Table 1

Demographic details and CK, CKMB, skeletal and cardiac Troponin I values in patients with polymyositis and dermatoyositis

Case Sex Age Race Diagnosis CK (U/l) CKMB (μg/l) sTnI (μg/l) cTnI (μg/l)
1F50WPM891.3<1.60.1
2F74WPM1032
3M75A-JDM1173.54.71.39
4M46WPM1232.51.60.03
5F56APM1722.1<1.60.03
6F30A-CPM2130.81.60.03
7F54APM2271.8<1.60.03
8F34WPM2315.13.40.03
9F56IDM3334.83.30.03
10M24WDM41317.910.40.08
11F63A-CPM45612.68.20.03
12M25WPM73418.5
13F72WPM208913217.50.03
14F27IPM216511839900.03
15M40A-CDM834129473.6<0.01
16F45WDM1.7<1.6<0.01
  • sTnI: skeletal Troponin I, cTnI: cardiac Troponin I, M: male, F: female, DM: dermatomyositis, PM: polymyositis, A: African, A-C: Afro-Caribbean, A-J: Anglo-Japanese, W: white, I: Indian. Reference ranges: CK 30–250 U/l (male), 30–180 U/l (female), CKMB <5 μg/l, sTnI <7.5 μg/l, cTnI <0.1 μg/l.