mg_adl_score: Myasthenia Gravis Activities of Daily Living (MG-ADL)

Description

Calculates the MG-ADL score, an 8-item patient-reported scale assessing symptom severity and functional impact in Myasthenia Gravis. Each item is graded from 0 (normal) to 3 (severe), providing a total score ranging from 0 to 24. It correlates well with the Quantitative Myasthenia Gravis (QMG) score.

Usage

mg_adl_score(talking, chewing, swallowing, breathing, tooth_brushing,
             combing_hair, standing_from_chair, double_vision, eyelid_droop)

Value

A list containing:

MG_ADL_Score: The calculated total score (Range 0-24).
Interpretation: Clinical context regarding score changes.

Arguments

talking: Numeric (0-3). 0: Normal. 1: Intermittent slurring/nasal speech. 2: Constant slurring/nasal, but understandable. 3: Difficult to understand speech.
chewing: Numeric (0-3). 0: Normal. 1: Fatigue with solid food. 2: Fatigue with soft food. 3: Gastric tube.
swallowing: Numeric (0-3). 0: Normal. 1: Fatigue with some foods. 2: Incomplete swallowing/choking. 3: Gastric tube.
breathing: Numeric (0-3). 0: Normal. 1: SOB with exertion. 2: SOB at rest. 3: Ventilator dependence.
tooth_brushing: Numeric (0-3). Impairment of ability to brush teeth or comb hair (Note: MDCalc often separates these or groups arms; standard MG-ADL groups "Brushing teeth or combing hair" as one item. If inputs differ, map to the most severe). 0: None. 1: Extra effort, no rest periods. 2: Rest periods needed. 3: Cannot do.
combing_hair: Numeric (0-3). See above. Usually combined with tooth brushing in the standard 8-item scale.
standing_from_chair: Numeric (0-3). Arising from a chair. 0: Normal. 1: Uses arms. 2: Uses arms, multiple attempts. 3: Needs assistance.
double_vision: Numeric (0-3). 0: None. 1: Occurs, but not daily. 2: Daily, but not constant. 3: Constant.
eyelid_droop: Numeric (0-3). 0: None. 1: Occurs, but not daily. 2: Daily, but not constant. 3: Constant.

References

Wolfe GI, Herbelin L, Nations SP, et al. Myasthenia gravis activities of daily living profile. Neurology. 1999;52(7):1487-1489. doi:10.1212/wnl.52.7.1487

Examples

Run this code


# Example 1: Moderate Disease
# Slurred speech (1), Fatigue chewing solids (1), Occasional diplopia (1), others 0
# Score = 3
mg_adl_score(1, 1, 0, 0, 0, 0, 0, 1, 0)

# Example 2: Severe Disease
# Choking (2), SOB at rest (2), Cannot brush teeth (3), Constant ptosis (3)
# Score = 10
mg_adl_score(0, 0, 2, 2, 3, 3, 0, 0, 3)

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