a strong trendP = 0.052
Likewise, the mean number of monthly days with peak headache intensity of more than 4 in a 1–10 numerical scale (moderate / severe pain) was also changed between T1 and T3 with a strong trend to significance towards further reduction (3.4 ± 2.8– range: 0–14 vs 2.5 ± 1.1 – range: 1–5; P = 0.052).