CRP and infection: In patients without infections, median CRP and PCT levels were elevated on days one (CRP: 19, interquartile range (IQR): 11-29; PCT: 3, IQR: 1-13) and three (CRP: 18, IQR: 7-30; PCT: 2, IQR: 1-9) but decreased by days five (CRP: 10, IQR: 5-16; PCT: 1, IQR: 0.2-3) and seven (CRP: 10, IQR: 3-17; PCT: 0.7, IQR: 0.3-3).