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Table 3 Probability of reaching IJV in relation to the relative size of IJV to CCA

From: Point-of-care ultrasound evaluation and puncture simulation of the internal jugular vein by medical students

  Yes No
n % n %
Collapsed 15 12 23 30.67
< 50% 10 8 7 7
50–100% 29 23.2 26 26
101–150% 13 10.4 3 4
151–200% 16 12.8 6 6
> 200% 42 33.6 10 10
Total 125 100 75 100
  1. IJV internal jugular vein, CCA common carotid artery
  2. Chi square = 21.723, p = 0.001