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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Clin Genet. 2019 Mar 15;95(5):575–581. doi: 10.1111/cge.13521

Table 1:

Comparison of clinical features in the present study vs. prior published studies in the literature

Present Study Miguet et al. 2018 Lim et al. 2017 Van Esch et al. 2005
Number of patients 48 59 56 13
Gender 43 male/5 female 59 male 49 male/7 female 13 male
Age at Diagnosis 4.16 years (50 months) 10 years (120 months) 36 months/male; 24 months/female NR
Age at Exam/self-report 9.01 years 11.7 years 7.9 years
Abnormal development in first 6 months of life 31/48 (65%) NR NR NR
Hypotonia 42/48 (88%) 57/58 (98.3%) 31/48 (64.6%) male; 4/7 (57.1%) female 12/12 (100%)
Recurrent Infections 27/48 (56%) 49/55 (89.1%) 38/49 (77.6%) males; 3/7 (42.9%) females 5/9 (55.6%)
Seizures 21/48 (43.8%) 35/59 (59.3%) 21/49 (42.9%) male; 3/6 (50.0%) female 4/9 (44.4%)
Constipation 39/48 (81%) 43/55 (78.2%) 39/49 (79.6%) 0/12 (0%)
Reflux 21/48 (44%) 34/51 (66.7%) 26/49 (53.1%) male; 3/7 (42.9%) female NR
Drooling 37/48 (77%) 40/50 (80.0%) NR NR
Vasomotor Disturbances 35/48 (73%) 15/31 (48.4%) NR NR
Breathing Disturbances 12/48 (25%) NR NR NR
Scoliosis and/or Kyphosis 9/48 (19% with scoliosis as a diagnosis) 23/43 (53.5%) - includes scoliosis and/or kyphosis 10/46 (21.7%) males; 0/5 (0%) female (scoliosis) NR
Anxiety 14/48 (29%) NR NR NR
Sleep problems 27/48 (43.8%) NR 13/48 (27.1%) male; 1/7 (14,3%) female NR
Bruxism 34/48 (71%) 33/46 (71.7%) 80% NR
Regression 12/48 (25%) 12/31 (38.7%) (post seizure onset) NR NR
High Pain Tolerance 32/48 (67%) 29/37 (78.4%) 25/50 (50.0%) NR
Low activity for age 29/48 (60%) NR NR NR
Irritability 28/48 (58%) NR NR NR
Early Death (before age 25 years) 2/48 (4%) 9/59 (15.3%) NR 6/11 (54.5%)