Survival of geriatric patients after percutaneous endoscopic gastrostomy in Japan

Table 2 Cox proportional hazard models

Variable	Single variable analyses			Multivariate analysis
	Crude HR	95% CI	P-value	AHR	95% CI	P-value
Age (yr)	1.03	1.01-1.04	< 0.001	1.02	1.00-1.03	0.009
C-reactive protein (mg/dL)	1.07	1.05-1.10	< 0.001	1.04	1.01-1.07	0.005
Hemoglobin (g/dL)	0.91	0.87-0.95	< 0.001	0.98	0.92-1.05	0.530
Alanine aminotransferase (IU/L)	1.01	1.00-1.01	< 0.001	1.00	0.10-1.00	0.170
Blood urea nitrogen (mg/dL)	1.01	1.01-1.02	< 0.001	1.01	1.00-1.02	0.003
Serum creatinine (mg/dL)	0.99	0.95-1.03	0.640	0.94	0.83-1.05	0.280
Albumin (g/dL)	0.52	0.43-0.63	< 0.001	0.67	0.52-0.85	0.001
Female	0.70	0.58-0.83	< 0.001	0.60	0.48-0.75	< 0.001
No history of pneumonia	0.76	0.63-0.92	0.004	0.99	0.79-1.24	0.950
No history of ischemic heart disease	0.66	0.53-0.82	< 0.001	0.69	0.54-0.88	0.003
No malnutrition	0.76	0.63-0.93	0.009	1.09	0.85-1.39	0.490
Cerebrovascular disease	0.78	0.66-0.93	0.006	0.83	0.67-1.02	0.080

Adjusted for all the variables listed in the table. HR: Hazard ratio; CI: Confidence interval; AHR: Adjusted hazard ratio.