Document Classification

Section Type: RESULTS

Text: We found the following : (1) a similar effective pressure eliminated inspiratory flow limitation for the nasal or oral CPAP ; (2) as pressure in the nose or mouth was lowered below the effective pressure, a linear pressure-flow curve was obtained and a critical closing pressure was described ; (3) similar mean (+ / - SD) critical pressures of -0. 3 + / - 5. 3, 1. 7 + / - 4. 0, and 0. 5 + / - 2. 8 cm H (2) O, respectively, occurred for nasal CPAP, nasal CPAP with the oral device in place, and oral CPAP conditions (p > 0. 1) ; and (4) the comparable mean values for upstream resistance were 27. 8 + / - 19, 19. 1 + / - 8. 3, and 26. 5 + / - 26. 7 cm H (2) O/L/s, respectively, for the above three conditions (p > 0. 1).