|
Demographic features
|
|
Age (years)
|
79.6 ± 8.4
|
81.5 ± 7.9
|
0.19
|
|
Gender (male %)
|
33 (58)
|
35 (44)
|
0.12
|
|
Comorbidities
|
|
Diabetes mellitus (%)
|
28 (49)
|
25 (32)
|
0.04
|
|
Hypertension (%)
|
28 (49)
|
50 (63)
|
0.1
|
|
Heart failure (%)
|
12 (21)
|
11 (14)
|
0.28
|
|
Coronary artery disease (%)
|
4 (7)
|
7 (9)
|
0.7
|
|
Peripheral artery occlusive disease (%)
|
3 (5)
|
6 (8)
|
0.59
|
|
Chronic obstructive pulmonary disease (%)
|
7 (12)
|
8 (10)
|
0.7
|
|
Chronic kidney disease (%)
|
31 (54)
|
23 (29)
|
< 0.01
|
|
Previous or active malignancy (%)
|
18 (32)
|
17 (22)
|
0.19
|
|
Peptic ulcer disease (%)
|
7 (12)
|
5 (6)
|
0.23
|
|
Charlson comorbidity index
|
8 (6–10)
|
7 (6–8)
|
0.02
|
|
Initial impression (%)
| | |
< 0.01
|
|
Cardio- or cerebro-vascular events
|
2 (4)
|
9 (11)
| |
|
Pulmonary diseases
|
23 (40)
|
40 (51)
| |
|
Gastrointestinal and hepatic diseases
|
13 (23)
|
8 (10)
| |
|
Renal diseases
|
11 (19)
|
3 (4)
| |
|
Infection of unknown origin
|
2 (4)
|
9 (11)
| |
|
Miscellaneous
|
6 (11)
|
10 (13)
| |
|
First vital signs obtained on ED evaluation
|
|
Systolic blood pressure (mmHg)
|
114 (95–141)
|
144 (123–162)
|
< 0.01
|
|
Diastolic blood pressure (mmHg)
|
64 (54–75)
|
78 (69–90)
|
< 0.01
|
|
Heart rate (/min)
|
94.5 ± 23.3
|
98.3 ± 18.8
|
0.3
|
|
Body temperature (°C)
|
37 ± 1.3
|
37.4 ± 1.1
|
0.06
|
|
Respiratory rate (/min)
|
19 (18–21)
|
20 (18–22)
|
0.69
|
|
First laboratory data on ED
|
|
Leukocyte counts (K/μL)
|
12.3 (7.7–16.2)
|
10.6 (8–14.6)
|
0.12
|
|
Hemoglobin (g/dL)
|
9,7 (7.9–12)
|
11.7 (10.5–13.1)
|
0.06
|
|
Platelet counts (K/μL)
|
200 ± 100
|
243 ± 100
|
0.01
|
|
Baseline eGFR (ml/min/1.73 m2)
|
58.8 (33.5–83.8)
|
76.5 (51.1–91)
|
< 0.01
|
|
Serum creatinine on ward admission (mg/dL)
|
1.9 (1.4–2.5)
|
0.8 (0.6–1.1)
|
< 0.01
|
|
ED length of stay (days)
|
4 (3–5)
|
5 (3–6)
|
0.19
|
