Table 7.

Results of a Univariate Analysis of Co-morbidities in Patients with Postoperative Bleeding after Colorectal Endoscopic Submucosal Dissection.

Co-morbidity	Total	Present	Absent	p
Number of patients	398	19	379
Cerebral vessel diseases
(+)	30	2 (6.7%)	28 (93.3%)	N.S.
(-)	368	17 (4.6%)	351 (95.4%)
Ischemic heart disease
(+)	46	2 (4.3%)	44 (95.7%)	N.S.
(-)	352	17 (4.8%)	335 (95.2%)
Chronic liver damage
(+)	23	3 (13%)	20 (87%)	N.S.
(-)	375	16 (4.3%)	359 (95.7%)
Chronic renal dysfunction
(+)	14	2 (14.3%)	12 (85.7%)	N.S.
(-)	384	17 (4.4%)	367 (95.6%)
Hyperuricemia
(+)	31	2 (6.5%)	29 (93.5%)	N.S.
(-)	367	17 (4.6%)	350 (95.4%)
Hypertension
(+)	171	8 (4.7%)	163 (95.3%)	N.S.
(-)	227	11 (4.8%)	216 (95.2%)
Diabetes mellitus
(+)	51	3 (5.9%)	48 (94.1%)	N.S.
(-)	347	16 (4.6%)	331 (95.4%)

N.S.: not significant