saps_3_score: Simplified Acute Physiology Score III (SAPS 3)

In cliot: Clinical Indices and Outcomes Tools

Simplified Acute Physiology Score III (SAPS 3)

Description

Calculates the SAPS 3 score and predicted hospital mortality for ICU patients. The score uses data available within 1 hour of ICU admission to assess severity of illness based on 20 variables covering patient characteristics, reasons for admission, and physiological derangement.

Usage

saps_3_score(age, admission_type, admission_source, length_of_stay_days,
             anatomical_system, infection_type, gcs_score, bilirubin_mg_dl,
             temperature_c, creatinine_mg_dl, heart_rate, wbc_count, ph_level,
             platelet_count, systolic_bp, mechanical_ventilation, pao2_fio2_ratio,
             vasoactive_drugs, comorbidities)

Arguments

age	Numeric. Patient age in years.
admission_type	String. "medical", "scheduled_surgical", or "unscheduled_surgical".
admission_source	String. "ward", "emergency_room", "other_icu", "other_hospital", or "operating_room".
length_of_stay_days	Numeric. Days in hospital prior to ICU admission.
anatomical_system	String. Primary system involved (e.g., "cardiovascular", "digestive", "neurologic", "respiratory", "renal", "hematologic", "metabolic", "trauma", "orthopedic", "gynecology", "other").
infection_type	String. "none", "respiratory", or "nosocomial".
gcs_score	Numeric. Lowest Glasgow Coma Scale score.
bilirubin_mg_dl	Numeric. Highest Total Bilirubin (mg/dL).
temperature_c	Numeric. Highest Body Temperature (Celsius).
creatinine_mg_dl	Numeric. Highest Serum Creatinine (mg/dL).
heart_rate	Numeric. Highest Heart Rate (bpm).
wbc_count	Numeric. Highest Leukocytes (x10^3/mm^3).
ph_level	Numeric. Lowest arterial pH.
platelet_count	Numeric. Lowest Platelet count (x10^3/mm^3).
systolic_bp	Numeric. Lowest Systolic Blood Pressure (mmHg).
mechanical_ventilation	Numeric (0 or 1). Is the patient mechanically ventilated?
pao2_fio2_ratio	Numeric. Ratio of PaO2 to FiO2 (if ventilated).
vasoactive_drugs	Numeric (0 or 1). Is the patient receiving vasoactive drugs?
comorbidities	Vector of strings. List of comorbidities: "cancer_therapy", "hematologic_cancer", "cirrhosis", "aids", "heart_failure_nyha4", "metastatic_cancer", "immunosuppression".

Value

A list containing:

SAPS_3_Score	The calculated SAPS 3 score.
Predicted_Hospital_Mortality	The estimated probability of hospital mortality percentage.

References

Moreno RP, Metnitz PG, Almeida E, et al. SAPS 3–From evaluation of the patient to evaluation of the intensive care unit. Part 2: Development of a prognostic model for hospital mortality at ICU admission. Intensive Care Med. 2005;31(10):1345-1355.

Examples

saps_3_score(
  age = 65,
  admission_type = "medical",
  admission_source = "emergency_room",
  length_of_stay_days = 1,
  anatomical_system = "respiratory",
  infection_type = "respiratory",
  gcs_score = 14,
  bilirubin_mg_dl = 0.8,
  temperature_c = 38.5,
  creatinine_mg_dl = 1.0,
  heart_rate = 110,
  wbc_count = 15,
  ph_level = 7.35,
  platelet_count = 250,
  systolic_bp = 100,
  mechanical_ventilation = 0,
  pao2_fio2_ratio = 300,
  vasoactive_drugs = 0,
  comorbidities = NULL
)

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