Table 3. Bivariate correlation between calculated serum CRP threshold values and Rutgeerts’ recurrence at 12 months (n=63).

Calculated serum CRP threshold values	Correlation with endoscopic recurrence (n=63)
CRP preop 4.0 mg/l (Figure 4a)	P=0.15
CRP postop (POD1) 39.8 mg/l (Figure 4b)	P=0.008
CRP discharge (POD5) 23.2 mg/l (Figure 4c)	P=0.03
CRP increase (POD1−Preop) 27.5 mg/l (Figure 4d)	P=0.03
CRP decrease (POD1−POD5) 21.9 mg/l (Figure 4e)	P=0.07

Spearman’s rank correlation coefficient is used.