Cystatin C at Admission in the Intensive Care Unit Predicts Mortality among Elderly Patients

Table 1

Demographic, clinical, and epidemiological characteristics of all patients according to acute kidney injury (AKI) (𝑛=234).

Characteristic	AKI; (𝑛=45)	No AKI; (𝑛=189)	P
Age (years)	74±11	75±11	0.89
BMI	26±5	26±5	0.96
Gender (% males)	70	60	0.13
ICU hospitalization (days)	7±21	4±6	0.11
APACHE II score	20±5	18±5	0.07
Albumin (mg/dL)*	3.00±0.91	3.00±0.60	0.82
CRP (mg/dL)*	9.00±8.44	7.73±8.77	0.38
sCr (mg/dL)*	0.80±0.20	0.76±0.22	0.35
Cystatin C (mg/L)*	1.05±0.48	0.94±0.36	0.10
Sepsis	9 (20%)	42 (22.2%)	0.84
CAD/heart failure	17 (37.7%)	70 (40.7%)	0.85
Stroke	4 (8.9%)	19 (10.1%)	0.82
Mechanical ventilation*	33 (35.5%)	52 (21.6%)	0.01
Use of vasopressor drugs	25 (26.9%)	53 (22.0%)	0.38
Hypertension	19 (42.2%)	99 (52.4%)	0.25
Diabetes mellitus	11 (24.4%)	48 (25.4%)	0.90
Death	3 (6.7%)	10 (5.3%)	0.72

Student’s t-test; chi-square test (𝜒²).
AKI: acute kidney injury, BMI: body mass index, ICU: intensive care unit, CRP: C-reactive protein, sCr: serum creatinine, CAD: coronary artery disease.
∗At admission in ICU.