TABLE 1.

Characteristics of the enrolled subjects according to their relapse status

	Quiescent N = 106	Relapsed N = 35	p value
Sex			0.54
Male	64 (59%)	23 (66%)
Female	41 (38%)	12 (34%)
Age (years)			0.14
≤35	25 (23%)	10 (29%)
36–45	29 (27%)	12 (34%)
46–55	22 (20%)	9 (26%)
56–65	19 (18%)	3 (9%)
>65	13 (12%)	0 (0%)
UC diagnosis			0.32
Left‐sided colitis	76 (70%)	29 (83%)
Pancolitis	30 (28%)	6 (17%)
Gut location
Ileum	2 (2%)	0 (0%)	0.15
Caecum	22 (20%)	3 (9%)	0.11
Ascending	33 (31%)	11 (31%)	0.92
Transverse	38 (35%)	10 (29%)	0.47
Descending	47 (44%)	19 (54%)	0.27
Sigmoid	104 (96%)	34 (97%)	0.81
Rectum	101 (94%)	34 (97%)	0.42
Severity of past disease			0.49
Mild	15 (14%)	3 (9%)
Moderate	33 (31%)	16 (46%)
Severe	14 (13%)	3 (9%)
Inactive	4 (4%)	2 (6%)
Not available	42 (39%)	11 (31%)
Medications
Mesalazine	74 (69%)	22 (63%)	0.49
Corticosteroids	7 (6%)	5 (14%)	0.18
Azathioprene	16 (15%)	6 (17%)	0.84
Anti‐TNF	20 (19%)	6 (17%)	0.73
Other	25 (23%)	9 (26%)	0.87
Other
Initial diagnosis (years prior)	7.6 (4.0–13.2)	6.1 (4.0–10.8)	0.45
CRP (mg/dl)	0.13 (0.08–0.27)	0.16 (0.08–0.27)	0.64
FC
Baseline (μg/g)	34.5 (10.7–89.8)	35.6 (10.8–129)	0.56
Last or last before relapse (μg/g)	38.7 (10.7–132)	100 (15.4–457)	0.0348
Last FC from relapse (days)	‐	78 (57–104)
FC during relapse		784 (538–1730)

Note: Numbers represent frequencies (%) or median with interquartile ranges. The bold p values are for chi square of frequencies of multiple parameters.

Abbreviations: CRP, C‐reactive protein; FC, fecal calprotectin; UC, ulcerative colitis.