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Table 1 Summary of all relevant patient characteristics: patient -, tumour- and treatment related parameters

From: Factors of influence on acute skin toxicity of breast cancer patients treated with standard three-dimensional conformal radiotherapy (3D-CRT) after breast conserving surgery (BCS)

Patient characteristics (at the beginning of EBRT) Median Range
Age [years] 52.4 24.3-77.3
Patient weight [kg] 65 44-120
Patient height [cm] 166 150-180
Body-Mass-Index 23.9 17.4-41.8
Breast target volume [cc] 946.9 402-4283
Smoking n %
 · no current smoking 146 69.2
 · current smoking 41 19.4
 · unknown 24 11.4
Allergies   
 · with allergies 71 33.6
 · without allergies 140 66.4
Tumour characteristics n %
Tumour localization   
 · right-sided 100 47.4
 · left-sided 110 52.1
 · both sides 1 0.5
Histology   
 · ductal-invasive 137 64.9
 · ductal-invasive + DCIS 29 13.7
 · lobular-invasive 15 7.1
 · mixed (ductal- and lobular-invasive) 15 7.1
 · other 15 7.1
T-stage   
 · 1 143 67.8
 · 2 64 30.3
 · 3 3 1.4
 · 4 1 0.5
Treatment characteristics 3D-CRT Median Range
Interval BCS – start of 3D-CRT [days] 74 19-393
Interval start of 3D-CRT-boost [days] 38 30-79
Energy levels n %
 · 6 MV 168 79.6
 · 6 MV/18 MV 39 18.5
 · 6 MV/18 MV/23 MV 4 1.9
Systemic therapy   
Chemotherapy   
 · no chemotherapy 104 49.3
 · Anthracyclines 59 28.0
 · Taxanes 1 0.5
 · Anthracyclines and taxanes 45 21.3
 · neither anthracyclines nor taxanes 2 1.0
Antihormonal therapy   
 · no antihormonal therapy 51 24.2
 · Tamoxifen 111 52.6
 · Aromatase inhibitors 49 23.2
Herceptin   
 · no 191 90.5
 · yes 20 9.5