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Table 1 demographics details of the sham group and of NH infants subgroup

From: Longitudinal natural history of type I spinal muscular atrophy: a critical review

 NH DATAPLACEBO
Number of patients(n)2241
Age at baseline
Mean (days)154181
Range (days)30–21030–262
CHOP INTEND scores(mean + SD)27.36 + 8,5428.42 + 7.56
CHOP INTEND < 20n/tot (%)4/22 (18%)4/41 (10%)
CHOP INTEND 20–40n/tot (%)16/22 (73%)34/41 (83%)
CHOP INTEND > 40n/tot (%)2/22 (9%)3/41 (7%)