title: Clinical characteristics of positional vertigo after mild head trauma.
abstract: CONCLUSIONS
  This study showed that a population with benign paroxysmal positional vertigo related to mild head trauma (BPPVAT) was younger and more frequently presented with bilateral canalithiasis than another population with idiopathic etiology (IBPPV). In both groups, females presented a higher risk of BPPV.
  
  
  OBJECTIVE
  To compare the clinical features of a population with BPPVAT and another with IBBPV.
  
  
  METHODS
  We carried out statistical analysis of a population of 51 subjects with BPPVAT and another of 325 subjects with IBPPV, comparing age, gender, recurrence of symptoms, associated chronic dizziness (CD), and clinical presentation. Kolmogorov Smirnov test, Student's t test, Mann-Whitney test, 95% binomial confidence interval for proportions, chi-squared, and Fisher's test were used as statistical tools. A significance level of p < 0.05 was considered in all cases.
  
  
  RESULTS
  The population affected with BPPVAT was younger and bilateral canalithiasis was also more frequent. No differences were found in gender distribution, semicircular canals involved in the symptoms, recurrence after repositioning maneuvers, or associated CD.
authors.affiliation: Laboratory of Otoneurology, British Hospital, Montevideo, Uruguay.
authors.forename: Hamlet
authors.initials: H
authors.lastname: Suarez
authors.forename: Rafael
authors.initials: R
authors.lastname: Alonso
authors.forename: Mariana
authors.initials: M
authors.lastname: Arocena
authors.forename: Alejo
authors.initials: A
authors.lastname: Suarez
authors.forename: Dario
authors.initials: D
authors.lastname: Geisinger
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D065635:Benign Paroxysmal Positional Vertigo; D006259:Craniocerebral Trauma / Q000150:complications* / Q000453:epidemiology; D004244:Dizziness / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012189:Retrospective Studies; D012737:Sex Factors; D014583:Uruguay / Q000453:epidemiology; D014717:Vertigo / Q000453:epidemiology / Q000209:etiology / Q000628:therapy; D055815:Young Adult