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The Validity of the Parsley Symptom Index: an e-PROM designed for Telehealth
Hants Williams;
Sarah Steinberg;
Kendall Leon;
Catherine O’Shea;
Robin Berzin;
Heather Hagg
ABSTRACT
Background:
The Parsley Symptom Index (PSI) is a recently developed symptom assessment for adults with chronic disease in telehealth settings.
Objective:
The purpose of this study was to validate the PSI against the Self-Rated Health (SRH) item.
Methods:
This prospective cohort study took place from January 15, 2021 to December 15, 2021 among a sample of 10,519 adult patients at Parsley Health, a subscription based holistic medical practice. The PSI and the SRH were completed by patients via an online portal. The association between the PSI and SRH was assessed via polyserial and polychoric correlations, while weighted kappa scores provided information related to agreement between the PSI and SRH.
Results:
From 22,748 responses, there were moderate levels of association (polyserial r=0.51; polychoric r=0.52) and agreement (weighted ???? = 0.46) between the PSI and SRH. In total 74.2% (16865) of responses between the PSI and SRH were relatively congruent while 36.2% (8229) were literally congruent.
Conclusions:
The PSI demonstrates validity with the SRH for adults with chronic disease in a telehealth setting.
Citation
Please cite as:
Williams H, Steinberg S, Leon K, O’Shea C, Berzin R, Hagg H
Validity of the Parsley Symptom Index—an Electronic Patient-Reported Outcomes Measure Designed for Telehealth: Prospective Cohort Study