Table 2.

The linear mixed model predicting intrafraction motion

Variable		Univariable
		coefficient	95% CI	p
Fraction	(per fraction)	0.00	−0.01 - 0.01	0.936
Age	(per 10 years)	−0.01	−0.02 - 0.01	0.491
Gender	Female	0.06	0.02 - 0.10	0.004
	Male	(reference)
BMI	(per 10 units)	−0.03	−0.07 - 0.02	0.244
Vertebrae	(per vertebrae)	0.01	−0.01 - 0.03	0.288
Location	C	(reference)
	C-T	0.02	−0.10 - 0.15	0.859
	L	0.02	−0.05 - 0.09
	T	0.03	−0.03 - 0.10
	T-L	0.02	−0.10 - 0.14
Reirradiation	Yes	−0.01	−0.06 - 0.05	0.832
	No	(reference)