. Author manuscript; available in PMC: 2018 Nov 1.

Published in final edited form as: Brachytherapy. 2017 Aug 17;16(6):1159–1168. doi: 10.1016/j.brachy.2017.07.007

Table 4.

a: Toxicities (assessed using the Common Toxicity Criteria Version 4.3)
Characteristics	Grade	CT-based ISBT (n = 48)	MR-based ISBT (n = 18)	p-value
Rectal	Grade 1	10 (21%)	4 (22%)	0.90
	Grade 2	9 (19%)	4 (22%)	0.75
	Grade 3	10 (21%)	2 (11%)	0.36
Urinary	Grade 1	5 (10%)	5 (28%)	0.08
	Grade 2	7 (15%)	1 (6%)	0.32
	Grade 3	9 (19%)	1 (6%)	0.18

b: Toxicities among reirradiation cases (assessed using the Common Toxicity Criteria Version 4.3)
Characteristics	Grade	CT-based ISBT re- RT (n = 15)	CT-based ISBT no re- RT (n = 33)	p-value	MR-based ISBT re-RT (n = 9)	MR-based ISBT no re-RT (n = 9)	p-value
Rectal	Grade 1	2 (13%)	8 (24%)	0.94	3 (33%)	1 (11%)	0.92
	Grade 2	0 (0%)	9 (27%)	0.84	1 (11%)	3 (33%)	0.92
	Grade 3	4 (27%)	6 (18%)	0.95	2 (22%)	0 (0%)	0.89
Urinary	Grade 1	1 (7%)	4 (12%)	0.96	3 (33%)	2 (22%)	0.92
	Grade 2	4 (27%)	3 (9%)	0.88	0 (0%)	1 (11%)	0.92
	Grade 3	3 (20%)	6 (18%)	0.99	1 (11%)	0 (0%)	0.92

Abbreviations: ISBT, Interstitial brachytherapy; 2 patients had concurrent grades 3 rectal and urinary toxicities in CT-group