Fig. 5.

Ventilatory modes used during the first week after the onset of ARDS in patients in university and non-university hospitals. Pressure support ventilation was used both more often and earlier in university hospitals than in non-university hospitals (see Table 6 for p values). A/C (VC-CMV) denotes assist/control (volume-controlled continuous mechanical ventilation), PCV (PC-CMV) pressure-controlled ventilation (pressure-controlled continuous mechanical ventilation), BIPAP/APRV biphasic positive airway pressure/airway pressure release ventilation, PSV pressure-support ventilation, SIMV synchronized intermittent mandatory ventilation, NIV non-invasive ventilation