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

Table 3

Vitamin D status in different subgroups in both cases and controls.

Item	Mean of serum vitamin D ± SD (control)	𝑃 value; (within case groups)	Mean of serum vitamin D ± SD (case)	𝑃 value; (within control groups)	𝑃 value; (between case and control groups)
Sex
Female	11.84±1.34	0.019	12.52±1.13	0.046	0.702
Male	18.91±2.19		16.82±1.15		0.381
Residency
Rural	14.97±2.04	0.159	15.12±1.19	0.084	0.949
Urban	11.60±1.30		11.94±1.37		0.857
Level of education
Below high school diploma	13.00±1.68	0.895	13.08±1.26	0.672	0.967
Above high school diploma	13.32±1.64		13.88±1.29		0.793
Duration of sun exposure
0–120 min/day	10.67±0.81	0.000	12.20±1.01	0.004	0.238
≥120 min/day	24.53±4.74		18.60±1.81		0.234
Group age
≤25	13.21±1.88	0.993	12.21±1.95	0.457	0.722
>25	13.18±1.49		13.90±1.04		0.693
≤50	12.85±1.21	0.307	13.24±0.95	0.243	0.803
>50	17.56±5.56		17.30±3.26		0.968

The Mann-Whitney test was used to compare mean of vitamin D in different groups.