Patient Complications after Interscalene Block: A Retrospective Comparison of Liposomal Bupivacaine to Nonliposomal Bupivacaine

Table 4

Firth’s logistic regression for primary and secondary outcomes with number experiencing the outcome with % within group and value for comparison of two groups.

Outcome	LB N (%) with outcome	Non-LB N (%) with outcome	aOR (95% CI) (non LB = 1)	value
Surgical or anesthetic complication	25 (3.2%)	22 (3.0%)	0.95 (0.53, 1.70)	0.873
Readmission	19 (2.4%)	21 (2.9%)	1.31 (0.70, 2.46)	0.403
ER pain within 3 days	8 (1.0%)	11 (1.5%)	1.38 (0.56, 3.49)	0.482
ER within 30 days	42 (5.4%)	55 (7.5%)	1.47 (0.97, 2.24)	0.068
ER pain within 30 days	11 (1.4%)	11 (1.5%)	1.05 (0.45, 2.43)	0.907
Call pain within 3 days	25 (3.2%)	41 (5.6%)	1.71 (1.04, 2.87)	0.036
Call within 30 days	257 (32.8%)	240 (32.7%)	1.01 (0.81, 1.25)	0.919
Call pain within 30 days	155 (19.8%)	143 (19.5%)	1.00 (0.77, 1.29)	0.983

LB: liposomal bupivacaine, non-LB: nonliposomal bupivacaine, ER: emergency room, and aOR: adjusted odds ratio.