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Table 5 Meta-analysis of trials comparing high-frequency ventilation with conventional ventilation: mortality

From: Invasive ventilation modes in children: a systematic review and meta-analysis

Study Conventional ventilation High-frequency oscillation ventilation Odds ratio (95% confidence interval)
Arnold and colleagues [12] 12/29 10/29 0.75 (0.26 to 2.16)
Dobyns and colleagues [14] 6/38 5/12 0.98 (0.26 to 3.66)
Subtotal Mantel-Haenszel 67 41 0.83 (0.30 to 1.91)
Carman and colleagues (VDR) [16] 5/32 2/32  
Overall Mantel-Haenszel 99 73 0.70 (0.33 to 1.47)
  1. Data presented as number/total. VDR, volume diffusive respirator (high-frequency time-cycled pressure ventilator).