Variables | Zinc groupa | Placebo groupb | t | df | P-value* |
---|---|---|---|---|---|
Age (year) | 37.40 ± 12.26 | 38.87 ± 13.69 | −0.50 | 78.0 | 0.61 |
Gender (female) (%) | 82.5 | 70.0 | 1.72 | 1 | 0.18 |
Education (university graduated) (%) | 32.5 | 25.0 | 0.54 | 1 | 0.45 |
Weight (kg) | 62.58 ± 12.48 | 66.00 ± 15.14 | −1.10 | 78 | 0.27 |
BMI (kg/m2) | 24.36 ± 4.19 | 25.50 ± 4.91 | − 1.11 | 78 | 0.26 |
Zinc (μg/dL) | 85.41 ± 12.87 | 84.20 ± 11.65 | 0.44 | 78 | 0.66 |
Characteristics of migraine attacks | |||||
 Headache severityc | 7.22 ± 1.14 | 6.80 ± 0.93 | 1.81 | 78 | 0.07 |
 Attacks frequency (per month) | 8.80 ± 6.16 | 9.45 ± 5.39 | −0.50 | 78 | 0.61 |
 Attacks duration (hour) | 17.67 ± 13.59 | 22.85 ± 16.47 | −1.53 | 78 | 0.13 |
 HDRd | 151.67 ± 138.87 | 198.00 ± 138.98 | −1.49 | 78 | 0.14 |