Table 2

Difference in position of fluoroscopy and magnetic sensor alone (MSA) and magnetic sensor with integrated stent (MSIS) readings separated by condition, and position, with positive readings indicating a position caudal to the magnet

Sensor	Position (cm)	Condition	Fluoroscopy—Magnet (cm) mean (95% CI)	P value (difference from fluoroscopy)	Difference from “control” (cm) mean (95% CI)	P value (difference from “control”)
MSA	0	Control	0.41 (0.17, 0.66)	0.0011*	Reference	–
	0	Epinephrine	0.40 (0.16, 0.65)	0.0015*	−0.01 (-0.36, 0.34)	0.945
	0	Hemorrhage	0.26 (0.01, 0.51)	0.0398*	−0.16 (-0.50, 0.19)	0.3804
	0	Metal	0.12 (-0.12, 0.37)	0.3298	−0.29 (-0.64, 0.06)	0.1002
	0	Vibration	0.19 (-0.06, 0.44)	0.1283	−0.22 (-0.57, 0.13)	0.2084
	4	Control	0.17 (-0.08, 0.42)	0.1758	Reference	–
	4	Epinephrine	−0.03 (-0.27, 0.22)	0.8384	−0.20 (-0.54, 0.15)	0.2704
	4	Hemorrhage	−0.12 (-0.36, 0.13)	0.3568	−0.29 (-0.63, 0.06)	0.1082
	4	Metal	−0.07 (-0.32, 0.17)	0.5584	−0.24 (-0.59, 0.11)	0.1706
	4	Vibration	−0.17 (-0.41, 0.08)	0.1844	−0.34 (-0.69, 0.01)	0.0586
	12	Control	−0.38 (-0.63, to 0.13)	0.0026*	Reference	–
	12	Epinephrine	−1.17 (-1.41, to 0.92)	<0.0001*	−0.79 (-1.13, to 0.44)	<0.0001*
	12	Hemorrhage	−1.31 (-1.56, to 1.06)	<0.0001*	−0.93 (-1.28, to 0.58)	<0.0001*
	12	Metal	−0.61 (-0.86, to 0.37)	<0.0001*	−0.23 (-0.58, 0.12)	0.1888
	12	Vibration	−1.06 (-1.31, to 0.82)	<0.0001*	−0.68 (-1.03, to 0.33)	0.0002*
MSIS	0	Control	0.19 (-0.05, 0.44)	0.1261	Reference	–
	0	Epinephrine	0.31 (0.07, 0.56)	0.0131*	0.12 (-0.23, 0.47)	0.4945
	0	Hemorrhage	0.51 (0.27, 0.76)	<0.0001*	0.32 (-0.03, 0.67)	0.0701
	4	Control	−0.12 (-0.37, 0.12)	0.3298	Reference	–
	4	Epinephrine	−0.19 (-0.43, 0.06)	0.1397	−0.06 (-0.41, 0.29)	0.7208
	4	Hemorrhage	−0.31 (-0.55, to 0.06)	0.0148*	−0.19 (-0.53, 0.16)	0.2956
	12	Control	−0.70 (-0.95, to 0.46)	<0.0001*	Reference	–
	12	Epinephrine	−0.94 (-1.19, to 0.70)	<0.0001*	−0.24 (-0.59, 0.11)	0.1745
	12	Hemorrhage	−1.29 (-1.54, to 1.05)	<0.0001*	−0.59 (-0.94, to 0.24)	0.001*

Significant values of p marked with an asterisk (*).
MSA, magnetic sensor alone; MSIS, magnetic sensor with integrated stent.