Table 1.

Clinical and laboratory findings

Patient	Age of onset	Initial presentation	Initial diagnosis	Disease course	Other involvement	CK (IU/l) (first visit)
P1	10 m	Motor delay	CMD	Chronic	Nil	352–918
P2	3 y	Difficulty in climbing stairs, muscle pain	IM	Chronic	Nil	6175
P3	5 y	High CK with motor clumsiness	IM	Subacute	Nil	5453
P4	6 y	Asymptomatic high CK	MD	Chronic	Nil	6391
P5	7 y	Slow runner	IM	Chronic	Nil	5460
P6	10 y	Fatigue, skin rash	IM	Subacute	Fatigue, skin rash	10 891
P7	11 y	Fatigue, skin rash	DM	Subacute	Fatigue, skin rash	7508
P8	13 y	Difficulty in pedalling and climbing stairs	MD	Chronic	Nil	7183
P9	9 y	Difficulty in climbing stairs	MD	Subacute	Nil	9570

CK: creatine kinase; CMD: congenital muscular dystrophy; F: female; IM: inflammatory myopathy; M: male; MD: muscular dystrophy; m: months; y: years.