Table 2: P-values of 3D CRT, IMRT and VMAT multiple (Kruskal-Wallis test) and paired group (Tukey’s HSD test) comparison depending on the treatment volume.

Organ at risk

Treatment Volume

p-value

Contralateral Breast

RCA

LADA

Myocardium

Contralateral Lung

Ipsilateral Lung

Right Breast with lymphnodes

3D vs IMRT vs VMAT

<0.001

<0.001

<0.001

<0.001

<0.001

<0.001

3D vs IMRT

<0.001

<0.001

<0.001

<0.001

<0.001

<0.001

3D vs VMAT

<0.001

<0.001

<0.001

<0.001

<0.001

<0.001

IMRT vs VMAT

<0.001

0,978

0,037

0,995

<0.001

<0.001

Left Breast with lymphnodes

3D vs IMRT vs VMAT

<0.001

<0.001

0,006

0,176

<0.001

<0.001

3D vs IMRT

<0.001

0,052

0,003

0,697

<0.001

<0.001

3D vs VMAT

<0.001

<0.001

<0.001

0,676

<0.001

<0.001

IMRT vs VMAT

0,006

0,042

0,41

0,227

0,006

<0.001

Right Breast

3D vs IMRT vs VMAT

<0.001

<0.001

<0.001

<0.001

<0.001

0,718

3D vs IMRT

0,001

0,068

0,022

0,013

<0.001

0,625

3D vs VMAT

<0.001

0,001

<0.001

<0.001

<0.001

0,55

IMRT vs VMAT

<0.001

0,262

<0.001

0,009

<0.001

0,992

Left Breast

3D vs IMRT vs VMAT

<0.001

<0.001

0,245

0,897

<0.001

0,187

3D vs IMRT

0,004

0,039

0,254

0,885

<0.001

0,355

3D vs VMAT

<0.001

<0.001

0,06

0,842

<0.001

0,07

IMRT vs VMAT

0,414

0,057

0,723

0,995

<0.001

0,634