mrs_9q_score: Modified Rankin Scale (mRS-9Q) Calculator

In cliot: Clinical Indices and Outcomes Tools

Modified Rankin Scale (mRS-9Q) Calculator

Description

Calculates the Modified Rankin Scale (mRS) score using the 9-question (mRS-9Q) logic. This tool determines the degree of disability in stroke patients by asking a hierarchical series of yes/no questions regarding functional independence.

Usage

mrs_9q_score(symptoms_present, able_usual_activities, able_own_affairs,
             able_walk_unassisted, able_bodily_needs)

Arguments

symptoms_present	Numeric (0 or 1). Does the patient have any symptoms? (1 = Yes).
able_usual_activities	Numeric (0 or 1). Is the patient able to carry out all usual duties and activities? (1 = Yes).
able_own_affairs	Numeric (0 or 1). Is the patient able to look after their own affairs without assistance? (1 = Yes).
able_walk_unassisted	Numeric (0 or 1). Is the patient able to walk without assistance? (1 = Yes).
able_bodily_needs	Numeric (0 or 1). Is the patient able to attend to their own bodily needs without assistance? (1 = Yes).

Value

A list containing:

mRS_Score	The calculated mRS score (Range 0-5).
Description	Clinical description of the disability level.

References

Bruno A, Akinwuntan AE, Lin C, et al. Simplified modified rankin scale questionnaire: reproducibility over the telephone and validation with quality of life. Stroke. 2011;42(8):2276-2279. doi:10.1161/STROKEAHA.111.613273

Examples

# Example 1: Slight Disability (mRS 2)
# Symptoms(1), Can't do usual(0), But handles affairs(1)
mrs_9q_score(1, 0, 1, 1, 1)

# Example 2: Severe Disability (mRS 5)
# Symptoms(1), No activities(0), No affairs(0), No walk(0), No bodily care(0)
mrs_9q_score(1, 0, 0, 0, 0)

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