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Table 2 Size of IJV in relation to CCA

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

  Right side
n = 100
Left side
n = 100
Total
n = 200
n % CI n % CI n % CI
Collapsed 20 20 (12.1–27.8) 18 18 (10.4–25.5) 38 19 (31.2–44.7)
< 50% 7 7 (1.9–12.0) 10 10 (4.1–15.8) 17 8.5 (11.7–22.2)
50–100% 28 28 (19.1–36.8) 27 27 (18.2–35.7) 55 27.5 (48.1–61.8)
101–150% 11 11 (4.8–17.1) 5 5 (0.7–9.2) 16 8 (10.9–21.0)
151–200% 12 12 (5.6–18.3) 10 10 (4.1–15.8) 22 11 (16.2–27.7)
> 200% 22 22 (13.8–30.1) 30 30 (21.0–38.9) 52 26 (45.0–58.9)
Total 100 100   100 100   200 100  
  1. IJV internal jugular vein, CCA common carotid artery, CI confidence interval