On the second postoperative day, CRP greater than 30 mg/l (OR = 8.27; 95% CI: 1.05-64.79; p = 0.03) in association with infection and IL-6 higher than 50 pg/ml was marginally significant (OR = 8.31; 95% CI: 0.81-84.50; p = 0.07). Here, IL6 is linked to infection.