Table 4.

Results of the Adjustments of the Initial and Final Cox Regression Models to Identify Risk Factors for Mortality of PEG in Patients

	Initial Model		Final Model
Variables	HR (CI 95%)	P	HR (CI 95%)	P
Postoperative dialysis	2.74 (1.7–4.45)	<0.001	3.06 (1.91–4.89)	<0.001
Preoperative ICU hospitalization	1.7 (1.25–2.3)	0.001	1.79 (1.36–2.36)	<0.001
Postoperative ICU hospitalization	1.14 (0.86–1.51)	0.342
Postoperative tracheostomy	1.39 (1.07–1.82)	0.013	1.45 (1.11–1.88)	0.005
Hemoglobin	0.92 (0.86–0.99)	0.041	0.91 (0.85–0.98)	0.015
BUN	1 (0.99–1.00)	0.127

BUN, blood urea nitrogen; ICU, intensive care unit; HR, hazard ratio.