Table 2.

Prevalence of CTC graded gastrointestinal (GI) toxicities at each follow-up to 36 months.

	Month	1	3	6	9	12	18	24	30	36
Toxicity	Grade	%	%	%	%	%	%	%	%	%
Diarrhea	0	75	82	83	74	79	95	78	77	79
	1	19	14	13	23	19	5	20	22	21
	2	7	3	4	3	2	0	2	1	0
Proctitis	0	90	96	95	95	93	96	95	96	93
	1	10	4	5	5	7	4	5	4	7
	2	0	0	0	0	0	0	0	0	0
Rectal bleeding	0	87	96	87	85	83	84	81	87	87
	1	13	4	13	15	12	14	18	13	12
	2	0	0	0	0	4	2	1	0	1
	3	0	0	0	0	1a	0	0	0	0
Highest GI	0	62	76	72	66	64	68	65	68	68
	1	31	21	24	31	31	29	32	31	31
	2	7	3	4	3	4	3	3	1	1
	3	0	0	0	0	1	0	0	0	0

^aPatient with non-healing ulcer required hyperbaric oxygen and was assigned as grade 3 toxicity.