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Table 4 Publication bias

From: Is high-frequency oscillatory ventilation more effective and safer than conventional protective ventilation in adult acute respiratory distress syndrome patients? A meta-analysis of randomized controlled trials

Type of meta-analysis

Begg’s test

Egger’s test

 
 

z

Pr > |z|

t

P > |t|

Mortality at 28 or 30 days

0.000

1.000

−0.230

0.833

ICU mortality

0.520

0.602

0.250

0.841

Oxygenation failure

1.57

0.117

2.39

0.252

Ventilation failure

−0.52

0.602

−0.73

0.597

Duration of mechanical ventilation

1.04

0.296

1.49

0.376

Barotrauma

−0.68

0.497

−2.67

0.116

Hypotension

−0.52

0.602

−0.62

0.646