<p>μ<sub>HP</sub> = HP mean; σ<sup>2</sup><sub>HP</sub> = HP variance; μ<sub>QT</sub> = QT mean; σ<sup>2</sup><sub>QT</sub> = QT variance; NMC = non mutation carrier group; ASYMP = asymptomatic group; SYMP = symptomatic group. Results are reported as mean ± standard deviation. The symbol <sup>§</sup> indicates p<0.05 versus NMC individuals. The symbol ° indicates p<0.05 versus ASYMP subjects.</p
