Table 1.

Comparison of measurements between men and women

Distance (mm)	Males	Females	p-value
Base width of the scalene triangle	10.1 ± 4.2	6.2 ± 4.2	< 0.01
Width of the anterior scalene muscle insertion	17.8 ± 3.0	16.5 ± 2.7	0.051
Clavicle length	158.3 ± 7.9	141.8 ± 10.0	< 0.01

Values are presented as mean ± standard deviation. Statistical analysis was performed using an unpaired t-test.