Radiotherapy for screen-detected ductal carcinoma in situ: indications and utilization in the United Kingdom – findings from the Sloane Project

Table 1

	Received radiotherapy	Did not receive radiotherapy
Margin
<1 mm	34	36
1–9 mm	152	111
≥10 mm	129	100
Size
≤15 mm	161	213
16–40 mm	153	58
≥41 mm	14	5
Grade
High	243	95
Intermediate	83	126
Low	12	57

ISSN: 1465-542X