Table 3.

Mutation Analysis Result Comparison Between Patients With Duchenne Muscular Dystrophy and Becker Muscular Dystrophy.^a

Distribution of Mutation	Duchenne Muscular Dystrophy		Becker Muscular Dystrophy
	No. of Cases	% of Cases (95% CI)	No. of Cases	% of Cases (95% CI)
Exon deletion	29	45.3 (33.7-57.4)	8	72.7 (43.4-90.3)
Exon duplication	6	9.4 (4.4-18.9)	1	9.1 (1.6-37.8)
Point mutation/small rearrangement	26	40.6 (29.5-52.9)	2	18.2 (5.1-47.7)
No mutation found	3	4.7 (1.6-12.9)	0	0
Total	64	100	11	100

^aSome of the value is zero and to make the analysis possible, 0.5 was added to each value for calculation.

Note. CI: confidence interval.