Is Occult Obscure Gastrointestinal Bleeding a Definite Indication for Capsule Endoscopy? A Retrospective Analysis of Diagnostic Yield in Patients with Occult versus Overt Bleeding

Table 5

Clinical characteristics of patients with occult OGIB, per diagnosis.

Characteristic	Vascular lesion	Ulcer or erosive lesion	Tumor	No lesion
	(𝑛=11)	(𝑛=18)	(𝑛=4)	(𝑛=69)
Age (years)	68.8±17.9	70.8±16.1	53.8±25.2	63.4±17.5
Sex ratio (male/female)	9/2^a	8/10	0/4	33/36
Laboratory values
WBC (/𝜇L)	5287±1553	6030±2416	5958±1402	5287±2130
Hemoglobin (g/dL)	7.4±2.0	9.3±2.4^b	8.0±2.4	7.6±2.0
Platelets (/𝜇L)	21.5±5.9	22.5±8.7	33.6±8.8^a	23.0±9.2
Total protein (g/dL)	6.6±0.9	6.6±0.6	6.1±1.6	6.9±0.6
Albumin (g/dL)	3.8±0.5	3.9±0.5	3.9±0.3	4.0±0.6
CRP (mg/dL)	0.40±0.85	0.68±0.96	0.08±0.39	0.35±0.80
Plasma ferritin (mg/L)	7.5±4.6	13.5±12.1	13.6±11.0	9.3±8.7
Symptom(s)
Diarrhea	0 (0)	0 (0)	0 (0)	5 (7)
Body weight loss	0 (0)	0 (0)	1 (25)	2 (3)

Number (%) of patients or mean ± SD values is shown.
^a𝑃<0.05, ^b𝑃<0.01, compared with no lesion.
WBC: white blood cell count; CRP: C-reactive protein.