Fig. 3From: Headache prevalence in the population of L’Aquila (Italy) after the 2009 earthquakeTrend of NRS score in the first 48 h after treatment. In columns are represented the number of patient. Data are presented as mean ± SD and percentage; *P < 0.001 versus T0; °P = 0.006 T2h versus T48hBack to article page