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Table 2 Outcomes between groups

From: Noninvasive ventilation for avoidance of reintubation in patients with various cough strength

  Cough peak flow ≤70 L/minute Cough peak flow >70 L/minute  
NIV (n = 108) Control (n = 72) p Valuea NIV (n = 71) Control (n = 105) p Valuea p Valueb
Duration of ICU stay, days 13 (10–20) 15 (9–26) 0.34 12 (8–18) 9 (5–12) <0.01c <0.01c
Duration of hospital stay, days 23 (14–37) 26 (15–48) 0.16 19 (12–28) 17 (12–26) 0.40 <0.01c
Duration of postextubation ICU stay, days 6 (4–11) 7 (3–18) 0.52 5 (3–9) 3 (1–6) <0.01c <0.01c
Duration of postextubation hospital stay, days 13 (7–23) 14 (6–26) 0.78 10 (7–17) 10 (6–16) 0.54 <0.01c
Reintubation at 72 h postextubation 10 (9 %) 25 (35 %) <0.01c 4 (6 %) 6 (6 %) >0.99 <0.01c
Reintubation at 7 days postextubation 26 (24 %) 35 (49 %) <0.01c 6 (9 %) 9 (9 %) >0.99 <0.01c
Hospital mortality 36 (33 %) 33 (46 %) 0.12 8 (11 %) 14 (13 %) 0.82 <0.01c
Postextubation 90-day mortality 46 (43 %) 44 (61 %) 0.02c 15 (21 %) 16 (15 %) 0.32 <0.01c
  1. ICU Intensive care unit, NIV Noninvasive ventilation
  2. aDifference between NIV and control
  3. bDifference between weak and strong cough
  4. c p < 0.05