Table 4.

Clinical and DVH Cut-off Parameters for Worsening Cosmesis.

Variable	OR	p-value
Age	1.11 (0.94 – 1.01)	0.23
BMI	0.90 (0.74–1.10)	0.31
Axillary Dissection vs SLNBx	1.79 (0.27 – 11.86)	0.55
Laterality - Right vs Left	0.20 (0.02 – 1.91)	0.16
Histologic Grade (Ref = Grade 1)
Grade 2	2.44 (0.23 – 26.29)	0.41
Grade 3	8.66 (0.58–130.07)	0.56
Hormonal Therapy (Ref = None)
Tamoxifen	3.00 (0.18 – 50.79)	0.26
AI	1.00 (0.15 – 6.91)	0.91
Bra Cup Size ≥ D	2.43 (0.38 – 15.27)	0.34
Tumor Size (cm)	1.52 (0.46 – 5.00)	0.49
PTV D95%	1.20 (0.43 – 3.39)	0.73
PTV Max Dose	1.06 (0.67 – 1.68)	0.80
Lung V10Gy	1.95 (0.72 – 5.25)	0.19
Breast V20Gy	1.22 (1.03 – 1.44)	0.02
Breast V40Gy	1.26 (1.03 – 1.54)	0.03
Breast V20Gy ≥ 30.48 %	15.00 (1.52 – 148.31)	0.02
Breast V40Gy ≥ 19.48 %	15.00 (1.52 – 148.31)	0.02

Note: BMI = body-mass index; SLNBx = sentinel lymph node biopsy Ref = reference; AI = aromatase inhibitor; PTV = planning target volume; Gy = Gray.

Bold denotes statistical significance.