Changes in sleep and hormonal parameters between the baseline and final follow up evaluation.

Values are means (SD) for normally distributed variables and median (interquartile range, IQR) for skewed variables. t-tests were performed (skewed variables were log transformed before computations). Abbreviations: PSQI = Pittsburgh Sleep Quality Index, ESS = Epworth Sleepiness Scale, UFC = Urinary Free Cortisol. SI conversion factors: To convert cortisol to nmol/L, multiply values by 27.588; to convert dopamine to nmol/d, multiply values by 6.528; to convert epinephrine to nmol/d, multiply values by 5.459; to convert norepinephrine to nmol/d, multiply values by 5.911; to convert free cortisol to nmol/d, multiply values by 2.759; to convert total ghrelin to pmol/L, multiply values by 0.296.