Comparison 1. Adjunctive steroid versus control.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 All‐cause death until hospital discharge	2	132	Risk Difference (M‐H, Fixed, 95% CI)	‐0.19 [‐0.33, ‐0.04]
2 Developmental delay	1	38	Risk Ratio (M‐H, Fixed, 95% CI)	0.77 [0.32, 1.87]
3 Hearing loss at 4 to 10 weeks after discharge	1	59	Risk Difference (M‐H, Fixed, 95% CI)	‐0.25 [‐0.48, ‐0.01]
4 Hearing loss at 2 years of age	1	38	Risk Difference (M‐H, Fixed, 95% CI)	0.04 [‐0.12, 0.21]
5 Seizures at any time	1	52	Risk Ratio (M‐H, Fixed, 95% CI)	1.85 [0.18, 19.19]
6 Seizures persisting after 5 days of treatment	1	52	Risk Ratio (M‐H, Fixed, 95% CI)	1.85 [0.18, 19.19]
7 Hydrocephalus	1	52	Risk Ratio (M‐H, Fixed, 95% CI)	0.93 [0.06, 14.03]