Duchenne muscular dystrophy is the most common type of muscular dystrophy, with 6 out of 100,000 children diagnosed. Compared to other types of muscular dystrophy, Duchenne MD is often associated with a less favorable quality of life, especially for those children with limited mobility who need to use wheelchairs. Without aggressive care, they usually die in their late teens or early 20s from progressive heart muscle weakness, respiratory complications, or infection.