Table 2 Values of end expiratory pressure (PEEP), peak pressure (PIP), inflation time (Ti) and inflation rate during NIPPV in 44 units
PEEPPIPTiInflation rate
Value(cm H2O)No of units (%)Value(cm H2O)No of units (%)Value (s)No of units (%)Value/minNo of units (%)
48 (18)71 (2)0.3‡26 (59)11–2011 (25)
5‡16 (36)84 (9)0.49 (21)21–30‡15 (34)
615 (34)97 (16)0.55 (11)31–409 (21)
71 (2)10‡11 (25)41–502 (5)
81 (2)12–1412 (27)51–602 (5)
91 (2)15–164 (9)All breaths*2 (5)
202 (5)
Data missing†3 (7)Data missing†3 (7)Data missing†4 (9)Data missing†3 (7)
  • *Assist control mode, all spontaneous breaths supported.

  • †Includes two respondents who did not give specific values, simply stating that values “varied”.

  • ‡Denotes median value.