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Table 3 Results of secondary outcomes

From: Proportional modes versus pressure support ventilation: a systematic review and meta-analysis

Outcomes No. of trials (PAV/NAVA) Total sample size Summary estimates (95% confidence intervals) Q df I2 (%)
Weaning time from randomization (day) PAV 2 [24, 28]
NAVA 1 [25]
220 WMD − 1.21 (− 4.32, 1.91) 3.66 2 45.3
Switching again to a controlled mode PAV 1 [24]
NAVA 1 [25]
168 RR 1.00 (0.77, 1.31) 0.30 1 0.0
Length of ICU (day) PAV 4 [22,23,24, 28]
NAVA 2 [25, 27]
528 WMD − 1.41 (− 3.90, 1.09) 12.43 5 59.8
Length of hospital stay (day) PAV 3 [23, 24, 28]
NAVA 2 [25, 27]
320 WMD − 0.26 (− 3.90, 3.37) 7.73 4 48.2
Tracheostomy PAV 2 [24, 28] 98 RR 0.65 (0.31, 1.37) 0.09 1 0.0
Reintubation PAV 3 [23, 24, 28] 158 RR 0.39 (0.17, 0.90) 0.39 2 0.0
Use of NIV after extubation PAV 1 [24]
NAVA 1 [25]
178 RR 0.64 (0.47, 0.89) 0.13 1 0.0
  1. RR risk ratio, WMD weighted mean difference, ICU intensive care unit, PAV proportional assisted ventilation, NAVA neurally adjusted ventilatory assist