Low-Volume Brachial Plexus Block Providing Surgical Anesthesia for Distal Arm Surgery Comparing Supraclavicular, Infraclavicular, and Axillary Approach: A Randomized Observer Blind Trial

Table 1

Baseline demographics.

	AX	IC	SC
Height [cm]	168 [13]	175 [16]	172.5 [13]
Weight [kg]	67 [20]	72 [20]	75 [24]
BMI [kg/m^2]	23.9 [5.3]	22.9 [4.2]	25.1 [8.8]
Age [years]	60 [35]	52 [38]	59 [26]
ASA I-II/III-IV [n/n]	19/21	21/19	13/27

Values are reported as median [IQR] or numbers [n/n]. AX, axillary; IC, lateral infraclavicular; SC, supraclavicular; BMI, body mass index; ASA, American Society of Anesthesiology physical classification. Anderson-Darling normality test performed on all continuous data, suggesting non-Gaussian distributions.