psychiatry Department, Centre Hospitalier Guillaume Régnier, Rennes, France.,EA 4712 Behavior and Basal Ganglia, CHU Rennes, Rennes 1 University, Rennes, France
| | - Florian Naudet
- INSERM CIC-P 1414, Clinical Investigation Center, CHU Rennes, Rennes 1 University, Rennes, France. .,Meta-Research Innovation Center at Stanford (METRICS), Stanford School of Medicine, Palo Alto, CA, 94304, USA.
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