Table 2.

Effect of Radiation Dose on Lymphocyte Counts (thou/µL)

Dose (cGy)	Stage	Surgery	HER2	Pretreatment Lymphocytes	Posttreatment Lymphocytes	Δ Lymphocytes
5,400	1	M	I	0.7	0.34	−0.36
6,000	2	M	N	1.07	0.84	−0.23
6,000	2	L	N	1.22	0.68	−0.54
6,000	2	M	N	0.85	0.62	−0.23
6,040	3	M	P	1	0.57	−0.43
6,040	3	M	N	0.83	0.25	−0.58
6,040	3	M	N	1.24	0.79	−0.45
6,300	2	L	P	0.7	0.5	−0.2
6,400	1	L	N	1.06	0.8	−0.26
6,440	2	L	P	1	1.1	0.1
6,520	3	L	N	1.1	0.5	−0.6
6,520	3	M	I	0.7	0.5	−0.2
6,640	1	L	N	1.04	0.58	−0.46
6,640	3	M	N	1.25	0.39	−0.86

I = indeterminant; L = lumpectomy; M = mastectomy; N = negative; P = positive.