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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Otolaryngol Head Neck Surg. 2012 Dec 21;148(3):425–430. doi: 10.1177/0194599812471633

Table 1.

Patient demographics and clinical characteristics

N, %, unless otherwise
specified
N = 3,522
Age, years, median, IQR a 52.2 (37.0 to 66.6)
Female a 2,064 (64.8%)
Ethnicity a
     Mexican American 2,130 (66.9%)
     Non-Hispanic White 849 (26.7%)
     Other 205 (6.4%)
Dizziness Symptom
     Dizziness NOS, any 3,223 (91.5%)
     Vertigo 1,441 (40.9%)
     Imbalance 882 (25.0%)
     More than one 2,340 (66.4%)
Episodic symptoms documented 1,484 (42.1%)
Diagnosis
     Dizziness or Vertigo NOS, any 2,879 (81.7%)
     Peripheral vestibular, any 491 (13.9%)
     BPPV, any 156 (4.4%)
Number of diagnoses b
     0 3 (0.1%)
     1 1,052 (29.9%)
     2 1,361 (38.6%)
     3 693 (19.7%)
     4 290 (8.2%)
     5 123 (3.5%)

IQR, interquartile range; NOS, not otherwise specified

a

Summary statistics for demographic information were calculated using only data from initial visits (i.e, the 338 repeat visits were excluded).

b

Median number of diagnoses, 2 (IQR, 1 to 3)