Translation and Validation of “Brief Bedside Dysphagia Screening Test” in a Greek Sample of Neurological Patients
2020
Background. Dysphagia may be a threatening condition if not diagnosed and treated early.
Healthcare professionals need simple, quick and reliable tools for their daily clinical practice
to be able to evaluate it immediately. The purpose of the present study was the translation
and validation of the tool Brief Bedside Dysphagia Screening Test-Revised (BBDST-R) in
Greek language in a sample of patients with neurological disorders. Methods. A crosssectional study was conducted with a convenience sample of 80 patients. The BBDST-R tool
has 8 items. Positive response to one item means that the patient may have dysphagia. The
researcher who conducted the bedside assessment using the tool had previously been
trained in its use. The translation and validation were carried out following international
standards. The researcher’s final assessment concerning the presence or absence of
dysphagia was compared to the medical diagnosis, which was the golden standard. For the
evaluation of BBDST-R, research was conducted on its diagnostic accuracy according to
guidelines for measures of diagnostic accuracy. Internal consistency was measured with
Cronbach's Alpha. Results. The English version of the BBDST-R tool has been reliably
translated in Greek language. The prevalence of dysphagia in our sample was 62.5% (95% CI
50-72%). The observed high sensitivity [Sen = 98% / 87-99% (95% CI)] and high negative
predictive value [NPV = 89% / 77-95% (95% CI)] indicated high validity of the screening tool
at acceptable levels > 75% even for CI 95%. Cronbach's Alpha internal consistency index for
its 8 items, presents an almost excellent value of a = 0.859. Conclusions. This study indicates
that BBDST-R is a reliable and valid tool that can be used to assess dysphagia in the Greek
population.
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