Correlations between attacks and prodromes
Highly significant correlations were found between the dimensions of prodromes and attacks (i.e. functionality in the abdominal cluster, r= .68, p < 0.001, Fig 3a). In all clusters, except for the extremities, positive and significant correlations were found between the severity of the prodromes and the attacks. It shoulc be noted that in most clusters, as the severity of the prodromes increased, so does the severity of the attacks (Figure 3 a-d).