Table 1.

Patient & Surgical Characteristics

	Non-RT†		RT		Total		P
	n	%	n	%	n	%
Total number of patients	157		61		218
Total number of reconstructed breasts	161		61		222
Age							<0.0001
Median	51.0		46.5		50.0
Range	25.0 – 79.9		26.3 – 82.9		25.0 – 82.9
BMI††							0.99
Median	23.8		24.2		24.0
Range	15.6 – 43.7		17.7 – 40.9		15.6 – 43.7
Hypertension	50	32%	8	13%	58	27%	0.006
Diabetes	10	6%	1	2%	11	5%	0.30
Smoker	25	16%	2	3%	27	12%	0.01
Bilateral Cancer	4	3%	0	0%	4	2%	0.59
Stage*							<0.0001
0	32	20%	1	2%	33	15%
I	74	46%	3	5%	77	35%
II	52	32%	40	66%	92	41%
III	3	2%	17	28%	20	9%
Chemotherapy							<0.0001
Yes	55	35%	56	92%	111	51%
No	96	61%	5	8%	101	46%
Unknown	6	4%	0	0%	6	3%
Hormone Therapy							0.13
Yes	104	66%	48	79%	152	70%
No	50	32%	13	21%	63	29%
Unknown	3	2%	0	0%	3	1%
Surgical Details*
Skin Sparing Mastectomy	34	21%	22	35%	56	25%	0.04
Nipple Sparing Mastectomy	15	9%	10	16%	25	11%	0.16
SLN§ Biopsy and/or Axillary Dissection	133	83%	60	98%	193	87%	0.004
SLN Biopsy Only	67	42%	15	25%	82	37%
Axillary Dissection Only	55	34%	17	28%	72	32%
Alloderm/DermaMatrix Usage	56	35%	26	42%	82	37%	0.35
Permanent Implant Procedure*							0.002
Saline	87	54%	24	39%	111	50%
Silicone	74	46%	37	61%	111	50%
Flap Performed	0	0%	4	6%	4	2%
Elective Surgeries
Contralateral Prophylactic Mastectomy	40	25%	16	26%	56	26%	1.00
Any Contralateral Procedure*	113	70%	41	67%	154	69%	0.51
Ipsilateral Nipple Reconstruction*	76	47%	23	37%	99	45%	0.17

KEY:

^†= Radiation Therapy,

^††= Body Mass Index,

^§= Sentinel Lymph Node,

^*indicates categories where denominator is total number of breasts with disease reconstructed with a tissue expander and permanent implant.