Table 1

Overview of the diagnostic pathway in Duchenne muscular dystrophy (DMD) for boys diagnosed in Newcastle

(n=20)First symptomsFirst presentation to a health professionalCK testDiagnosis DMD
Mean age in months (years)32.5 (2.7)42.9 (3.6)50.1 (4.2)51.7 (4.3)
Range in months8–7210–9014–9110–91
  • Mean age (in months and years) at each step in the pathway for boys with DMD without a family history of the condition.

  • CK, creatine kinase.