Table 1.

Demographic details of the study sample. Mean age (standard deviation, ranges); number of males (m) and females (f); mean time (years) that UW and BPPV patients reported having illness or length of time post-operatively for AN patients (standard deviation, ranges). N, number of subjects.

	Age (yrs)	Sex	Length of illness
Controls (N=156)	52.8 (18.0, 23.3–89.5)	80 m, 76 f
AN (N=18)	55.2 (10.8, 35.2–72.9)	6 m, 12 f	5.5 (5.8, 0.27 to 27)
BPPV (N=21)	58.8 (11.7, 34.7–78.8)	10 m, 11 f	0.28 (0.45, 0.03 to 1.63)
UW (N=51)	55.1 (15.6, 21.4 – 75.5)	19 m, 32 f	4.0 (9.0, 0.07 to 40)