Table 1.

Patient Characteristics^a.

	Liposomal Bupivacaine Group (N = 33)	Control Group (N = 26)	P
Male: female	21:12	9:17	.652
Age	59.8 (12.22)	63.1 (10.6)	.271
BMI	29.9 (6.38)	30.5 (6.3)	.736
CCI scores	3.0 (0.39)	2.5 (0.37)	.29
Length of stay (days)	3.9 (1.62)	3.9 (1.46)	.92
Number of vertebrae fused	2.7 (1.0)	2.4 (0.50)	.093
Number of vertebrae decompressed	3.1 (1.0)	3.7 (0.91)	.036
EBL (mL)	428.9 (337.7)	450.9 (262.5)	.780
Operation length (minutes)	147.4 (54.3)	168.7 (56.2)	.161

Abbreviations: BMI, body mass index; CCI, Charlson comorbidity index²⁰; EBL, estimated blood loss.

^aValues presented as means (SDs).