Document Classification

Section Type: RESULTS

Text: In contrast, continuous positive airway pressure markedly reduced obstructive sleep apnea, reduced the daytime systolic blood pressure from a mean (+ / - SE) of 126 + / -6 mm Hg to 116 + / -5 mm Hg (P = 0. 02), reduced the heart rate from 68 + / -3 to 64 + / -3 beats per minute (P = 0. 007), reduced the left ventricular end-systolic dimension from 54. 5 + / -1. 8 to 51. 7 + / -1. 2 mm (P = 0. 009), and improved the left ventricular ejection fraction from 25. 0 + / -2. 8 to 33. 8 + / -2. 4 percent (P < 0. 001).