the persian syncope functional status questionnaire: a validity and reliability study

Background: syncope is defined as a transient loss of consciousness, with vasovagal syncope (vvs) being the most common cause. although vvs episodes are typically self-limiting, they can significantly impact patients' quality of life. the syncope functional status questionnaire (sfsq) is an internationally standardized tool designed to assess two major health dimensions: the physical and psychosocial domains. this study aimed to translate and culturally adapt the sfsq into persian and assess its validity and reliability.methods: this study was conducted in tehran, iran, between october 2022 and january 2023. it consisted of three phases: first, the translation and cultural adaptation of the questionnaire into persian; second, an assessment of the comprehensibility of the pre-final version through a pilot study involving 50 individuals; and third, an evaluation of the reliability and validity of the final translated version. we assessed test-retest reliability, content validity, and convergent validity by examining the correlations between the dimensions of the translated sfsq and other relevant measures.results: among 50 patients, 26 were women, and 24 were men. the mean age of the participants was 26.5±5.5 years. test-retest reliability was good, with a cronbach's alpha coefficient of 0.84. both face validity and content validity index (cvi) were deemed acceptable, with a misunderstanding index of 18% (below the 20% significance threshold) and a cvi of 92% (above the 88% significance threshold for all questions).conclusion: the persian version of the sfsq was found to be a reliable and valid tool for data collection in patients with syncope. this instrument represents a significant step toward standardizing syncope-related research.