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. 2024 Nov 26;19:438. doi: 10.1186/s13023-024-03429-x

Table 2.

Summary of cohort characteristics as presented during the conference

Korea Turkey/ India USA India
Publication Park et al. 20161 Park et al. 2017a4 Park et al. 2017b2 Mrocek et al. 202010 Farid et al. 202313 Baskar et al. 20249 Baskar and Atchayaram, unpublished
ID 1 2 3 4 5 6 7 8 9 1 2 1 2 3 1 2 3 4 5 6 7 8 9
Sex M M M F F M M F M M F M F M F M F M F F M F M
Variants a, b a, b a, b a, b a, b a, b a, b a, b a, c d, d a, a a, a a, a a, a a, a a, a e, e a, a a, a a, a a, a a, a a, a
Age at onset 15 13 13 13 8 5 7 7 6 18 5 1 3 17 7 10 13 17 1 13 5 28 17
Disease duration 16 17 15 10 7 24 25 30 28 16 13 13 16 46 12 5 11 10 2 5 34 4 48
Clinical presentation
Diffuse muscle weakness + + + + + + + +
Ankle dorsiflexor weakness + + + + +
Distal muscle weakness + + + + + +
Proximal muscle weakness/atrophy (quadriceps) + + + + + + + + + + + + +
Generalised muscle atrophy +
Tripping + +
Facial muscle involvement + + + + + + + + + + + + + + + + +
Serum creatine kinase IU/L, mean SD range 365 271 250 493 281 420 431 108 493 960–1850 150–1410 150 123 129 1564 932 221
Muscle histopathology
Rimmed vacuoles + + + + + +
Chronic myopathy/necrosis + + + +
Internalised nuclei + +
Nemaline rods + +
Fibre size variation + + +
Scattered hyaline fibres +
Intracellular lipid vacuoles + +
Polyglucosan aggregates +
Ragged red fibres +
Cytochrome c oxidase deficiency +
Congenital fibre type disproportion +

Key: ac.910G > A/ c.781G > A, bc.1048delA/c.919delA, cc.1220T > C, dc.898G > A, ec.794G > A; + denotes symptoms and histopathologies