Table 2.

p values for statistic comparison of six advanced PMRT techniques using post hoc Tukey test. NC-VMAT: non-coplanar VMAT; MA-VMAT: multiple-arc VMAT; TOMO: Tomotherapy; Mixed: mixed beam therapy; STD VMAT: standard VMAT; PTV: planning target volume; CL breast: contralateral breast.

Variable	NC-VMAT vs MA-VMAT	NC-VMAT vs Fixed beam IMRT	NC-VMAT vs TOMO	NC-VMAT vs STD VMAT	NC-VMAT vs Mixed	MA-VMAT vs Fixed beam IMRT	MA-VMAT vs TOMO	MA-VMAT vs STD VMAT	MA-VMAT s Mixed	Fixed-beam MRT vs TOMO	Fixed-beam MRT vs STD VMAT	Fixed-beam IMRT vs Mixed	TOMO vs STD VMAT	TOMO vs Mixed	STD VMAT vs Mixed
PTV
Dmean	0.999	0.526	1.000	0.997	<0.001*	0.776	1.000	0.953	<0.001*	0.595	0.243	<0.001*	0.992	<0.001*	<0.001*
Dmax	0.971	0.057	0.487	0.982	<0.001*	0.328	0.111	0.676	<0.001*	<0.001*	0.006*	0.028*	0.895	<0.001*	<0.001*
V107 % (%)	1.000	1.000	1.000	1.000	<0.001*	1.000	1.000	1.000	<0.001*	1.000	1.000	<0.001*	1.000	<0.001*	<0.001*
CI	0.0943	<0.001*	<0.001*	1.000	<0.001*	<0.001*	<0.001*	0.124	<0.001*	0.516	<0.001*	1.000	<0.001*	0.734	<0.001*
DHI	1.000	0.158	0.253	0.525	<0.001*	0.202	0.202	0.601	<0.001*	<0.001*	0.984	<0.001*	0.001*	<0.001*	<0.001*
Lung
Dmean	0.990	0.845	<0.001*	0.004*	0.0712	0.993	<0.001*	0.034*	0.286	<0.001*	0.152	0.643	<0.001*	<0.001*	0.952
Dmax	0.955	<0.001*	0.956	0.636	<0.001*	<0.001*	0.515	0.984	<0.001*	<0.001*	<0.001*	0.938	0.155	<0.001*	0.004*
V5	0.988	0.999	<0.001*	0.063	1.000	0.999	<0.001*	0.268	0.993	<0.001*	0.127	0.999	<0.001*	<0.001*	0.073
V10	0.981	0.058	<0.001*	0.136	0.369	0.291	<0.001*	0.495	0.814	0.004*	0.999	0.959	<0.001*	<0.001*	0.996
V20	1.000	0.159	0.996	0.989	0.088	0.164	0.996	0.990	0.091	0.411	0.487	0.999	1.000	0.271	0.333
NTCP	0.999	0.942	<0.001*	0.078	0.187	0.995	<0.001*	0.193	0.382	<0.001*	0.486	0.727	<0.001*	<0.001*	0.999
LAR (%)	0.999	0.966	<0.001*	0.096	0.143	0.999	<0.001*	0.235	0.321	<0.001*	0.469	0.580	0.116	0.076	1.000
Heart
Dmean	0.994	0.360	<0.001*	0.008*	0.993	0.711	<0.001*	0.044*	0.876	0.019*	0.686	0.113	0.533	<0.001*	<0.001*
Dmax	1.000	<0.001*	0.591	0.958	0.682	<0.001*	0.756	0.878	0.831	<0.001*	0.006*	<0.001*	0.137	1.000	0.186
V5	0.989	0.643	<0.001*	0.006*	1.000	0.947	<0.001*	0.047*	0.984	<0.001*	0.361	0.613	0.068	<0.001*	0.005*
V10	0.999	0.986	<0.001*	0.864	1.000	0.995	<0.001*	0.914	1.000	0.001*	0.997	0.992	0.007*	<0.001*	0.896
V22.5	0.986	0.262	0.999	0.032*	0.425	0.670	0.941	0.177	0.118	0.152	0.957	<0.001*	0.014*	0.598	<0.001*
V30	0.999	0.021*	0.979	0.056	0.639	0.049*	0.917	0.116	0.454	0.002*	0.999	<0.001*	0.006*	0.965	<0.001*
RCE (%)	1.000	0.252	0.009*	0.025*	0.931	0.337	0.015*	0.040*	0.874	0.823	0.943	0.022*	1.000	<0.001*	<0.001*
CL breast
Dmean	0.998	0.001*	0.644	0.596	0.007*	<0.001*	0.878	0.846	0.001*	<0.001*	<0.001*	0.997	1.000	<0.001*	<0.001*
Dmax	0.905	0.006*	0.005*	0.029*	<0.001*	0.135	0.113	0.342	0.027*	1.000	0.997	0.992	0.995	0.995	0.898
V5	0.930	0.215	0.688	0.712	0.181	0.017*	0.996	0.997	0.127	0.003*	0.003*	1.000	1.000	0.002*	0.002*
LAR (%)	0.965	0.259	0.760	0.528	0.997	0.035*	0.995	0.949	0.788	0.006*	0.002*	0.548	0.999	0.450	0.245

^*indicates statistical significant.