Comparison 24. Postoperative opioid consumption at 24 hours: perineural versus intravenous dexamethasone opioid consumption: perineural versus intravenous dexamethasone subgroups.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Opioid consumption at 24 hours: perineural versus intravenous dexamethasone	4	242	Mean Difference (IV, Random, 95% CI)	‐3.87 [‐9.93, 2.19]
2 24‐hour opioid consumption: additive versus no additive subgroups	4	242	Mean Difference (IV, Random, 95% CI)	‐3.87 [‐9.93, 2.19]
2.1 Additive	1	53	Mean Difference (IV, Random, 95% CI)	‐10.00 [‐23.96, ‐0.04]
2.2 No additive	3	189	Mean Difference (IV, Random, 95% CI)	‐1.56 [‐6.34, 3.22]