Table 2.

Patient characteristics.

	Total	SLNB	ALND
Total number of subjects	326	210	116
Lumpectomy	155	123	32
Mastectomy	171	87	84
Mean age at baseline (years μ ± σ)	56.2 ± 11.1	55.6	57.5
Mean time to first follow-up (months μ ± σ)	5.4 ± 3.7	5.3	5.7
Mean total follow-up time (months μ ± σ)	21.7 ± 12.2	21.2	22.7