Document Classification

Section Type: RESULTS

Text: However, the corresponding values of Pplat changes at different PEEPe levels in the normal response group [DeltaPplat40 (-0. 020 + / -0. 970) cm H2O, DeltaPplat80 (1. 6 + / -1. 0) cm H2O, DeltaPplat100 (4. 0 + / -2. 9) cm H2O, DeltaPplat120 (6. 4 + / -3. 3) cm H2O] were found to be significantly different compared with those in the perplexing response group [DeltaPplat40 (-7. 500 + / -0. 920) cm H2O, DeltaPplat80 (-4. 4 + / -1. 4) cm H2O, DeltaPplat100 (-3. 8 + / -1. 9) cm H2O, DeltaPplat120 (-1. 6 + / -1. 2) cm H2O] (t = -9. 64, -5. 90, -3. 80, -3. 92 respectively, all P < 0. 01).