Psychometric properties of the stagnation scale in medication overuse headache patients

The Journal of Headache and Pain

Research Article

Paolo Martelletti¹  Monica Migliorati²  Marco Innamorati²  Maurizio Pompili²  Federica Ricci²  Paolo Girardi²  Denise Erbuto²  Mario Amore³  Dorian A Lamis⁴ 

[1] Department of Clinical and Molecular Medicine, Sapienza University of Rome and Regional Referral Headache Centre, Sant’Andrea Hospital, Rome, Italy;Department of Neurosciences, Mental Health and Sensory Organs, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome, Italy;Department of Neurosciences, Rehabilitation, Ophthalmology and Genetics, Section of Psychiatry, University of Genova, Genova, Italy;Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA;

关键词: Medication overuse headache;    Stagnation;    Depression;    Structural equation modeling;   

DOI  :  10.1186/1129-2377-16-2

 received in 2014-09-01, accepted in 2014-11-26,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundMedication-overuse headache (MOH) is often comorbid with emotional disturbances, contributing to poorer outcomes. The aims of the present study were to assess the psychometric properties of the Stagnation Scale in a sample of MOH patients, and to compare two factor models: a three-factor model reported in previous studies and a proposed bi-factor model.MethodsConsecutive adult outpatients (N = 310) admitted to the Regional Referral Headache Centre of the Sant’Andrea Hospital in Rome (Italy) were administered the Stagnation Scale and two questionnaires measuring depression and perceived disability.ResultsThe original three-factor model demonstrated an adequate fit to the data (χ2101 = 238.70; p < 0.001; Root Mean Square Error of Approximation [RMSEA] = 0.07; 90% CI of RMSEA = 0.06 / 0.08; Comparative Fit Index [CFI] = 0.98; Weighted Root Mean Square Residual [WRMR] = 0.75). However, the bi-factor model had a comparable or even better fit, with a RMSEA of 0.05 (90% CI: 0.04 / 0.07), providing strong evidence for an absolute fit to the data (χ288 = 161.43; p < 0.001; RMSEA = 0.05; 90% CI of RMSEA = 0.04 / 0.07; CFI = 0.99; WRMR = 0.56). The stagnation general factor and all the group factors correlated significantly and positively with convergent measures.ConclusionsThere is support for the use of the Stagnation Scale in MOH patients, with the goal of better understanding the role of psychological factors in the evolution and course of the disorder.

【 授权许可】

Unknown   
© Innamorati et al.; licensee Springer. 2015. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.