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. 2021 Oct 7;11:19922. doi: 10.1038/s41598-021-99496-2

Table 2.

SMN2 copy number and polymorphisms, treatment, and evolution of symptoms of SMA patients identified during the study period.

Id Sex SMN2 copy number SMN2 polymorphism Treatment Treatment initiation in days Phenotype at treatment start Sitter (in months) Walker (in months) Age at last assessment (in months) Max score on CHOP-INTEND scalec Max score on HINE 2 scaled
c.859G > C c.835‐44A > G
1 M 3 Negative Negative Nusinersen 32 Asymptomatic 7 13 33 64 26
2 F 2 Negative Negative Nusinersen 38 Areflexia, discrete hypotonia, 7 27 with help 32 58 24
3 M 3 Negative Negative OAb 41 Asymptomatic 7 15 24 64 24
4 M 2 / / OAb 54 Discrete hypotonia 6,5 Stand up alone 22 51 20
5 M 4 Negative Negative Nusinersen 49 Asymptomatic 6 12 22 64
6 F 4 Negative Negative Risdiplam 39 Asymptomatic 5 12 20 64 26
7 M 2 Negative Negative Nusinersen 29 Areflexia 6 No 18 60 17
8 M 2 Negative Negative Nusinersen 32 Areflexia 6 No 14 54
9 F 3 Negative Negative Nusinersen 30 Asymptomatic 7 11 12 62 21
10a M 2 / / Nusinersen 150 Proximal hypotonia, areflexia, tongue fasciculations No No 17 34 2

aCompound heterozygous patient identified at the age of 4 months.

bOnasemnogene abeparvovec-xioi.

cCHOP-INTEND maximum score is 64.

dHINE Sect. “Results” maximum score is 26.

A dash indicates that the test was not given.