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Table 2 Initial symptoms in 44 patients with SURF1 deficiency

From: SURF1 deficiency: a multi-centre natural history study

Initial symptoms Number of patients (%) Age range of initial presentation (months)
poor feeding/vomiting 20 (46) 0-24
poor weight gain 19 (43) 1.5-20
developmental delay 10 (23) 9-51
hypotonia 9 (21) 0-10
movement disorder 3 (7) 10-24
developmental regression 3 (7) 10-18
ataxia 2 (5) 14-60