cliot (version 1.0.0)

mulbsta_score: MuLBSTA Score for Viral Pneumonia Mortality

Description

Calculates the MuLBSTA score to predict 90-day mortality in patients with viral pneumonia. The score uses six clinical and laboratory variables: Multilobular infiltration, Lymphocytes, Bacterial coinfection, Smoking history, hypertension, and Age.

Usage

mulbsta_score(multilobular_infiltration, lymphocyte_count, bacterial_coinfection,
              smoking_history, hypertension_history, age)

Value

A list containing:

MuLBSTA_Score

The calculated total score (Range 0-20).

Risk_Category

Classification (Low Risk <= 11, High Risk >= 12).

Mortality_Risk_90_Day

Estimated 90-day mortality risk.

Arguments

multilobular_infiltration

Numeric (0 or 1). Presence of multilobular infiltrates on chest imaging. (1 = Yes, +5 points).

lymphocyte_count

Numeric. Absolute lymphocyte count in x10^9/L. (<= 0.8 x 10^9/L adds +4 points).

bacterial_coinfection

Numeric (0 or 1). Presence of bacterial co-infection. (1 = Yes, +4 points).

smoking_history

Numeric (0 or 1). History of smoking (current or former). (1 = Yes, +3 points).

hypertension_history

Numeric (0 or 1). History of hypertension. (1 = Yes, +2 points).

age

Numeric. Patient age in years. (>= 60 years adds +2 points).

References

Guo L, Wei D, Zhang X, et al. Clinical Features Predicting Mortality Risk in Patients With Viral Pneumonia: The MuLBSTA Score. Front Microbiol. 2019;10:2752. doi:10.3389/fmicb.2019.02752

Examples

# Example 1: High Risk
# Multilobular (+5), Lymphocytes 0.5 (+4), Age 65 (+2), Smoker (+3)
# Score = 14
mulbsta_score(1, 0.5, 0, 1, 0, 65)

# Example 2: Low Risk
# Unilobular (0), Lymphocytes 1.5 (0), No bacteria, No smoker, HTN (+2), Age 50
# Score = 2
mulbsta_score(0, 1.5, 0, 0, 1, 50)