Survival of geriatric patients after percutaneous endoscopic gastrostomy in Japan

Table 1 Patients’ characteristics stratified by survival (mean ± SD)

Variable	Total (n = 931)	Alive (n = 429)	Dead (n = 502)	P-value
Age (yr)	81.4 ± 7.8	80.0 ± 7.9	82.6 ± 7.6	< 0.00011
Height (cm)	153.0 ± 10.4	152.4 ± 10.5	153.5 ± 10.2	0.201
Weight (kg)	44.7 ± 10.7	44.9 ± 10.8	44.6 ± 10.6	0.791
Body mass index (kg/m2)	19.3 ± 3.7	19.5 ± 4.0	19.1 ± 3.6	0.221
Body temperature (°C)	36.7 ± 0.5	36.7 ± 0.5	36.7 ± 0.5	0.821
White blood cell (/μL) 25/50/75 percentile	5470/6770/8700	5500/6640/8570	5420/6800/8800	0.332
C-reactive protein (mg/dL) 25/50/75 percentile	0.4/1.2/2.8	0.4/1.0/2.4	0.4/1.2/3.2	0.0162
Hematocrit (%) 25/50/75 percentile	29.8/33.5/37.1	30.9/34.2/37.7	29.2/32.8/36.6	0.00012
Hemoglobin (g/dL) 25/50/75 percentile	9.8/11.0/12.3	10.1/11.3/12.6	9.5/10.8/12.1	0.00012
Aspartate aminotransferase (IU/L) 25/50/75 percentile	18/24/35	18/23/31	18/24/39	0.0192
Alanine aminotransferase (IU/L) 25/50/75 percentile	12/19/33	12/19/29	11/20/40	0.222
Blood urea nitrogen (mg/dL) 25/50/75 percentile	12.8/17.7/24.8	12.4/17.0/23.1	13.0/18.6/26.1	0.0182
Serum creatinine (mg/dL) 25/50/75 percentile	0.42/0.59/0.80	0.40/0.56/0.76	0.44/0.60/0.81	0.00962
Albumin (g/dL) 25/50/75 percentile	2.6/3.0/3.3	2.7/3.0/3.4	2.6/2.9/3.2	0.00132

¹The Student t-test was applied because the distribution was considered as normal;

²The Mann-Whitney test was applied because the distribution was considered as not normal.