Table 3.

Univariate linear regression models of weight loss (WL) and shape change (lateral neck diameter – LND, slice surface area – SSA) during treatment against changes in spinal cord dose (SCD_2%). Anatomical change is measured at the level of the C1 vertebra and superior thyroid notch (TN).

Model	Intercept	B	r2	P
ΔWL vs ΔSCD2%	−0.27	0.006	<0.001	0.90
ΔC1LND vs ΔSCD2%	0.02	−0.017	<0.001	0.80
ΔC1SSA vs ΔSCD2%	0.59	−0.14	0.02	0.08
ΔTNLND vs ΔSCD2%	0.13	−0.06	0.002	0.26
ΔTNSSA vs ΔSCD2%	−0.12	<0.001	<0.001	0.99