Comparison 19. Duration of motor block: perineural versus intravenous dexamethasone.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Duration of motor block	5	421	Mean Difference (IV, Random, 95% CI)	3.13 [0.99, 5.27]
2 Duration of motor block: additive versus no additive subgroups	5	340	Mean Difference (IV, Random, 95% CI)	2.75 [0.32, 5.19]
2.1 Additive	1	50	Mean Difference (IV, Random, 95% CI)	4.0 [‐0.03, 8.03]
2.2 No additive	4	290	Mean Difference (IV, Random, 95% CI)	2.39 [‐0.58, 5.37]
3 Duration of motor block: high‐ versus low‐dose dexamethasone subgroups	5	421	Mean Difference (IV, Random, 95% CI)	3.13 [0.99, 5.27]
3.1 High‐dose dexamethasone	4	381	Mean Difference (IV, Random, 95% CI)	2.47 [‐0.25, 5.19]
3.2 Low‐dose dexamethasone	1	40	Mean Difference (IV, Random, 95% CI)	5.0 [2.53, 7.47]
4 Duration of motor block: high/unclear versus low risk of bias subgroups	5	421	Mean Difference (IV, Random, 95% CI)	3.13 [0.99, 5.27]
4.1 HIgh/unclear risk of bias	1	40	Mean Difference (IV, Random, 95% CI)	5.0 [2.53, 7.47]
4.2 Low risk of bias	4	381	Mean Difference (IV, Random, 95% CI)	2.47 [‐0.25, 5.19]