TABLE 4.

Association of Prior Medication with Initial Treatment Success

			Initial Treatment Success
Medication class			Failure		Success		P value
			N	%	N	%
Antibiotic		No	12	55	7	41	0.52
		Yes	10	45	10	59
PPI		No	10	45	9	53	0.75
		Yes	12	55	8	47
Probiotic		No	17	77	15	88	0.44
		Yes	5	23	2	12
Anti-inflammatory		No	14	64	4	24	0.02
		Yes	8	36	13	76
Steroid		No	13	59	10	59	1.00
		Yes	9	41	7	41
Immune modulator		No	13	59	12	71	0.46
		Yes	9	41	5	29
	MTX	No	20	91	17	100	0.50
		Yes	2	9	0	0
	6MP	No	17	77	13	76	1.00
		Yes	5	23	4	24
	AZT	No	20	91	16	94	1.00
		Yes	2	9	1	6
Biological		No	17	77	14	82	1.00
		Yes	5	23	3	18
	Remicade	No	17	77	15	88	0.44
		Yes	5	23	2	12
	Humira	No	22	100	16	94	0.44
		Yes	0	0	1	6

PPI = proton pump inhibitor; MTX = methotrexate; 6MP = 6-mercaptopurine; AZT = azidothymidine