Int Neurourol J.  2022 Feb;26(Suppl 1):S47-56. 10.5213/inj.2040476.238.

Korean Version of the Patient Perception of Study Medication Questionnaire: Translation and Linguistic Validation

Affiliations
  • 1Department of Urology, CHA Bundang Medical Center, CHA University College of Medicine, Seongnam, Korea
  • 2Department of Urology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea

Abstract

Purpose
The patient perception of study medication (PPSM) questionnaire consists of 12 questions designed to quantify patient satisfaction with the efficacy of study treatment by focusing on specific changes that patients experience during the study period. This study aimed to develop a Korean version of the PPSM questionnaire.
Methods
The linguistic validation process consisted of obtaining permission for translation, forward translation, reconciliation, backward translation, cognitive debriefing, and proofreading. Two independent bilingual translators translated the original version of the questionnaire, and a panel discussed and combined the 2 versions. Another independent translator performed backward translation of the reconciled version, after which 15 patients underwent the cognitive debriefing.
Results
The 12 questions and 4 response scales of the PPSM questionnaire were forward translated into 2 Korean versions. The terms were adjusted to conceptually equivalent expressions in Korean. After backward translation, the panel made minor changes to the forward translations for brevity and better readability. No difficulties were experienced during cognitive debriefing by 15 patients, and all items were reported to be generally easy to understand.
Conclusions
The Korean version of the PPSM questionnaire has been successfully translated and validated. The questionnaire is appropriate for assessing symptom satisfaction in patients that undergo benign prostatic hyperplasia pharmacotherapy.

Keyword

Patient-Reported Outcomes Measures; Prostatic hyperplasia; Surveys and questionnaires; Translations
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