Document Classification

Section Type: RESULTS

Text: Theophylline therapy resulted in significant decreases in the number of episodes of apnea and hypopnea per hour (18 + / - 17, vs. 37 + / - 23 with placebo and 47 + / - 21 at base line ; P < 0. 001), the number of episodes of central apnea per hour (6 + / - 14, vs. 26 + / - 21 and 26 + / - 20, respectively ; P < 0. 001), and the percentage of total sleep time during which the arterial oxyhemoglobin saturation was less than 90 percent (6 + / - 11 percent, vs., 23 + / - 37 and 14 + / - 14 percent, respectively ; P < 0. 04).