|
Characteristics
|
Patients at high risk
|
Patients not at high risk
|
Pa
|
|---|
|
n = 627
|
n = 3514
|
|---|
|
Sex, % male
|
54.5
|
54.1
|
0.831
|
|
Age in years, mean (SD)
|
74.9 (9.5)
|
64.0 (13.7)
|
< 0.001
|
|
Length of stay in days, mean (SD)
|
4.7 (8.6)
|
3.4 (11.1)
|
0.004
|
|
Day admission, %
|
32.4
|
39.2
|
0.005
|
|
Acute admission, %
|
27.7
|
22.1
|
0.002
|
|
eGFR in ml/min/1.73 m2, mean (SD)
|
44.0 (11.6)
|
70.6 (17.1)
|
< 0.001
|
|
Risk factors for CIN, %
|
|
0 risk factors
|
1.1
|
42.0
|
< 0.001
|
|
1 risk factor
|
9.7
|
26.6
|
|
2 risk factors
|
31.3
|
15.8
|
|
≥3 risk factors
|
57.9
|
15.7
|
|
Diabetes mellitus
|
31.4
|
13.3
|
< 0.001
|
|
Peripheral vascular disease
|
20.4
|
9.6
|
< 0.001
|
|
Heart failure
|
39.2
|
19.9
|
< 0.001
|
|
Age > 75 year
|
52.3
|
18.8
|
< 0.001
|
|
Anemia
|
8.9
|
2.7
|
< 0.001
|
|
Symptomatic hypotension
|
1.6
|
0.5
|
0.002
|
|
Contrast volume > 150 ml
|
1.6
|
0.8
|
0.054
|
|
Decreased circulating volume
|
0.16
|
0.03
|
0.169
|
|
Use of diuretics
|
41.3
|
15.1
|
< 0.001
|
|
Use of nephrotoxic drugs
|
52.0
|
30.4
|
< 0.001
|
-
Abbreviations: CIN Contrast-induced nephropathy.
-
aTested by chi-square tests (categorical variables) or Student’s t-tests (continuous variables).
