Skip to main content

Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 2 The results of pooled prevalence of VAE and VAP in included studies

From: Does ventilator-associated event surveillance detect ventilator-associated pneumonia in intensive care units? A systematic review and meta-analysis

  Studies (n) Sample size, (n) Prevalence (%) 95 % Confidence interval (%) Heterogeneity Publication biasa Effect model
I 2 (%) P t value (Egger test) P
VAC
 MV >0 day 17 68747 13.8 9.0, 18.6 99.8 <0.01 1.54 0.15 Random
 MV ≥2 days 13 25935 20.1 9.6, 30.6 99.8 <0.01 0.53 0.60 Random
 MV ≥3 days 5 19408 26.9 5.0, 48.8 99.9 <0.01 0.69 0.54 Random
 MV ≥4 days 4 9349 30.7 −1.5, 62.9 99.9 <0.01 0.05 0.97 Random
 MV ≥5 days 1 3028 77.0 75.5, 78.5 NA NA NA NA NA
IVAC
 MV >0 day 14 55430 6.4 4.8, 8.1 99.0 <0.01 2.15 0.05 Random
 MV ≥2 days 10 21558 9.6 5.8, 13.3 99.1 <0.01 1.22 0.26 Random
 MV ≥3 days 3 15944 14.8 3.9, 25.7 99.7 <0.01 2.60 0.23 Random
 MV ≥4 days 2 5885 20.4 4.0, 36.7 99.6 <0.01 NA NA Random
 MV ≥5 days 1 3028 28.7 27.0, 30.0 NA NA NA NA NA
Possible VAP
 MV >0 day 7 46820 1.1 0.5, 1.7 97.2 <0.01 0.98 0.37 Random
 MV ≥2 days 4 16205 2.5 0.8, 4.1 98.7 <0.01 1.23 0.34 Random
 MV ≥3 days 2 12916 4.5 −0.9, 10.0 99.3 <0.01 NA NA Random
 MV ≥4 days 1 2857 8.5 7.0, 10.0 NA NA NA NA NA
 MV ≥5 days 0 NA NA NA NA NA NA NA NA
Probable VAP
 MV >0 day 8 47524 0.9 0.6, 1.2 91.7 <0.01 1.14 0.30 Random
 MV ≥2 days 5 16642 1.6 0.8, 2.5 94.9 <0.01 1.05 0.37 Random
 MV ≥3 days 2 12916 1.7 1.5, 1.9 0.0 0.378 NA NA Fixed
 MV ≥4 days 1 2557 2.2 2.0, 3.0 NA NA NA NA NA
 MV ≥5 days 0 NA NA NA NA NA NA NA NA
VAP
 MV >0 day 10 17914 11.9 9.4, 14.4 99.5 <0.01 3.64 <0.01 Random
 MV ≥2 days 10 12552 13.7 9.3, 18.1 99.5 <0.01 3.79 <0.01 Random
 MV ≥3 days 2 6341 14.7 −9.2, 38.7 99.9 <0.01 NA NA Random
 MV ≥4 days 2 5885 14.9 −8.6, 38.5 99.9 <0.01 NA NA Random
 MV ≥5 days 1 3028 26.9 25.0, 29.0 NA NA NA NA NA
  1. aEgger’s test was used to estimate publication bias in meta-analyses containing more than two individual studies. VAE ventilator-associated events including ventilator-associated conditions (VAC), infection-related ventilator-associated conditions (IVAC), and possible ventilator-associated pneumonia (VAP), MV mechanical ventilation, NA not available