Canalith repositioning maneuver for benign paroxysmal positional vertigo: Randomized controlled trial in family practice

Juan E. Munoz; Jonel T. Miklea; Michelle Howard; Russ Springate; Janusz Kaczorowski

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Figure 1
Flow of participants through the trial

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Table 1

Characteristics of patients in the CRM and sham groups at baseline: Mean age of patients was 54.9 (17.5) years in the CRM group and 54.1 (15.3) years in the sham group; mean years since onset was 6.2 (5.9) in the CRM group and 6.0 (7.1) in the sham group.

CHARACTERISTIC	CRM GROUP (N=38)^* % (n/N)	SHAM GROUP (N=41)^* % (n/N)
Female	81.6 (31/38)	61.0 (25/41)
First episode	52.6 (20/38)	40.0 (16/40)
Dizziness interferes with life a great deal	29.7 (11/37)	35.0 (14/40)
Fair or poor self- reported health	28.9 (11/38)	10.0 (4/40)

CRM—canalith repositioning maneuver.
↵* Divisors vary because of missing information.

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Table 2

Proportions of patients in the CRM group and the sham group who had negative DH test results or self-reported resolution of dizziness after treatments

RESULTS	CRM GROUP% (n/N)	SHAM GROUP% (n/N)	P VALUE
TREATMENT 1
DH test result negative	34.2 (13/38)	14.6 (6/41)	.04
Dizziness resolved	31.6 (12/38)	24.4 (10/41)	.48
Either resolved	52.6 (20/38)	36.6 (15/41)	.18
TREATMENT 2 (both groups received CRM)
DH test result negative	61.8 (21/34)	57.1 (20/35)	.81
Dizziness resolved	40.0 (14/35)	41.2 (14/34)	.92
Either resolved	73.5 (25/34)	65.7 (23/35)	.48
TREATMENT 3 (both groups received CRM)
DH test result negative	75.0 (21/28)	66.7 (20/30)	.55
Dizziness resolved	66.7 (20/30)	67.7 (21/31)	.93
Either resolved	75.9 (22/29)	76.7 (23/30)	.94