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Table 1 The general and clinical characteristics of children in the retrospective study

From: New multiplex real-time PCR approach to detect gene mutations for spinal muscular atrophy

General and clinical characteristics N (%)
All children 141 (100 %)
Gender
 Boy 88 (62.41)
 Girl 53 (37.59)
Age
  < 6 m 60 (42.55)
 7-18 m 45 (31.91)
  > 18 m 36 (25.53)
Clinical characteristics
 Congenital heart disease 11 (7.80)
 Respiratory failure 14 (9.93)
 Muscular atrophy 38 (26.95)
 EMG abnormalities 117 (82.98)
 Disorder on sitting/standing/walking 64 (45.39)/39 (27.66)/29 (20.57)
Prenatal
 Ultrasonography abnormalities 3 (2.13)
 Decreased fetal movement 6 (4.26)
Creatine kinase value
 Normal 50 (35.46)
 Elevation 91 (64.54)
Diseases
 SMA 75
 DMD/BMD 59
 ME 6
 CMT 1