Table 2.

Outcome measures by treatment group at each follow-up evaluation^a,b

	1-week			1-month			1-year
	Sham, n= 65	Interv, n= 62	P-value	Sham, n= 59	Interv, n= 58	P-value	Sham, n= 54	Interv, n= 59	P-value
Not interviewed, n (%)	3 (4.41)	4 (6.06)	0.716	9 (13.24)	8 (12.12)	1.000	14 (20.59)	7 (10.61)	0.154
Self-reported resolution of baseline vertigo ‘Yes’, n (%)	19 (29.69)	23 (37.10)	0.451	34 (57.63)	36 (64.29)	0.567	41 (75.93)	47 (87.04)	0.215
Positive DHT, n (%)	28 (43.08)	22 (36.67)	0.584	20 (34.48)	15 (25.86)	0.419	8 (14.81)	10 (17.86)	0.798
Positive DHT with nystagmus, n (%)	14 (21.54)	4 (6.67)	0.022	10 (16.95)	4 (6.78)	0.153	3 (5.66)	5 (10.00)	0.480
Self-reported vertigo severity (Likert scale)	5.00 (2.00–6.00)	3.00 (1.00–5.00)	0.086	2.00 (0.50–4.50)	1.00 (0.00–3.00)	0.100	0.00 (0.00–2.00)	0.00 (0.00–1.00)	0.703

^aResults are shown as absolute figures and percentages for qualitative variables, and as median and interquartile range for quantitative variables.

^bPositive DHT is vertigo and nystagmus. Global positive DHT is vertigo and nystagmus, or vertigo only. DHT = Dix–Hallpike test. Interv = intervention.