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APACHE II ICU Mortality Score Calculator

Sum APACHE II points → estimated ICU mortality risk.

Totals APACHE II acute physiology and chronic health points (entered from the standard lookup table) and estimates predicted ICU mortality using the logistic APACHE II model.

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Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

APACHE II total = Σ component points; mortality ≈ e^(−3.517 + 0.146×score) / (1 + e^(…))

In depth

Totals APACHE II acute physiology and chronic health points (entered from the standard lookup table) and estimates predicted ICU mortality using the logistic APACHE II model.