das28_esr_rheumatoid_arthritis: Disease Activity Score-28 for Rheumatoid Arthritis...

In cliot: Clinical Indices and Outcomes Tools

Disease Activity Score-28 for Rheumatoid Arthritis (DAS28-ESR)

Description

Calculates the DAS28-ESR score, a standardized index of disease activity in Rheumatoid Arthritis. The score is calculated using the tender joint count (28 joints), swollen joint count (28 joints), Erythrocyte Sedimentation Rate (ESR), and the patient's global assessment of health. It stratifies patients into Remission, Low, Moderate, or High disease activity.

Usage

das28_esr_rheumatoid_arthritis(tender_joint_count, swollen_joint_count,
                               esr_mm_hr, patient_global_health)

Arguments

tender_joint_count	Numeric (0-28). Number of tender joints identified during examination.
swollen_joint_count	Numeric (0-28). Number of swollen joints identified during examination.
esr_mm_hr	Numeric. Erythrocyte Sedimentation Rate in mm/hr.
patient_global_health	Numeric (0-100). Patient's global assessment of health on a visual analog scale (0 = best/no activity, 100 = worst/highest activity).

Value

A list containing:

DAS28_ESR_Score	The calculated disease activity score.
Disease_Activity	Classification (Remission < 2.6, Low 2.6-3.2, Moderate 3.2-5.1, High > 5.1).

References

Prevoo ML, van 't Hof MA, Kuper HH, et al. Modified disease activity scores that include twenty-eight-joint counts. Development and validation in a prospective longitudinal study of patients with rheumatoid arthritis. Arthritis Rheum. 1995;38(1):44-48.

Examples

# Example 1: High Disease Activity
# 12 tender, 10 swollen, ESR 60, Global Health 70
das28_esr_rheumatoid_arthritis(12, 10, 60, 70)

# Example 2: Remission
# 0 tender, 0 swollen, ESR 10, Global Health 10
das28_esr_rheumatoid_arthritis(0, 0, 10, 10)

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