Comparison 11. Subgroup analysis: < 70 years versus ≥ 70 years for the comparison of high‐dose dexamethasone (12 mg or higher) versus low‐dose dexamethasone (6 mg to 8mg) for hospitalised individuals with a confirmed diagnosis of symptomatic COVID‐19.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
11.1 All‐cause mortality up to 30 days	2	1069	Risk Ratio (M‐H, Random, 95% CI)	0.87 [0.73, 1.04]
11.1.1 <70 years	2	707	Risk Ratio (M‐H, Random, 95% CI)	0.82 [0.63, 1.07]
11.1.2 ≥ 70 years	2	362	Risk Ratio (M‐H, Random, 95% CI)	0.91 [0.73, 1.15]
11.2 All‐cause mortality up to 120 days	2	1066	Risk Ratio (M‐H, Random, 95% CI)	0.88 [0.76, 1.03]
11.2.1 <70 years	2	706	Risk Ratio (M‐H, Random, 95% CI)	0.80 [0.63, 1.02]
11.2.2 ≥ 70 years	2	360	Risk Ratio (M‐H, Random, 95% CI)	0.94 [0.78, 1.14]