Figure 2.

(A) Twenty-four-hour urinary norepinephrine levels in normal-weight male OSA patients with and without hypertension. (B) Twenty-four-hour urinary norepinephrine levels in overweight/obese male OSA patients with and without hypertension.

Notes: Error bars indicate standard error. Overweight/obesity was defined as a body mass index ≥25 kg/m². HT=hypertension; OSA=obstructive sleep apnea. All data were adjusted for age, minimum oxygen saturation, percentage of non-rapid eye movement sleep stage 2, and total scores of Epworth Sleepiness Scale.