Spondyloarthritis & psoriatic arthritis
Psychometric Properties of Patient Global Assessment in Psoriatic Arthritis: A Systematic Literature Review
Authors' conclusion
PtGA is a valid and responsive tool in PsA. Correlations were higher with PROs and weaker with DA composite indices and PGA. PGA was usually scored lower than PtGA.
Study context
- Population
- Research articles in PubMed assessing psychometric properties of patient global assessment (PtGA) in psoriatic arthritis (PsA)60 articles
- Participants
- 17,453 participants
- Outcome
- Psychometric properties of PtGA in PsA (validity, responsiveness)
Methodological detailsOMERACT Filter 2.1, COSMIN terminology, meta-analysis of construct validity, 44 observational studies and 16 trials
- OMERACT Filter 2.1
- COSMIN terminology
- Meta-analysis of construct validity
- 44 observational studies and 16 trials
Pooled result
As reported in the abstract
Psychometric properties of PtGA in PsA
- Correlation between PtGA and patient-reported outcome (PROs) (strong)
- ρ > 0.50
- Correlation of PtGA with other DA indices and physician global assessment (PGA) (weak to moderate)
- ρ 0.20-0.50
- Responsiveness (24 studies): correlation with joint count index variations (strong)
- ρ 0.51-0.52
- Different PtGA formulations
- 27
- Studies describing positive discordance (PtGA > PGA)
- 3
Original publication
Psychometric Properties of Patient Global Assessment in Psoriatic Arthritis: A Systematic Literature Review. J Rheumatol. Published 15 February 2024. doi:10.
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