Absolute and relative changes in R₂* of individual FA patients after a 6-month treatment with DFP. The boxes represent the change in R₂* constants (s⁻¹) attained between 0 and 6 months of treatment with DFP (values taken from Figure 2), with the thick line representing the value at the end of treatment. The dotted lines represent the respective mean R2* values of 18.3 ± 1.6 s⁻¹ and 15.7 ± 0.7 s⁻¹ obtained at 0 and 6 months, respectively. The mean R2* values and the individual R2* values for each patient at 0 and 6 months were significantly different (P < .002; Anova test). The inset depicts the percentage decrease in R2* (calculated as [R₂* {month 0} − R₂* {month 6}]/[R₂* {month 0}] ×100) versus the initial R2* (month-0 treatment) that yielded by linear regression analysis a slope of 4.2 ± 0.90 (r = 0.87, n = 9, P < .003).