Research Article

Duration of Acute Kidney Injury and In-Hospital Mortality in Elder Patients with Severe COVID-19: A Retrospective Cohort Study

Table 2

Complications, treatments and outcomes of patients between transient AKI, persistent AKI, and non-AKI with coronavirus disease 2019.

CharacteristicNon-AKI group (59, 55.1)Transient AKI (11, 22.9)Persistent AKI (37, 77.1) valuea

Complications
 Acute respiratory distress syndrome19 (32.2)5 (45.5)24 (64.9)0.007
 Hypoproteinemia22 (37.3)4 (36.4)15 (40.5)0.941
 Septic shock9 (15.3)4 (36.4)25 (67.6)<0.001
 Disseminated intravascular coagulation3 (5.1)1 (9.1)5 (13.5)0.358
Treatment
 Antibiotic therapy55 (93.2)11 (100.0)35 (94.6)0.492
 Glucocorticoids51 (86.4)10 (90.9)30 (81.1)0.651
 Intravenous immunoglobulin therapy32 (54.2)4 (36.4)25 (67.6)0.149
 Need for vasopressors9 (15.3)7 (63.6)22 (59.5)<0.001
 Oxygen therapy57 (96.6)9 (81.8)33 (89.2)0.163
 Non-invasive mechanical ventilation26 (44.1)10 (90.9)31 (83.8)<0.001
 Invasive mechanical ventilation16 (27.1)9 (81.8)30 (81.1)<0.001
 Continuous renal replacement therapy3 (5.1)2 (18.2)15 (40.5)<0.001
 Extracorporeal membrane oxygenation1 (1.7)1 (9.1)2 (5.4)0.419
Time from symptom onset to hospital admission (days)16 (12–26)14 (7–22)13 (8–20)0.035
Time from symptom onset to ICU admission (days)21 (14–36)24 (17–33)17 (14–26)0.136
Length of hospital stay (days)26 (16–40)32 (14–49)13 (7–23)<0.001
Length of ICU stay (days)9 (5–15)6 (3–36)7 (4–13)0.618
In-hospital mortality11 (18.6)8 (72.7)32 (86.5)<0.001

Abbreviations: AKI: acute kidney injury; ICU: intensive care unit. a values represent the comparability across the three groups.