Table 1.—

Differences Between Features of VM and Migraine Without Vestibular Symptoms

	VM Group # of Patients (% of Patients Who Answered)				Migraine Group # of Patients (% of Patients Who Answered)			P Value* = Significance
Total number of patients	103				66
Gender
Female	81 (79%)				58 (88%)			0.184
Male	22 (21%)				8 (12%)
Age of onset of headache
Average	28 ± 12 years old				17 ± 9 years old			<0.001*
≤20 years old	37 (43%)				47 (81%)			<0.001*
>20 years old	50 (57%)				11 (19%)
Age of onset of vestibular symptoms
Average	32 ± 12 years old				N/A			N/A
Location of headache
Only occipital	24 (23%)		45 (44%)		3 (4%)		12 (18%)	0.032*
Occipital + other	21 (20%)				9 (14%)
Not occipital	58 (56%)				54 (82%)			0.001*
Motion sickness since childhood
Yes	41 (42%)				1 (2%)			0.001*
No	57 (58%)				63 (98%)
Family history of headache
Yes	52 (51%)				37 (56%)			0.599
No	49 (49%)				28 (42%)
Family history of motion sickness
Yes	30 (30%)				2 (3%)			0.001*
No	69 (70%)				62 (97%)
Frequency of headache
≥1/day	18 (20%)				13 (24%)			0.831
<1/day to ≥ 1/week	33 (38%)				23 (43%)
<1/week to ≥ 1/ month	24 (27%)				12 (22%)
<1/month	13 (15%)				6 (11%)
Photophobia
Yes	90 (87%)				62 (94%)			0.262
No/not reported	13 (13%)				4 (6%)
Visual perturbations other than photophobia
Yes	10 (10%)				2 (3%)			0.179
No/not reported	93 (90%)				64 (97%)
Phonophobia
Yes	80 (78%)				59 (89%)			0.089
No/not reported	23 (22%)				7 (11%)
Aura
Yes	2 (2%)				15 (23%)			0.001*
No/not reported	101 (98%)				51 (77%)
Nausea
Yes	69 (67%)				53 (80%)			0.088
No/not reported	34 (33%)				13 (20%)
Vomiting
Yes	25 (24%)				27 (41%)			0.034*
No/not reported	78 (75%)				39 (59%)

^*Indicates P < .05.