RÉSUMÉ
<p><b>OBJECTIVE</b>To analyze the baseline data of outpatient clinical subjects with vertigo and study on the clinical characteristics of vertigo.</p><p><b>METHOD</b>The questionnaires and clinical tests data of 3432 patients complained vertigo were retrospectively analyzed.</p><p><b>RESULTS</b>All the patients received interview and vestibular function test. These patients aged 4-89 years with an average age of (40 +/- 18.6) years. Among them 1513 (44.09%) were male and 1919 (55.91%) were female, with a male:female ratio of 1:1.27. Vertigo patients increased according to age and reached its peak in the 41-60 years among all patients. The incidence might increase along with the increase of education level in urban populations. The onset of vertigo might correlate with the careers but differed among different populations.</p><p><b>CONCLUSIONS</b>Vertigo attacks patients in all age spans, but vertigo is highly prevalent in the population aged 41-60 years. The onset of vertigo is related to many different factors.</p>