Vitamin D Status in Migraine Patients: A Case-Control Study

Table 2

Prevalence of different features of migraine in patients and vitamin D status as sufficient level (more than 20 ng/mL) and deficient level (less than 10 ng/mL) in each category.

Item (Case)	Vitamin D level (ng/mL)		𝑃 value
	Less than 10	More than 20
Frequency of headache per month
≤15	41 (78.8%)	17 (81.0%)	0.840
>15	11 (21.2%)	4 (19.0%)
Nausea
Yes	40 (76.9%)	14 (66.7%)	0.366
No	12 (23.1%)	7 (33.3%)
Family history
Positive	38 (73.1%)	14 (66.7%)	0.584
Negative	14 (26.9%)	7 (33.3%)
Menstrual effect
Yes	22 (45.8%)	11 (73.3%)	0.063
No	26 (54.2%)	4 (26.7%)
Intensity of pain
Mild	0 (0.0%)	0 (0.0%)	0.109
Moderate	13 (25.0%)	5 (23.8%)
Intense	26 (50.0%)	15 (71.4%)
Very Intense	13 (25.0%)	1 (4.8%)
Level of nausea
None	12 (23.1%)	7 (33.3%)	0.148
Mild	25 (48.1%)	4 (19.0%)
Intense	8 (15.4%)	5 (23.8%)
Vomiting	7 (13.5%)	5 (23.8%)
Level of disability
None	5 (9.6%)	2 (9.5%)	0.395
Mild	24 (46.2%)	10 (47.6%)
Marked	10 (19.2%)	1 (4.8%)
Confined to bed	13 (25.0%)	8 (38.1%)
Level of tolerability
Tolerable	11 (21.2%)	4 (19.0%)	0.946
Barely tolerable	28 (53.8%)	11 (52.4%)
Intolerable	13 (25.0%)	6 (28.6%)
MIGSEV total
Low	6 (11.6%)	4 (19.0%)	0.686
Intermediate	23 (44.2%)	8 (38.1%)
High	23 (44.2%)	9 (42.9%)
Duration of headache
4–12 h	24 (46.2%)	12 (57.1%)	0.695
12–24 h	16 (30.8%)	5 (23.8%)
24–72 h	12 (23.1%)	4 (19.0%)