Study limitations and strengths
The main limitations of this study arise from its retrospective
character and the associated bias. Additionally, patient notes extracted
were not randomised, and as such our results may not be entirely
representative of the BPPV population.
Additionally, we did not include further factors that could play a role,
such as vitamin D levels, which have been shown to play a role in
recurrences and their severity.
On the other hand, the present study is powered and the only study
looking into the impact of socioeconomic factors on BPPV, shedding some
light on the commonest peripheral cause of dizziness.