Comparison 2. Volume‐cycled ventilation versus pressure‐cycled ventilation.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Mortality at one year (here 3‐month data)	1	16	Risk Ratio (M‐H, Fixed, 95% CI)	1.29 [0.10, 17.14]
2 No improvement of daytime hypercapnia: short‐term	1	20	Risk Ratio (M‐H, Fixed, 95% CI)	1.0 [0.49, 2.05]
3 Daytime PaCO2: short‐term	3		Mean Difference (Fixed, 95% CI)	0.45 [‐0.21, 1.10]
4 Forced vital capacity: short‐term	1		Mean Difference (Fixed, 95% CI)	40.00 [‐7.04, 87.04]
5 Respiratory muscles strength	1		Mean Difference (Fixed, 95% CI)	‐1.97 [‐3.99, 0.04]
5.1 Maximal inspiratory pressure	1		Mean Difference (Fixed, 95% CI)	‐2.2 [‐4.92, 0.52]
5.2 Sniff nasal inspiratory pressure	1		Mean Difference (Fixed, 95% CI)	‐1.7 [‐4.70, 1.30]
6 Mean nocturnal SaO2: short‐term	1		Mean Difference (Fixed, 95% CI)	1.2 [‐0.70, 3.10]
7 Time spent with nocturnal SaO2 below 90%: short‐term	2		Mean Difference (Fixed, 95% CI)	6.83 [4.68, 8.98]
8 Apnoea‐hypopnoea index (/hour): short‐term	2		Mean Difference (Fixed, 95% CI)	‐0.65 [‐0.84, ‐0.46]