Table 1.

Demographic and Treatment-Related Data (N = 647)^a

Patient	Variable	n	%
Age at diagnosis (range: 27–83, mean 56.6 y)	<50 y	188	29.1%
	50–69 y	405	62.6%
	≥ 70 y	54	8.3%
Breast surgery	Mastectomy	150	23.2%
	Lumpectomy	497	76.8%
Chemotherapy	Neoadjuvant chemo	18	2.8%
	Adjuvant chemo	200	30.9%
	No chemo	429	66.3%
Body mass index (range 16.1–58.9, mean 27.7)	BMI ≥ 25	399	61.7%
	BMI < 25	248	38.3%
Axillary surgery	ALND	120	18.6%
	SLNB	461	71.3%
	No axillary surgery	66	10.2%
Regional lymph node radiation	RLNR	151	23.3%
	No RLNR	496	76.7%

^a BMI = body mass index; ALND = axillary lymph node dissection; SLNB = sentinel lymph node biopsy; RLNR = regional lymph node radiation.