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Table 2 Prevalence of internal jugular vein valve insufficiency

From: Internal jugular vein valve insufficiency is not increased in migraine: an ultrasound study in migraine patients and control participants

Study groups

Bilateral or unilateral

Bilateral

Left-sided

Right-sided

M n = 70

36 (51%)*

8 (11%)*

17 (24%)*

27 (39%)*

MO n = 44

23 (52%)*

7 (16%)*

13 (30%)*

17 (39%)*

MA n = 26

13 (50%)*

1 (4%)*

4 (15%)*

10 (38%)*

Control group n = 42

17 (40%)*

5 (12%)*

12 (28%)*

10 (24%)*

  1. M, all patients with migraine; MO, patients with migraine without aura;
  2. MA, patients with migraine with aura;
  3. * no difference between the study groups p > 0.05.
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