Early development and qualitative evidence of content validity for the Psoriasis Symptom Inventory (PSI), a patient-reported outcome measure of psoriasis symptom severity
J Dermatolog Treat ,
Martin ML, McCarrier KP, Chiou CF et al. Early development and qualitative evidence of content validity for
the Psoriasis Symptom Inventory (PSI), a patient-reported outcome measure of psoriasis symptom
severity. J Dermatolog Treat 2013;24:255-60
Martin ML, McCarrier KP, Chiou CF et al dis 2013; 24:255-60
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https://www.ncbi.nlm.nih.gov/pubmed/23249143
Other references of interest
https://www.ncbi.nlm.nih.gov/pubmed/26206134
This study evaluates the measurement properties of the Psoriasis Symptom Inventory (PSI) in psoriatic arthritis (PsA).
https://www.ncbi.nlm.nih.gov/pubmed/23092173
Validation of the PSI for assessing severity of plaque psoriasis symptoms.