Table 1.

Characteristics of patients in the angioectasia and non-angioectasia groups

Patient characteristics	Angioectasia group	Non-angioectasia group	P-value
	(n = 64)	(n = 97)
Sex
Male	39	57	n.s
Female	25	40
Age (years)
Mean ± SD	71.2 ± 13.9	63.4 ± 17.3	<0.01
Median (range)	75.5 (27–87)	66 (17–85)
< 65	18	43	<0.05
≧65	46	54
OGIB type
Occult	15	20	n.s
Overt	49	77
Drug use
Antithrombotic
Yes	20	18	n.s
No	44	79
NSAIDS
Yes	6	20	n.s
No	58	77
Underlying disease
Cerebrovascular disease
Yes	6	8	n.s
No	58	89
Cardiovascular disease
Yes	27	19	<0.01
No	37	78
Chronic renal failure
Yes	6	7	n.s
No	58	90
Hypertension
Yes	38	43	n.s
No	26	54
Dyslipidemia
Yes	9	10	n.s
No	55	87
Diabetes
Yes	15	16	n.s
No	49	81
Liver cirrhosis
Yes	15	6	<0.01
No	49	91

Abbreviations: OGIB obscure gastrointestinal bleeding; NSAIDS nonsteroidal anti-inflammatory drugs