Figure 6

Correlations between EDSS and EP scores in the last 6 years literature. The correlations between EDSS and EP scores reflect the researchers’ choice of patients selection criteria. 1: Kallmann et al. 2006 [2] group 1, F_EDSS =2.0, range (0–4). 2: Jung et al. 2008 [4] F_EDSS = 1.5, range(0–3). 3: this study, F_EDSS = 1.5, range(0–3). 4: Leocani et al. 2006 [3], F_EDSS = 3.5, range (1–8). 5: Invernizzi et al. 2011 [5], F_EDSS = 3.0, range(0–6.5). 6: Kallmann et al. 2006 [2] group 2, F_EDSS =3.5, range(0–7).F_EDSS= first EDSS assessment.