Similarly, VCAM-1 (480 (399, 599) vs. 322 (258.5, 387)) increased in patients with OSA compared to controls (p<0.001 for both), but there was no remarkable difference between mild-OSA (444 (364.5, 538)), moderate-OSA (521 (408.5, 692)) and severe-OSA (480.5 (404, 639.3)) groups (Fig 1C). Here, VCAM1 is linked to obstructive sleep apnea syndrome.