<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; DAY = daytime; NIGHT = nighttime; ASYMP = asymptomatic group; SYMP = symptomatic group. Results are reported as mean ± standard deviation. The symbol * indicates p<0.05 within the same group (i.e. ASYMP or SYMP) versus DAY. The symbol <sup>#</sup> indicates p<0.05 within the same period of analysis (i.e. DAY or NIGHT) versus ASYMP subjects.</p
