Reference Identification

Reliability and validity of the University of California, Los Angeles Scleroderma Clinical Trial Consortium Gastrointestinal Tract Instrument.

Arthritis Rheum, Khanna D, Hays RD, Maranian P, Seibold JR, Impens A, Mayes MD, Clements PJ, Getzug T, Fathi N, Bechtel A, Furst DE. dis 2009; 15:1257-63
Country: USA
Language: English
https://pubmed.ncbi.nlm.nih.gov/19714600/

Other references of interest

https://pubmed.ncbi.nlm.nih.gov/21724704/

This study assessed the internal consistency and validity of the UCLA SCTC GIT 2.0 in a different population than was used in the original study.

https://pubmed.ncbi.nlm.nih.gov/21724699/

This study provides minimally important difference MID estimates for the UCLA SCTC GIT 2.0 scales in a longitudinal observational cohort.

Instrument/Tool Translations References

Translation methodology conforming to the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) guideline

https://pubmed.ncbi.nlm.nih.gov/26339890/

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Translation and validation in Romanian

https://pubmed.ncbi.nlm.nih.gov/26316302/

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Translation and validation in Dutch

https://pubmed.ncbi.nlm.nih.gov/24984228/