Table 2.

Self-reported cancer outcomes relative to patients treated with lumpectomy and whole-breast irradiation

	n	Any recurrence*	In-breast recurrence*	Subsequent mastectomy*	Recurrence elsewhere*	Contralateral breast cancer*	Second primary*
Lump + WBI	108	Referent	Referent	Referent	Referent	Referent	Referent
Lump + Brachy	103	5.2%	5.8%	5.9%	1.0%	−0.8%	4.0%
Lump alone	78	6.3%	6.4%	−0.9%	2.0%	−1.1%	−1.7%
Mast alone	89	8.1%	–	–	1.5%	4.2%	−2.0%
Mast + RT	111	1.6%	–	–	0.8%	−1.9%	−3.3%
P value†		.30	.01	<.001	.94	.27	.76

Abbreviations: Lump alone = lumpectomy plus endocrine therapy alone; Lump + Brachy = lumpectomy plus brachytherapy; Lump + WBI = lumpectomy plus whole-breast irradiation; Mast alone = mastectomy alone; Mast + RT = mastectomy plus radiation therapy.

^*The actual risks of events cannot be reported because of Centers for Medicare & Medicaid Services regulations. As a result, risks are reported relative to the risk among patients treated with Lump + WBI. For example, the risk of patient-reported in-breast recurrence was 5.8% higher among patients treated with Lump + Brachy compared with Lump + WBI.

^†Fisher exact test.