Lastly, elevation in IL-1RI (OR: 1.5267, 95% CI: 1.0413-2.2384, PIVW: 0.0302), IL-2 receptor α (OR: 2.3403, 95% CI: 1.0433-5.2501, PIVW: 0.0391), PECAM-1 (OR: 3.4468, 95% CI: 1.2142-9.7847, PIVW: 0.0201), Tie-2 (OR: 2.2153, 95% CI: 1.1819-4.1523, PIVW: 0.0131), and SP-D (OR: 2.3065, 95% CI: 1.1169-4.7628, PIVW: 0.0239) was associated with an increased risk of giant cell arteritis. Here, PECAM1 is linked to arteritis.