Glomerular filtration rate and comorbidity factors in elderly hospitalizations

Table 2 Causes of hospitalization by glomerular filtration rate stage, mean ± SD (%)

Reason for hospitalization	G1	G2	G3a	G3b	G4	G5	P value1
Anemia	110.9 ± 18.6 (35.9)	71.4 ± 7.9 (33.0)	51.5 ± 4.2 (40.6)	37.6 ± 4.5 (34.3)	22.9 ± 5.5 (21.0)	10.9 ± 2.9 (11.1)	0.030
Hyperglycemia	100.6 ± 8.1 (7.6)	73 ± 6.8 (13.7)	52.2 ± 3.8 (21.9)	38 ± 5 (18.5)	24.9 ± 4.6 (14.5)	0	0.331
Pneumonia	104.4 ± 8.3 (4.3)	78.1 ± 7.7 (4.6)	55.5 ± 3.8 (2.1)	40.2 ± 1.5 (2.8)	27 (1.6)	0	0.541
Urine infection	108.1 ± 29.4 (4.3)	73.5 ± 8.5 (11.7)	53.2 ± 5.6 (7.3)	37.9 ± 5.2 (8.3)	24.6 ± 3.7 (4.8)	12.5 (2.2)	0.130
Hyponatremia	104.4 ± 10.7 (9.8)	73.7 ± 9.7 (3.0)	52.8 ± 4.6 (6.3)	38.8 ± 3.9 (5.6)	25.3 ± 0.9 (6.5)	13.6 (2.2)	0.233
Malnutrition	109.5 ± 22.2 (27.2)	72.3 ± 8.6 (21.8)	53.4 ± 3 (11.3)	38.7 ± 4.2 (20.3)	25.7 ± 2.4 (13.5)	0	0.000
Acute renal failure	121 (1.1)	0	0	35.4 ± 5.4 (8.3)	20.1 ± 3.4 (32.3)	10.9 ± 3.5 (77.8)	0.000
Hypernatremia	105.3 (1.1)	0	0	0	27 (1.6)	11.7 ± 0.1 (4.4)	0.019
Hypoglycemia	110 (1.1)	74.3 ± 11 (3.0)	48.5 ± 3.9 (2.1)	34 (0.9)	25.4 ± 3.3 (3.2)	0	0.620
Polycythemia	91.4 (1.1)	69 ± 3.1 (2.5)	53.4 ± 7.9 (2.1)	0	0	0	0.354
Gastroenteritis	140.9 ± 5.9 (2.2)	71 (0.5)	53.1 ± 6.1 (3.1)	35.5 ± 3.5 (1.9)	4.5 ± 12 (3.2)	12 (2.2)	0.611

¹Fisher’s exact test and Pearson χ²-tests.