cliot (version 1.0.0)

saps_ii_score: Simplified Acute Physiology Score II (SAPS II)

Description

Calculates the SAPS II score and predicted hospital mortality for patients admitted to the ICU. The score uses 17 variables: 12 physiological variables, age, type of admission, and three underlying disease variables.

Usage

saps_ii_score(age, heart_rate, systolic_bp, temperature_c,
              mechanical_ventilation_cpap, pao2, fio2, urine_output_24h_l,
              bun, wbc_count, potassium, sodium, bicarbonate, bilirubin,
              gcs, admission_type, chronic_diseases = NULL,
              bun_units = "mg/dL", bilirubin_units = "mg/dL")

Value

A list containing:

SAPS_II_Score

The calculated SAPS II score.

Predicted_Hospital_Mortality

The estimated probability of hospital mortality percentage.

Arguments

age

Numeric. Patient age in years.

heart_rate

Numeric. Worst heart rate in the first 24 hours (bpm).

systolic_bp

Numeric. Worst systolic blood pressure in the first 24 hours (mmHg).

temperature_c

Numeric. Worst body temperature in the first 24 hours (Celsius).

mechanical_ventilation_cpap

Numeric (0 or 1). Is the patient on mechanical ventilation or CPAP? (1 = Yes).

pao2

Numeric. PaO2 in mmHg (only used if ventilated).

fio2

Numeric. FiO2 percentage or fraction (e.g., 50 or 0.5) (only used if ventilated).

urine_output_24h_l

Numeric. Urine output in Liters per 24 hours.

bun

Numeric. Blood Urea Nitrogen level.

wbc_count

Numeric. White Blood Cell count (x10^3/mm^3).

potassium

Numeric. Serum Potassium level (mmol/L).

sodium

Numeric. Serum Sodium level (mmol/L).

bicarbonate

Numeric. Serum Bicarbonate level (mEq/L).

bilirubin

Numeric. Total Bilirubin level.

gcs

Numeric. Glasgow Coma Scale score (3-15).

admission_type

String. "scheduled_surgical", "medical", or "unscheduled_surgical".

chronic_diseases

Vector of strings. List of comorbidities: "aids", "hematologic_malignancy", "metastatic_cancer".

bun_units

String. "mg/dL" (default) or "mmol/L".

bilirubin_units

String. "mg/dL" (default) or "umol/L".

References

Le Gall JR, Lemeshow S, Saulnier F. A new Simplified Acute Physiology Score (SAPS II) based on a European/North American multicenter study. JAMA. 1993;270(24):2957-2963. doi:10.1001/jama.1993.03510240069035

Examples

saps_ii_score(
  age = 65, heart_rate = 130, systolic_bp = 90, temperature_c = 39.0,
  mechanical_ventilation_cpap = 1, pao2 = 70, fio2 = 50, urine_output_24h_l = 0.8,
  bun = 35, wbc_count = 18, potassium = 4.0, sodium = 135, bicarbonate = 18,
  bilirubin = 1.0, gcs = 10, admission_type = "medical",
  chronic_diseases = c("metastatic_cancer")
)