sofa_score: Sequential Organ Failure Assessment (SOFA) Score

In cliot: Clinical Indices and Outcomes Tools

Sequential Organ Failure Assessment (SOFA) Score

Description

Calculates the SOFA score to track a patient's status during their stay in an intensive care unit (ICU). The score determines the extent of a person's organ function or rate of failure. It is based on six different scores, one each for the respiratory, cardiovascular, hepatic, coagulation, renal, and neurological systems.

Usage

sofa_score(pao2, fio2, mechanical_ventilation, platelets, bilirubin,
           mean_arterial_pressure, vasopressor_level, gcs, creatinine)

Arguments

pao2	Numeric. Partial pressure of oxygen in arterial blood (mmHg).
fio2	Numeric. Fraction of inspired oxygen (0.21 - 1.0 or 21 - 100).
mechanical_ventilation	Numeric (0 or 1). Is the patient on mechanical ventilation? (1 = Yes).
platelets	Numeric. Platelet count in x10^3/uL.
bilirubin	Numeric. Total bilirubin in mg/dL.
mean_arterial_pressure	Numeric. Mean Arterial Pressure in mmHg.
vasopressor_level	String. Level of vasopressor support. "none": No vasopressors. "low": Dopamine <= 5 or Dobutamine (any dose). "medium": Dopamine > 5, Epinephrine <= 0.1, or Norepinephrine <= 0.1. "high": Dopamine > 15, Epinephrine > 0.1, or Norepinephrine > 0.1.
gcs	Numeric. Glasgow Coma Scale score (3-15).
creatinine	Numeric. Serum creatinine in mg/dL.

Value

A list containing:

SOFA_Score	The total calculated SOFA score (Range 0-24).
Mortality_Estimate	Approximate in-hospital mortality risk based on initial score.
Organ_Scores	A breakdown of scores for each organ system.

References

Vincent JL, Moreno R, Takala J, et al. The SOFA (Sepsis-related Organ Failure Assessment) score to describe organ dysfunction/failure. On behalf of the Working Group on Sepsis-Related Problems of the European Society of Intensive Care Medicine. Intensive Care Med. 1996;22(7):707-710. doi:10.1007/bf01709751

Examples

sofa_score(80, 40, 1, 120, 1.5, 65, "medium", 13, 2.2)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.