Highlights
- •Treatment Satisfaction Questionnaire for Medication is a questionnaire that assesses patient treatment satisfaction. It has 4 sections and is scored out of 400. It has been translated into and validated in many languages; version II, however, did not have a Persian translation.
- •Psoriasis is an inflammatory skin condition, for which several treatments exist depending on the severity level. Treatment adherence and satisfaction is essential in managing it effectively, and studies have shown that patients experience more satisfaction with biologic use.
- •Treatment Satisfaction Questionnaire for Medication version II is valid and reliable in Persian.
- •Patients with psoriasis are significantly more satisfied with biologic treatments.
- •Patients are more satisfied with their treatments if they are older than 50 years, have less severe disease, or lack arthritis symptoms.
Abstract
Objectives
Psoriasis is a dermatological condition often associated with systemic comorbidities
such as arthritis. Because of the vital role of treatment compliance in improvement
in patients’ condition and the scarcity of studies on this subject in Iran, we decided
to measure and compare treatment satisfaction (as a predictor of compliance) of patients
with psoriasis by using the Treatment Satisfaction Questionnaire for Medication (TSQM).
Methods
We administered the TSQM version II to adult patients with psoriasis, referring to
the clinics and wards of the Razi hospital. First, we translated and investigated
the validity and reliability of the TSQM in a group of 34 patients; then, we measured
the satisfaction of 100 patients with psoriasis who were receiving topical, phototherapy,
or systemic or biologic medications.
Results
Content validity was established by experts’ review of the translation and by comparing
the results to those of previous studies. Then, reliability was confirmed by calculating
reliability and agreement measures (Cronbach’s alpha = 0.864, intraclass correlation
coefficient = 0.984, and Pearson’s correlation = 0.969). Biologic medications showed
the highest satisfaction score in “effectiveness,” “convenience,” “global satisfaction,”
and “total score” (P = .000). Topical treatments demonstrated the highest “side effects” score (P = .006). Patients older than 50 years were significantly more satisfied than younger
patients (P = .029). Patients with a Psoriasis Area Severity Index of 5 or more and patients
with psoriatic arthritis reported lower satisfaction (P = .012, P = .000). Treatment satisfaction of patients with arthritis was higher with biologic
medications than with traditional systemic medications (P = .000).
Conclusions
TSQM, which had not been used in Persian before, is valid and reliable in Persian
and provides reproducible results. Patients reported the highest satisfaction with
the use of biologic agents, which was associated with age, Psoriasis Area Severity
Index, and arthritis.
Keywords
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Article info
Publication history
Published online: November 18, 2021
Accepted:
June 20,
2021
Identification
Copyright
© 2021 ISPOR--The professional society for health economics and outcomes research. Published by Elsevier Inc.
