Investigation of Small Bowel Abnormalities in HIV-Infected Patients Using Capsule Endoscopy

Table 3

Comparison of small bowel abnormalities diagnosed by capsule endoscopy.

	HIV-infected patients	Control subjects	value
Number	24	21
Diagnostic yield, N (%)	13 (55%)	2 (10%)	0.002
Redness, prevalence, N (%)	7 (29%)	2 (10%)	0.14
Total, N (mean)	10 (0.4)	3 (0.1)	0.17
Proximal, N (mean)	5 (0.2)	0	0.06
Distal, N (mean)	5 (0.2)	3 (0.1)	0.63
Erosion, prevalence, N (%)	10 (42%)	1 (5%)	0.01
Total, N (mean)	18 (0.8)	2 (0.1)	0.02
Proximal, N (mean)	11 (0.5)	1 (0.1)	0.01
Distal, N (mean)	7 (0.3)	1 (0.1)	0.19
Ulceration, prevalence, N (%)	3 (13%)	0	0.24
Total number, N (%)	4 (0.2)	0	0.10
Proximal, N (mean)	2 (0.1)	0	0.36
Distal, N (mean)	2 (0.1)	0	0.36
Villous atrophy, N (%)	13 (54%)	0	<0.001

Among 27 HIV-infected patients, three patients diagnosed as having Kaposi’s sarcoma, small bowel mycobacteriosis, and cytomegarovirus-induced small bowel enteritis, respectively, were excluded from subsequent analyses. Each of the CE videos was divided into two segments of equal length according to the small-bowel transit time; the first segment was considered as representing the proximal small bowel, and the second as representing the distal small bowel. values were analyzed using Fisher’s exact test or Student’s t-test.