Web calculator for ACR/EULAR Criteria for Minimal, Moderate, and Major Clinical Response in Juvenile Dermatomyositis

Enter a complete set of IMACS or PRINTO core set measures for calculation of the Total Improvement Score.

IMACS
The Myositis Response Criteria was validated using all 6 IMACS core set measures.
At a minimum, you must enter:
1. Physician Global Disease Activity AND
3a. Manual Muscle Testing AND
at least 2 other IMACS core set measures in order for an IMACS Total Improvement Score to be calculated.

PRINTO
The Myositis Response Criteria was validated using all 6 PRINTO core set measures.
At a minimum, you must enter:
1. Physician Global Disease Activity AND
3b. Childhood Myositis Assessment Score AND
at least 2 other PRINTO core set measures in order for an PRINTO Total Improvement Score to be calculated.
Core Set Measure BASELINE FOLLOW-UP Change Relative
%
Change		 Absolute
%
Change		 IMACS
Improvement Score		 PRINTO
Improvement Score
1.    Physician Global Disease Activity [0.0-10.0 cm] (IMACS & PRINTO)
2.    Parent Global Disease Activity [0.0-10.0 cm] (IMACS & PRINTO)
3a.  Manual Muscle Testing (MMT) (IMACS) Maximum MMT Score Possible:
3b.  Childhood Myositis Assessment Score (CMAS) [0-52] (PRINTO)
4.    Childhood Health Assessment Questionnaire (CHAQ) [0.000-3.000] (IMACS & PRINTO)
5a.  Extra-muscular Disease Activity [0.0-10.0 cm] (IMACS)
5b. Disease Activity Score (DAS) [0.0-20.0] (PRINTO)
6a.  Physical Summary Score of the Child Health Questionnaire - Parent Form 50 (CHQ-PhS) [-10-70] (PRINTO)
6b.  Muscle Enzymes (IMACS)
Please select the UNITS first, and then enter each serum muscle enzyme
level tested and the associated upper limit of normal.		 Upper Limit of
Normal		 BASELINE FOLLOW-UP

Creatine Kinase (CK)
Lactate Dehydrogenase (LDH)
Aspartate Aminotransferase (AST)
Alanine Aminotransferase (ALT)
Aldolase
Calculate Most Abnormal Muscle Enzyme
No Improvement Threshold

IMACS Total Improvement Score:

PRINTO Total Improvement Score:
Minimal Improvement Threshold
Moderate Improvement Threshold
Major Improvement Threshold
   Calculate Total Improvement Score