Comparison 2. Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by gestational age).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Death or major disability by 18 to 24 months corrected age (trialist defined)	1		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
1.1 < 26 weeks	1	537	Risk Ratio (M‐H, Fixed, 95% CI)	1.09 [0.89, 1.32]
1.2 ≥ 26 weeks	1	697	Risk Ratio (M‐H, Fixed, 95% CI)	1.17 [0.86, 1.60]