Table 4. Effect of QLB on MME during and after surgery.

* Based on linear models adjusting for age, gender, diabetes, hypertension comorbidities, ASA status, anesthesia team, anesthesia method, surgical duration and hospital site.

QLB: Quadratus lumborum block; MME: Morphine milligram equivalent; ASA: American Society of Anesthesiology

Table 4: Effect of QLB on MME during and after surgery
Period	QL block	Variables	*Logarithmic scale of MME Difference	Standard Error	p-value	Overall p-value
Intraoperative	Overall	Yes	-0.63	0.30	0.033	0.033
		No	(ref)
	Block timing	After surgery	-1.02	0.50	0.042	0.065
		Before incision	-0.54	0.31	0.079
		Not done	(ref)
Postoperative	Overall	Yes	-0.27	0.38	0.480	0.480
		No	(ref)
	Block timing	After surgery	-0.85	0.64	0.184	0.411
		Before incision	-0.14	0.39	0.727
		Not done	(ref)