Effect of longer battery life on small bowel capsule endoscopy

Table 3 Unadjusted analysis

Variable	All(n = 408)	SB2(n = 186)	SB2U(n = 222)	P value
GTT, minutes				0.794
Mean ± SD	35.4 ± 44.5	35.0 ± 41.5	35.7 ± 47.0
Median (IQR)	19.5 (10.7, 41.9)	19.5 (10.6, 42.7)	19.5 (10.9, 41.8)
Range	(0.1, 417.2)	(0.1, 262.8)	(0.4, 417.2)
SBTT, hours				0.669
Mean ± SD	4.1 ± 2.2	3.9 ± 1.6	4.3 ± 2.6
Median (IQR)	3.9 (2.7, 4.8)	3.9 (2.8, 4.5)	3.9 (2.5, 4.9)
Range	(0.3, 14.5)	(0.3, 7.8)	(0.5, 14.5)
Total recorded time, h				< 0.001
Mean ± SD	8.4 ± 1.8	7.7 ± 0.5	9.0 ± 2.2
Median (IQR)	7.9 (7.9, 8.2)	7.9 (7.8, 7.9)	8.2 (8.0, 8.6)
Range	(3.6, 16.1)	(3.8, 8.0)	(3.6, 16.1)
Completion				0.076
No	37 (9.1)	22 (11.8)	15 (6.8)
Yes	371 (90.9)	164 (88.2)	207 (93.2)
Result				0.905
Negative	279 (68.7)	127 (69.0)	152 (68.5)
Positive	127 (31.3)	57 (31.0)	70 (31.5)

IQR: Interquartile range; GTT: Gastric transit time; SBTT: Small bowel transit time; SD: Standard deviation.