Comparison 2. Ventilator dependency.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Duration of mechanical ventilation	5	1142	Mean Difference (IV, Random, 95% CI)	0.59 [‐1.09, 2.28]
2 Ventilator‐free days	2		Mean Difference (IV, Random, 95% CI)	Totals not selected