Table 4 Patient’s tolerance at each time point during NIV treatment.

From: Noninvasive ventilation with a helmet in patients with acute respiratory failure caused by chest trauma: a randomized controlled trial

 

NIV 1 h

NIV 4 h

End of NIV

Helmet (n = 29)

Face mask (n = 30)

Helmet (n = 29)

Face mask (n = 30)

Helmet (n = 29)

Face mask (n = 30)

Excellent

26 (90%)

21 (70%)

24 (83%)

14 (47%)a

20 (69%)

9 (30%)a

Good

3 (10%)

9 (30%)

3 (10%)

12 (40%)

6 (21%)

10 (33%)

Moderate

0 (0%)

0 (0%)

2 (7%)

4 (13%)

3 (10%)

10 (33%)

Bad

0 (0%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

1 (4%)

  1. aThe proportions of excellent tolerance at 4 h (P = 0.004) or the end of NIV treatment, (P = 0.03) were statistically significant between groups.
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