Risk Factors for Hospital and Long-Term Mortality of Critically Ill Elderly Patients Admitted to an Intensive Care Unit
Table 2
Characteristics at admissions.
Characteristics
Total )
Age (year)
value*
<65 )
≥65 )
Source of admission (%)
Emergency
1059 (57.1)
576 (57.7)
483 (56.4)
0.301
Ward
751 (40.5)
394 (39.4)
357 (41.7)
Other
45 (2.43)
29 (2.9)
16 (1.9)
Investigations
Hemoglobin (g/dL)
11.6 (9.4–13.5)
11.8 (9.5–13.8)
11.3 (9.4–13.2)
0.028
Platelets/mm3
249 (159–345)
246 (143–345)
252 (174.5–344.5)
0.455
White blood cells/mm3
12.1 (8.1–17.1)
11.9 (7.8–17.3)
12.3 (8.4–17.1)
0.402
BUN (mmol/L)
8.1 (4.9–14.9)
6.8 (4.3–13.5)
9.8 (5.9–15.7)
<0.001
Creatinine mol/L)
104 (68–211)
95 (65–206)
120 (74–217.5)
<0.001
MPM II score
28 (14–45)
19 (9–34)
35 (24–54)
<0.001
LOS (ICU)
3 (2–6)
3 (2–6)
3 (2–5)
1.000
LOS (hospital)
12 (6–23)
12 (6–23)
12 (6–23)
1.000
Reintubation (%)
93 (8.0)
41 (7.6)
52 (8.4)
0.658
Duration from extubation to discharge
33 (25–76)
31 (25–74)
34 (26–78)
0.372
Preexisting kidney disease (%)
397 (21.5)
152 (15.3)
245 (28.6)
<0.001
BUN: blood urea nitrogen; MPM: mortality prediction model; LOS: length of stay; data provided as number (percentage) and median (interquartile range); significance tests were carried out, accounting for multiple admissions per subject.
