Table 3—

Mean (sd) ventilator tI, with varying duration of “patient effort” (PE)

VentilatorPE=0.25 secondsPE=1 second
BiPAP ST 301.79 (0.15) s0.96 (0.06) s
Nippy21.93 (0.04) s1.93 (0.03) s
Quantum PSV0.58 (0.07) s0.72 (0.03) s
VPAP II ST1 (0.06) s1.08 (0.06) s