What does the MDAAT assess?

The MDAAT has two components: the Myositis Disease Activity Assessment VAS (MYOACT), which scores 6 organ systems (constitutional, cutaneous, skeletal, GI, pulmonary, and cardiac activity on 0–10 VAS), and the Myositis Intention to Treat Activity Index (MITAX) for presence/absence of organ activity.

How are extramuscular manifestations scored?

The MYOACT scores each extramuscular domain on a 0–10 VAS where 0=inactive and 10=most active ever. The physician also scores overall disease activity on a 0–10 VAS. Scores correlate with muscle enzymes and functional outcomes.

Myositis Disease Activity Assessment

Assess disease activity in inflammatory myopathies (dermatomyositis, polymyositis, IBM) using the Myositis Disease Activity Assessment Tool (MDAAT), covering extramuscular and muscular activity.

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Frequently Asked Questions

What does the MDAAT assess?

How are extramuscular manifestations scored?