TNF and migraine disorder: As for serum TNF-α level > 3.97 pg/mL (0–4.60 pg/mL), the sensitivity and specificity in migraine diagnosis were 84.1 and 59.2% respectively; when serum IL-4 level was >4.60 pg/mL, sensitivity and specificity were 76.06 and 72.73%, respectively; when serum IL-4 level was >3.36 pg/mL (0–3.00 pg/mL), the sensitivity and specificity in migraine diagnosis were 59.1 and 73.2%, respectively.