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Table 2 Anatomical and functional cephalic vein (CV) differences between sexes

From: Sex-related differences regarding cephalic vein lead access for CIEDs implantation

Variable Female Male P < 0.03
Number of leads through CV
0 leads 38% 50% NS
1 lead 50% 44.1% NS
2 leads 11.7% 5.8% NS
CV diameter 3.5 2.9 0.030
Angle of entrance 61.7% 54.4% 0.054
Valves ≤ 1 34.3% 50% 0.531