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Pignon B, Wiernik E, Kab S, Matta J, Toussaint A, Löewe B, Horn M, Amad A, Fovet T, Gouraud C, Ouazana-Vedrines C, Pitron V, Goldberg M, Zins M, Lemogne C. Somatic Symptom Disorder-B criteria scale (SSD-12): Psychometric properties of the French version and associations with health outcomes in a population-based cross-sectional study. J Psychosom Res 2024; 176:111556. [PMID: 38056109 DOI: 10.1016/j.jpsychores.2023.111556] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/13/2023] [Accepted: 11/25/2023] [Indexed: 12/08/2023]
Abstract
OBJECTIVE The 12-item Somatic Symptom Disorder-B Criteria Scale (SSD-12) is a self-reported questionnaire designed to assess the B criteria of the DSM-5 somatic symptom disorder. In this cross-sectional study, we aimed to examine the psychometric properties of the SSD-12 French version and associated health outcomes. METHODS Participants were volunteers from the population-based CONSTANCES cohort who reported at least one new symptom that occurred between March 2020 and January 2021. Depressive symptoms were measured with the Center for Epidemiologic Studies-Depression scale (CES-D). RESULTS A total of 18,796 participants completed the SSD-12. The scree plot was consistent with a 1-factor structure, while goodness-of-fit indices of the confirmatory factorial analyses and clinical interpretability were consistent with a 3-factor structure (excluding the item 7): 'Perceived severity', 'Perceived impairment', 'Negative expectations'. The Cronbach's α coefficients of the total and factors scores were 0.90, 0.88, 0.84 and 0.877, respectively. The total score was associated with depressive symptoms (Spearmann's rho: 0.32), self-rated health (-0.46), the number of persistent symptoms (0.32), and seeking medical consultation (odds ratio [95% confidence interval] for one interquartile range increase: 1.51 [1.48-1.54]). Among participants seeking medical consultation, those with higher SSD-12 scores were more likely to have their symptoms attributed to "stress/anxiety/depression" (1.32 [1.22-1.43]) and "psychosomatic origin" (1.25 [1.20-1.29]), and less to "COVID-19" (0.89 [0.85-0.93]). CONCLUSION While the SSD-12 French version can be used as a unidimensional tool, it also has a 3-factor structure, somewhat different from the DSM-5 theoretical structure, with high internal consistency and clinically meaningful associations with other health outcomes.
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Affiliation(s)
- Baptiste Pignon
- Université Paris Cité, Paris Saclay University, UVSQ, INSERM, UMS 011 « Population-based Cohorts Unit », Paris, France
| | - Emmanuel Wiernik
- Université Paris Cité, Paris Saclay University, UVSQ, INSERM, UMS 011 « Population-based Cohorts Unit », Paris, France
| | - Sofiane Kab
- Université Paris Cité, Paris Saclay University, UVSQ, INSERM, UMS 011 « Population-based Cohorts Unit », Paris, France
| | - Joane Matta
- Université Paris Cité, Paris Saclay University, UVSQ, INSERM, UMS 011 « Population-based Cohorts Unit », Paris, France
| | - Anne Toussaint
- Klinik und Poliklinik für Psychosomatische Medizin und Psychotherapie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Bernd Löewe
- Klinik und Poliklinik für Psychosomatische Medizin und Psychotherapie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Mathilde Horn
- Univ Lille, Inserm, CHU de Lille, U1172, Lille Neuroscience & Cognition, 59000 Lille, France
| | - Ali Amad
- Univ Lille, Inserm, CHU de Lille, U1172, Lille Neuroscience & Cognition, 59000 Lille, France
| | - Thomas Fovet
- Univ Lille, Inserm, CHU de Lille, U1172, Lille Neuroscience & Cognition, 59000 Lille, France
| | - Clément Gouraud
- Service de Psychiatrie de l'adulte, AP-HP, Hôpital Hôtel-Dieu, Paris, France; Centre du Sommeil et de la Vigilance-Pathologie professionnelle, APHP, Hôtel-Dieu, F-75004 Paris, France
| | - Charles Ouazana-Vedrines
- Service de Psychiatrie de l'adulte, AP-HP, Hôpital Hôtel-Dieu, Paris, France; Université Paris Cité and Université Sorbonne Paris Nord, Inserm, INRAE, Center for Research in Epidemiology and StatisticS (CRESS), F-75004 Paris, France
| | - Victor Pitron
- Université Paris Cité, VIFASOM (Vigilance Fatigue Sommeil et Santé Publique), Paris, France; Centre du Sommeil et de la Vigilance-Pathologie professionnelle, APHP, Hôtel-Dieu, F-75004 Paris, France
| | - Marcel Goldberg
- Université Paris Cité, Paris Saclay University, UVSQ, INSERM, UMS 011 « Population-based Cohorts Unit », Paris, France
| | - Marie Zins
- Université Paris Cité, Paris Saclay University, UVSQ, INSERM, UMS 011 « Population-based Cohorts Unit », Paris, France
| | - Cédric Lemogne
- Service de Psychiatrie de l'adulte, AP-HP, Hôpital Hôtel-Dieu, Paris, France; Université Paris Cité and Université Sorbonne Paris Nord, Inserm, INRAE, Center for Research in Epidemiology and StatisticS (CRESS), F-75004 Paris, France.
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