Table 3.

Comparisons between patients who triggered airport metal detectors and those who did not

Variable	Median (range)		p-Valuea
	Trigger	No trigger
BMI	19.48 (14.61–27.81)	19.44 (14.61–38.65)	0.71
No. of fusion levels	10 (7–11)	10 (3–16)	0.33
Total implants	17 (11–25)	20 (11–32)	0.22
Implant density	2.27 (1.1–2.43)	2.08 (1.09–2.9)	0.58
Travel segments	4 (2–8)	4 (2–20)	0.65

No significant differences were noted between groups for any variable

BMI body mass index

^aWilcoxon rank sum test used for non-parametric analyses