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Review
. 2018 Apr;38(Suppl 1):5-17.
doi: 10.1007/s00296-018-3944-1. Epub 2018 Apr 7.

Cross-cultural adaptation and psychometric evaluation of the Juvenile Arthritis Multidimensional Assessment Report (JAMAR) in 54 languages across 52 countries: review of the general methodology

Francesca Bovis  1 , Alessandro Consolaro  1   2 , Angela Pistorio  3 , Marco Garrone  1 , Silvia Scala  1 , Elisa Patrone  1 , Mariangela Rinaldi  1 , Luca Villa  1 , Alberto Martini  4 , Angelo Ravelli  1   2 , Nicolino Ruperto  5 ; Paediatric Rheumatology International Trials Organisation (PRINTO)
Affiliations
Review

Cross-cultural adaptation and psychometric evaluation of the Juvenile Arthritis Multidimensional Assessment Report (JAMAR) in 54 languages across 52 countries: review of the general methodology

Francesca Bovis et al. Rheumatol Int. 2018 Apr.

Abstract

The aim of this project was to cross-culturally adapt and validate the Juvenile Arthritis Multidimensional Assessment Report (JAMAR) questionnaire in 54 languages across 52 different countries that are members of the Paediatric Rheumatology International Trials Organisation (PRINTO). This effort was part of a wider project named Epidemiology and Outcome of Children with Arthritis (EPOCA) to obtain information on the frequency of juvenile idiopathic arthritis (JIA) categories in different geographic areas, the therapeutic approaches adopted, and the disease status of children with JIA currently followed worldwide. A total of 13,843 subjects were enrolled from the 49 countries that took part both in the cross-cultural adaptation phase and in the related validation and data collection: Algeria, Argentina, Belgium, Brazil, Bulgaria, Canada, Chile, Colombia, Croatia, Czech Republic, Denmark, Ecuador, Egypt, Estonia, Finland, France, Georgia, Germany, Greece, Hungary, India, Islamic Republic of Iran, Israel, Italy, Latvia, Libya, Lithuania, Mexico, Netherlands, Norway, Oman, Paraguay, Poland, Portugal, Romania, Russian Federation, Saudi Arabia, Serbia, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Thailand, Turkey, Ukraine, United Kingdom and United States of America. 9021 patients had JIA (10.7% systemic arthritis, 41.9% oligoarthritis, 23.5% RF negative polyarthritis, 4.2% RF positive polyarthritis, 3.4% psoriatic arthritis, 10.6% enthesitis-related arthritis and 5.7% undifferentiated arthritis) while 4822 were healthy children. This introductory paper describes the overall methodology; results pertaining to each country are fully described in the accompanying manuscripts. In conclusion, the JAMAR translations were found to have satisfactory psychometric properties and it is thus a reliable and valid tool for the multidimensional assessment of children with JIA.

Keywords: Cross-cultural adaptation and psychometric evaluation methodology; Healthy children; Juvenile Arthritis Multidimensional Assessment Report (JAMAR); Juvenile idiopathic arthritis (JIA); Review.

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Conflict of interest statement

Conflict of interest

Dr Ruperto has received grants from BMS, Hoffman-La Roche, Janssen, Novartis, Pfizer, Sobi, during the conduct of the study and personal fees and speaker honorarium from Abbvie, Ablynx, Amgen, AstraZeneca, Baxalta Biosimilars, Biogen Idec, Boehringer, Bristol Myers Squibb, Celgene, Eli-Lilly, EMD Serono, Gilead Sciences, Janssen, Medimmune, Novartis, Pfizer, Rpharm, Roche, Sanofi, Servier and Takeda. Prof. Ravelli has received speaker’s bureaus and consulting fees from AbbVie, BMS, Pfizer, Hoffman LaRoche, Novartis, Centocor. Prof. Martini does not have any conflict of interest to declare since 1 march 2016, when he became the Scientific Director of the G. Gaslini Hospital: this role does not allow him to render private consultancies resulting in personal income. Prof. Martini performs consultancy activities on behalf of the Gaslini Institute for Abbvie, Boehringer, Novartis, R-Pharm, but the money received for these activities were directly transferred to the Gaslini Institute’s bank account. Before march 2016, when AM was the head of Pediatric Rheumatology department at the G. Gaslini Hospital, he received speaker bureaus and consultancies fees from Abbvie, Astrazeneca, Novartis, Pfizer, Roche, R-Pharm, Sanofi, UCB. Dr Consolaro, Dr Bovis, Dr Pistorio, Mr Garrone, Ms Scala, Ms Patrone, Ms Rinaldi and Mr Villa have nothing to disclose in relation to this manuscript.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study as per the requirement of the local ethical committee.

Figures

Fig. 1
Fig. 1
Diagram summarising the steps followed for the cross-cultural adaptation and validation procedures
See this image and copyright information in PMC

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