Table 1.

Patient characteristics and clinical parameters at hospital discharge: description of hospital survivors and comparison of the long-term survivors studied for morbidity, comorbidity, and quality of life with the rest of the population

Hospital Survivors (n = 595)Long-Term Survivors Studied (n = 204)Long-Term Survivors Not Studied (n = 209)P Value of Difference
Patient characteristics
    Age: mean (range)64.1 (16 to 97)61.1 (15 to 90)60.8 (19 to 96)0.848
    Male sex (%)63.958.964.10.278
    BMI: mean (range)26.3 (14.5 to 55.1)26.3 (14.7 to 55.1)26.8 (14.5 to 50.8)0.387
Clinical characteristics
    Ventilation (%)47.449.046.40.600
    Sepsis (%)40.041.536.40.287
    Setting of AKI (% medical)71.574.065.70.068
    Type of AKI (%)0.026
        Pre-renal49.744.853.4
        Renal42.446.842.7
        Post-renal0.80.01.0
        Acute on chronic disease7.08.42.9
    Specific renal causes of AKI (%)0.981
        Acute tubular necrosis84.486.387.5
        Acute glomerulonephritis5.96.35.7
        Acute interstitial nephritis4.74.24.5
        Systemic disease3.93.22.3
Severity scores
    SHARF score 0 h: mean (±SD)51.1 (26.8)50.2 (26.5)50.4 (27.4)0.942
    APACHE II 0 h: mean (±SD)21.0 (8.8)22.0 (9.1)20.5 (9.0)0.111
    SOFA 0 h: mean (±SD)7.8 (3.4)7.8 (3.3)7.9 (3.5)0.728
    SOFA 24 h: mean (±SD)7.3 (3.8)7.2 (3.5)7.6 (3.9)0.306
    SOFA 48 h: mean (±SD)6.9 (3.7)7.0 (3.6)6.8 (3.8)0.667
Treatment (%)0.037
    Conservative57.152.563.6
    IRRT28.433.322.5
    CRRT14.514.213.9
ICU and hospital stay
    Days hospitalization: mean (range)42.8 (1 to 339)41.8 (1 to 189)41.9 (1 to 339)0.976
    Late admission to ICU (%)42.837.344.70.132
Renal outcome
    Creatinine clearance at discharge61.0 (31.4)59.5 (27.8)66.0 (33.5)0.064
    Mean (±SD) ml/min
    ESRD at discharge (%)13.113.210.50.395
  • To convert creatinine clearance in ml/min to ml/s, multiply by 0.01667. AKI, acute kidney injury; RRT, renal replacement therapy; IRRT, intermittent renal replacement therapy; ICU, intensive care unit.