Table 3.

Correlation coefficients between fecal calprotectin (μg/g) and endoscopy after induction (at week 16) and sustained endoscopic response (at week 52)

	Week 16			Week 52
	FC	∆FC †	% decrease FC ‡	FC	∆FC §	% decrease FC ¶
Endoscopic response	−0.62 **	0.40 **	0.52 **	−0.67 **	0.69 **	0.61 **
Endoscopic remission	−0.47 **	0.25 *	0.41 **	−0.63 **	0.52 *	0.45 *
Endoscopic inflammation	0.60 **	−0.36 *	−0.53 **	0.71 **	−0.59 *	−0.52 *

^* P < 0.05.

^** P < 0.001.

^†∆FC indicates the absolute change between baseline and week 16.

^‡% decrease indicates the relative change between baseline and week 16.

^§∆FC indicates the absolute change between week 16 and week 52.

^¶% decrease indicates the relative change between week 16 and week 52.

Spearman's correlation between fecal calprotectin and endoscopic response, endoscopic remission, and endoscopic inflammation (no/mild/moderate/severe) at week 16 and week 52. FC at week 16, n = 97/114 (both time points, n = 76) is correlated to endoscopy at week 16. FC at week 52, n = 35/60 (both time points, n = 30) is correlated with endoscopy at week 52. FC, fecal calprotectin (μg/g).