Comparison 6. Lower versus higher blood oxygen levels (<28 weeks GA) in later neonatal period.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 ROP Stage 3 or 4	1	256	Risk Ratio (M‐H, Fixed, 95% CI)	1.42 [0.85, 2.36]
2 Blindness	1	240	Risk Ratio (M‐H, Fixed, 95% CI)	4.14 [0.47, 36.46]