Prevalence, phenotype and medication for the pediatric inflammatory bowel disease population of a state in Southeastern Brazil

Table 2 Phenotype data of pediatric and adult inflammatory bowel disease patients, in the state of Espírito Santo, from August 2012 to July 2014

Characteristics	Total amount		Age at diagnosis ≤ 17 yr old		Age at diagnosis ≥ 18 yr old		P value
	n	%	n	%	n	%
	1.048	(100)	56	(5.34)	992	(94.66)
Ulcerative Colitis	669	(63.2)	24	(42.9)	645	(65.0)
Extension
E1	198	(30.3)	3	(12.5)	195	(31.0)	0.0371
E2	247	(37.9)	6	(25.0)	241	(38.4)	0.183
E3	209	(32.0)	15	(62.5)	194	(30.8)	0.001
Crohn's disease	352	(34.1)	30	(55.4)	322	(32.9)
Localization
L1	11	(31.4)	5	(16.1)	408	(41.1)	0.194
L2	102	(28.9)	10	(32.3)	584	(58.9)	0.861
L3	109	(30.4)	11	(35.5)	92	(28.6)	0.698
L4	11	(30.4)	1	(1.8)	10	(1)
L1+L4	8	(2.3)	1	(3.2)	7	(2.2)
L3+L4	12	(3.4)	2	(6.5)	10	(3.1)
Behavior
B1	200	(56.5)	18	(60.0)	182	(56.3)	0.686
B2	76	(21.5)	1	(3.3)	75	(23.3)	0.0051
B3	75	(21.2)	11	(36.7)	64	(19.5)	0.030
Perianal disease	92	(25.9)	14	(46.6)	78	(24.1)	0.007

¹Proportions are expressed in n (%) and analyzed using the Chi-square test and Fisher’s exact test. L1: Ileal; L2: Colonic; L3: Ileocolonic; L4: Upper gastrointestinal; B1: Inflammatory; B2: Stricturing; B3: Fistulizing; NA: Not available.