cliot (version 1.0.0)

rse_asthma_score: Risk Score for Asthma Exacerbation (RSE)

Description

Calculates the Risk Score for Asthma Exacerbation (RSE) to predict the likelihood of an asthma exacerbation within the next 6 months. The score is derived from 5 clinical variables: BMI, ACQ-5 score, Post-bronchodilator FEV1, Rescue inhaler use, and GINA treatment step.

Usage

rse_asthma_score(bmi_ge_30, acq5_score, fev1_percent_predicted,
                 rescue_inhaler_uses_per_day, gina_step_4_or_higher)

Value

A list containing:

RSE_Score

The calculated total score (Range 0-100).

Risk_Category

Estimated risk level for exacerbation within 6 months.

Arguments

bmi_ge_30

Numeric (0 or 1). Is BMI >= 30 kg/m^2? (1 = Yes, +14 points).

acq5_score

Numeric. Asthma Control Questionnaire-5 (ACQ-5) Score. (<1.5: 0 pts, 1.5-2.49: +7 pts, >=2.5: +13 pts).

fev1_percent_predicted

Numeric. Post-bronchodilator FEV1 (

rescue_inhaler_uses_per_day

Numeric. Average rescue inhaler usage per day. (<2: 0 pts, 2-3.9: +11 pts, >=4: +26 pts).

gina_step_4_or_higher

Numeric (0 or 1). Is the patient on GINA treatment step 4 or higher (e.g., medium/high dose ICS/LABA)? (1 = Yes, +27 points).

References

Bateman ED, et al. Development and validation of a novel risk score for asthma exacerbations: The risk score for exacerbation. J Allergy Clin Immunol. 2015;135(6):1457-1464.e4. doi:10.1016/j.jaci.2014.12.1915

Examples

# Example 1: High Risk
# BMI 32 (+14), ACQ 3.0 (+13), FEV1 70% (+20), Rescue 5/day (+26), GINA 4 (+27)
# Score = 100
rse_asthma_score(1, 3.0, 70, 5, 1)

# Example 2: Low Risk
# BMI 25 (0), ACQ 0.5 (0), FEV1 95% (0), Rescue 0 (0), GINA 2 (0)
# Score = 0
rse_asthma_score(0, 0.5, 95, 0, 0)