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Table 1 Factors independently associated with 28-day mortality

From: Influence of dyskalemia at admission and early dyskalemia correction on survival and cardiac events of critically ill patients

 aHR95% CIp value
Potassium level at admission
 Serious hypokalemia (K+ < 2.5 mmol/L)1.2860.899–1.8400.17
 Moderate hypokalemia (2.5 ≤ K+ < 3 mmol/L)1.1180.904–1.3840.30
 Mild hypokalemia (3 ≤ K+ < 3.5 mmol/L)1.0280.909–1.1640.66
 No dyskalemia (3.5 ≤ K+ ≤ 5 mmol/L)1Ref0.01
 Mild hyperkalemia (5 < K+ ≤ 6 mmol/L)1.2901.133–1.4690.01
 Moderate hyperkalemia (6 < K+ ≤ 7 mmol/L)1.0510.822–1.3430.69
 Serious hyperkalemia (K+ > 7 mmol/L)1.1190.729–1.7190.61
Renal replacement therapy on day 1 or on day 21.3371.184–1.510< 0.01
Age > 60 years1.8671.695–2.057< 0.01
Underlying disease
 Cardiac1.3551.211–1.516< 0.01
 Immunosuppression1.3661.221–1.528< 0.01
Admission category, medical1.3041.156–1.471< 0.01
Main symptom admission
 Shock and multiple organ failure1.9251.635–2.267< 0.01
 Acute respiratory failure and COPD exacerbation1.6461.392–1.945< 0.01
 Acute renal failure1.2380.947–1.6180.12
 Coma2.3371.960–2.787< 0.01
 Trauma, monitoring, scheduled surgery1Ref< 0.01
SOFA score without points for renal failure1.2141.198–1.230< 0.01
  1. Abbreviations: COPD chronic obstructive pulmonary disease, SOFA Sequential Organ Failure Assessment
  2. Adjusted hazard ratio (aHR) on age above 60 years, chronic illness (cardiac, renal and immune-depression), main cause of admission, SOFA without renal score and medical critical disease and 95% confidence intervals (95% CI)