While increased YKL-40 indicated higher odds for infection; the results were not statistically significant either on Day1 (OR 2.91; 95% CI: 0.94–10.30; p = 0.075) or on Day 3 (OR 3.46; 95% CI: 1.05–13.68; p = 0.053). Here, CHI3L1 is linked to infection.