Fig. 2From: Basal cutaneous pain threshold in headache patientsMean ± SD of CPT reduction in MOH group, taking into account DDI divided in three subgroups. Group A (11): DDI ≤ 1; group B (10): DDI > 1, ≤ 2; group C (23): DDI > 2; (Bonferroni t test; *p < 0.05 vs. B and C). In brackets number of casesBack to article page