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Table 1 Description of the study samples

From: Measurement properties of the Dizziness Handicap Inventory by cross-sectional and longitudinal designs

Characteristics Sample 1 Community based
n = 92
Sample 2 Tertiary referral centre
n = 27
Female: n (%) 64 (70) 16 (59)
Age: mean (SD, min-max) 47.2 (11.46, 26-64) 47.5 (12.1, 24-73)
Duration of dizziness: mean months (SD, min-max) 58.2 (84.1, 2-418) 32 (51.5, 1-234)
Diagnostic groups:   
Vestibular dizziness, n (%) 59 (64) 27 (100)
Non-vestibular dizziness, n (%) 9 (10)  
Unknown origin, n (%) 24 (26)