Reference Identification

Development and validation of a new disease activity index as a numerical sum of four variables in patients with early arthritis.

Arthritis Care Res (Hoboken)., Castrejón I, Carmona L, Ortiz AM, Belmonte MA, Martinez-Lopez JA, Gonzalez-Alvaro I. dis 2013; 65:518–25
Country: Spain
Language: English

Other references of interest

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0161727

Cut-Offs and Response Criteria for the Hospital Universitario La Princesa Index (HUPI) and Their Comparison to Widely-Used Indices of Disease Activity in Rheumatoid Arthritis.

This article aims to estimate cut-off points and to establish response criteria for the HUPI in patients with chronic polyarthritis.

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0214717#pone.0214717.ref012

The comparative responsiveness of Hospital Universitario Princesa Index and other composite indices for assessing rheumatoid arthritis activity. 

This article aims to evaluate the responsiveness in terms of correlation of the HUPI comparatively to the traditional composite indices used to assess disease activity in RA, and to compare the performance of HUPI-based response criteria with that of the EULAR response criteria.

https://pubmed.ncbi.nlm.nih.gov/24682439/

Biologic therapy response and drug survival for females compared to males with rheumatoid arthritis: a cohort study. 

This article uses the HUPI to eliminate the observed differences in disease activity scores between females and males. 

Instrument/Tool Translations References

---