Prolonged QT dispersion in inflammatory bowel disease

Table 1 Characteristics of patients with Crohn’s disease, and the relationship between QT prolongation n (%)

	CD QT prolongation		Test values
	-	+	χ2	P value
Diagnosis period (yr)	26.47 ± 34.27	27.2 ± 32.88	Z = 0.31	0.74
Family history			0.97	0.61
None	30 (83.3)	5 (100)
CD	3 (8.3)
Colon cancer	3 (8.3)
Operation			2.11	0.14
Yes	5 (13.88)	2 (40)
No	31 (86.11)	3 (60)
Age at diagnosis (yr)			3.01	0.22
< 17	2 (5.6)
17-40	33 (91.70)	4 (80)
> 40	1 (2.80)	1 (20)
Disease behavior			23.35	0.000b
Non-stricturing Non penetrating	22 (61.1)	1 (20)
Stricturing	14 (38.9)	1 (20)
Penetrating	-	3 (60)
Disease location			0.55	0.75
İleal	12 (33.3)	1 (20)
Colonic	1 (2.80)	-
İleocolonic	23 (63.90)	4 (80)
CDAI value			0.013	0.91
CDAI < 150	28 (77.7)	4 (80)
CDAI ≥ 150	8 (22.2)	1 (20)
Drug use			0.13	0.71
Used	26 (72.2)	4 (80)
Not used	10 (27.8)	1 (20)
5-ASA			0.23	0.62
Used	11 (30.6)	1 (20)
Not used	25 (69.4)	4 (80)
CS			0.97	0.32
Used	30 (83.3)	5 (100)
Not used	6 (16.7)	-
IS			0.13	0.71
Used	26 (72.2)	4 (80)
Not used	10 (27.8)	1 (20)
Smoking			0.66	0.72
Yes	21 (58.3)	2 (40)
No	9 (25)	2 (40)
Quit	6 (16.7)	1 (20)
Alcohol			2.08	0.35
Yes	9 (25)	-
No	25 (69.4)	5 (100)
Quit	2 (5.6)	-

^bP < 0.01, χ² test and Z: Mann-Whitney U test. CD: Crohn’s disease; CDAI: Crohn’s disease activity index; 5-ASA: 5-aminosalicylic acid; CS: Corticosteroid; IS: immunosuppressive.