Table 5. Bayley-III Language and Cognitive assessment of infants and young boys with DMD (n=24).

Both receptive and expressive language means were significantly lower than normal children. The language composite score combines these two scaled scores.

Subtest	Normal	DMD	t test and p value
Language Receptive Scaled Score	10±3	7.0±1.6 (2–14)	t=−5.98 (p=<.0001)
Language Expressive Scaled Score	10±3	8.0± 2.3 (3–18)	t=−3.01 (p=.005)
Language Composite	100±15	85.8±9.9 (5–135)	t=−4.42 (p=.0001)
Cognitive Composite	100±15	89.5±8.7 (65–115)	t=−4.36 (p=.0001)