Comparative analysis of delivered and planned doses in target volumes for lung stereotactic ablative radiotherapy

Radiation Oncology

Table 5 Results of the multiple linear regression by SPSS^® (v27, IBM^®, Chicago, IL, USA) with cases having ΔHI less than 17

Model	Unstandardised coefficients		Standardised coefficients	P-value	Tolerance	VIF
Model	B	Std. error	β	P-value	Tolerance	VIF
Constant	3924.36	240.32		0.000
ΔHI	-26.98	0.92	-0.790	0.000	0.771	1.297
D_mean [%]	19.98	2.31	0.232	0.000	0.771	1.297
Adjusted R²	0.85

*VIF: Variance Inflation Factor, Tolerance: a measure of collinearity, ΔHI: difference of homogeneity index, D_mean: mean delivered dose to PTV

ISSN: 1748-717X