Reference Identification

Acute phase reactants add little to composite disease activity indices for rheumatoid arthritis: validation of a clinical activity score.

Arthritis Res Ther, Aletaha D, Nell VP, Stamm T, Uffmann M, Pflugbeil S, Machold K, Smolen JS. dis 2005; 7:R796-806
Country: Austria
Language: English
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1175030/

Other references of interest

https://pubmed.ncbi.nlm.nih.gov/16273793/

The Simplified Disease Activity Index (SDAI) and the Clinical Disease Activity Index (CDAI): a review of their usefulness and validity in rheumatoid arthritis.

https://pubmed.ncbi.nlm.nih.gov/19772784/

Disease activity assessment of rheumatoid arthritis in daily practice: validity, internal consistency, reliability and congruency of the Disease Activity Score including 28 joints (DAS28) compared with the Clinical Disease Activity Index (CDAI). 

https://pubmed.ncbi.nlm.nih.gov/16273793/https://pubmed.ncbi.nlm.nih.gov/18957489/

Test‐retest reliability of disease activity core set measures and indices in rheumatoid arthritis

Instrument/Tool Translations References

Although the CDAI does not need formal transcultural validation, as it is not purely a PRO, the wording of the patient global assessment included may need caution.

https://arthritis-research.biomedcentral.com/articles/10.1186/s13075-016-1151-6# …

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Comparison of the the performance of both CDAI and SDAI in evaluation of disease activity in Moroccan patients with RA.

https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/s12891-015-071 …