Comparison 1. Gradual versus abrupt oxygen weaning (all preterm/LBW infants).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 RLF vascular (any)	1	51	Risk Ratio (M‐H, Fixed, 95% CI)	0.22 [0.07, 0.68]
2 RLF vascular (severe)	1	49	Risk Ratio (M‐H, Fixed, 95% CI)	0.21 [0.03, 1.66]