Development and assessment of a verbal response scale for the Patient-Specific Functional Scale (PSFS) in a low-literacy, non-western population.
Anupa PathakSaurab SharmaAllen Walter HeinemannPaul W StratfordDaniel Cury RibeiroJ Haxby AbbottPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2020)
Despite a higher preference for verbal scale, 1 out of 3 patients made errors in using the PSFS, even with an interview format. The error rates were higher among participants with low literacy. The findings raise questions about the utility of PROMs in countries with low literacy rates.