Table 6.

Recovery of kidney function

Variable	Recovery (complete/incomplete)	No recovery	p value
Gender (females in %)	37.2/45.5	37.2	0.56
Age (mean years)	77.6 ± 0.9/79.2 ± 1.1	78.2 ± 1.4	0.55
In-hospital stay (mean days)	19.6 ± 1.2/17.8 ± 1.2	9.6 ± 0.9	< 0.001
AKIN stage (1/2/3 in %)	76.7/18.6/4.7 and 63.6/20/16.4	61.4/19.3/19.3	0.07
Initial eGFR (ml/min)	41.3 ± 2.2/47.1 ± 2.7	43.8 ± 2.4	0.2
Minimal eGFR (ml/min)	25.6 ± 1.3/24.4 ± 1.5	23.8 ± 1.6	0.55
eGFR at demission (ml/min)	51.1 ± 2.4/33.6 ± 2	24.7 ± 1.7	< 0.001
Dialysis (%)	4.7/10.9	15.8	0.08
Initial sodium (mMol/L)	137.3 ± 0.56/138 ± 0.76	138 ± 0.64	0.26
Sodium at AKI onset (mMol/L)	138.6 ± 0.6/138.6 ± 0.6	139.2 ± 0.72	0.41
Initial potassium (mMol/L)	4.4 ± 0.08/4.3 ± 0.08	4.5 ± 0.09	0.18
Potassium at AKI onset (mMol/L)	4.4 ± 0.08/4.3 ± 0.09	4.6 ± 0.1	0.056
Initial CRP (mg/L)	36 ± 6.1/35.7 ± 6.6	36.4 ± 8.3	0.59
Peak CRP (mg/L)	106.7 ± 10.1/82.2 ± 9.5	100.1 ± 12.4	0.47
NT-proBNP (pg/mL)	11,867 ± 1,368/10,514 ± 1,678	14,328 ± 1,961	0.23
Vasopressors (%)	20.9/16.4	36.8	0.026
Ventilation (no/non-invasive/invasive in %)	76.7/16.3/7 and 85.5/10.9/3.6	71.9/10.5/17.5	0.07
ICU treatment (no/1–3/4–10/ > 10 days in %)	70.9/7/12.8/9.3 and 83.6/9.1/3.6/3.6	68.4/17.5/10.5/3.5	0.1
Coronary angiography (no/before/after AKI onset in %)	74.4/7/18.6 and 74.5/10.9/14.5	70.2/24.6/5.3	0.01
Hypertension (%)	90.6/88.9	85.7	0.6
Diabetes (no/non-insulin-dependent/insulin-dependent in %)	45.3/12.8/41.9 and 47.3/18.2/34.5	46.4/12.5/41.1	0.8
Pre-existing CKD (%)	65.1/63.6	64.3	0.9
Pre-existing CHF (%)	57.1/54.5	57.1	0.9
Pre-existing CAD (%)	54.7/50.9	47.4	0.69
Obesity (%)	48.2/40	56.1	0.23
BMI (mean in mg/qm)	29.7 ± 0.8/32.3 ± 1	28.9 ± 2	0.1
Hyperuricemia (%)	23.5/20	25	0.81
Neoplasia (%)	23.8/23.6	30.4	0.63

Results are either shown as mean ± SEM or as percentages

Statistically significant p values are in bold (p < 0.05)