Computed Tomography-Based Prediction of Lumbar Pedicle Screw Loosening

Table 1

Demographic characteristics of the included patients in the two groups.

	Nonloosening	Loosening
Male/female	98/73	26/18	0.87
Age			0.15
Time of follow-up			0.71
BMI			0.42
Smoker	15	6	0.39
Diabetes	32	10	0.53
HU
L1			<0.01
L2			<0.01
L3			<0.01
L4			<0.01
L5			<0.01
L1-5			<0.01