title: Association of Benign Paroxysmal Positional Vertigo with Osteoporosis and Vitamin D Deficiency: A Case Controlled Study.
abstract: OBJECTIVE
  Benign paroxysmal positional vertigo (BPPV) is a common type of vertigo caused by the peripheral vestibular system. The majority of cases are accepted as idiopathic. Calcium metabolism also plays a primary role in the synthesis/absorption of otoconia made of calcium carbonate and thus might be an etiological factor in the onset of BPPV. In this study, we aimed to investigate the role of osteoporosis and vitamin D in the etiology of BPPV by comparing BPPV patients with hospital-based controls.
  
  
  METHODS
  This is a case-control study comparing the prevalence of osteoporosis and vitamin D deficiency in 78 BPPV patients and 78 hospital-based controls. The mean T-scores and serum vitamin D levels were compared. The risk factors of osteoporosis, physical activity, diabetes mellitus, body mass index, and blood pressure were all compared between the groups. To avoid selection bias, the groups were stratified as subgroups according to age, sex, and menopausal status.
  
  
  RESULTS
  In this study, the rates of osteoporosis and vitamin D deficiency detected in BPPV patients were reasonably high. But there was no significant difference in mean T-scores and vitamin D levels, osteoporosis, and vitamin D deficiency prevalence between the BPPV group and controls.
  
  
  CONCLUSIONS
  The prevalence of osteoporosis and vitamin D deficiency is reasonably high in the general population. Unlike the general tendencies in the literature, our study suggests that osteoporosis and vitamin D deficiency are not risk factors for BPPV; we conclude that the coexistence of BPPV with osteoporosis and vitamin D deficiency is coincidental.
authors.affiliation: Clinic of Otorhinolaryngology, Haseki Training and Research Hospital, İstanbul, Turkey. akrts2000@yahoo.ca.
authors.forename: Abdullah
authors.initials: A
authors.lastname: Karataş
authors.forename: Gülşah
authors.initials: G
authors.lastname: Acar Yüceant
authors.forename: Turgut
authors.initials: T
authors.lastname: Yüce
authors.forename: Cemal
authors.initials: C
authors.lastname: Hacı
authors.forename: Işıl Taylan
authors.initials: IT
authors.lastname: Cebi
authors.forename: Mehti
authors.initials: M
authors.lastname: Salviz
mesh_terms: D065635:Benign Paroxysmal Positional Vertigo / Q000150:complications*; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000175:diagnosis*; D015995:Prevalence; D014807:Vitamin D / Q000097:blood; D014808:Vitamin D Deficiency / Q000175:diagnosis*
chemical_list: D014807:Vitamin D