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Musculoskelet Sci Pract. 2018 Oct;37:20-28. doi: 10.1016/j.msksp.2018.06.005. Epub 2018 Jun 15.

Cross-cultural adaptation and validity of the Italian version of the Central Sensitization Inventory.

Author information

1
Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands; Amsterdam Movement Sciences Research Institute, Amsterdam, The Netherlands; Amsterdam Public Health Research Institute, Amsterdam, The Netherlands. Electronic address: a.chiarotto@vumc.nl.
2
FACEit, Italian Society of Integrated Therapy for Cervico-Cranio-Facial Pain and Dysfunction, Italy; Department of Biomedical Sciences, University of Padova, Padova, Italy; Studio Fisioterapico Viti, Bologna, Italy.
3
Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, Genova, Italy.
4
Department of Neurophysiology, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genova - Campus of Savona, Savona, Italy.
5
School of Physical and Occupational Therapy, McGill University, Montreal, Canada; School of Medicine and Surgery, PhD Program in Neuroscience, University of Milano-Bicocca, Milan, Italy.

Abstract

BACKGROUND:

Central sensitization (CS) is an important feature in patients with chronic pain. The Central Sensitization Inventory (CSI) was developed with the goal of detecting the patients' symptoms related to CS.

OBJECTIVES:

This study aimed at cross-culturally adapting the CSI into Italian, and at assessing its structural and construct validity in patients with different chronic pain disorders.

DESIGN:

Clinimetric study.

METHODS:

The Italian version of the CSI (CSI-I) was generated following forward and backward translations, expert committee review, and pilot-testing. Patients with pain for ≥3 months were eligible if diagnosed with: low back pain (LBP), temporomandibular disorder (TMD), hand osteoarthritis (HOA), fibromyalgia (FM), or rheumatoid arthritis (RA). Structural validity was assessed with exploratory factor analysis and parallel analysis based on minimum rank factor analysis; construct validity was evaluated by testing ten hypotheses on: 1) expected differences between relevant subgroups, 2) expected correlations with other instruments measuring pain intensity, physical functioning, psychological functioning, headache symptoms, and pain self-efficacy.

RESULTS:

220 patients were included: 35% with LBP, 17% with TMD, 19% with HOA, 9% with FM, and 20% with RA. Factor analyses revealed that the CSI-I is a unidimensional instrument. Construct validity was satisfactory since 80% of the hypotheses were met.

CONCLUSIONS:

The CSI-I was successfully developed and exhibited satisfactory validity in patients with chronic pain. Its reliability, responsiveness and content validity should be investigated in future studies. Until robust evidence indicates a strong relationship between CS and the CSI-I, caution should be adopted in claiming that the CSI-I measures CS.

KEYWORDS:

Central sensitization; Chronic pain; Measurement properties; Patient-reported measurement instrument

PMID:
29966856
DOI:
10.1016/j.msksp.2018.06.005
[Indexed for MEDLINE]

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