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Table 1 Demographic information for participants with useable EEGs

From: Shifted phase of EEG cross-frequency coupling in individuals with Phelan-McDermid syndrome

  PMS (n = 26) TD (n = 15)
Sex 10 (M) 16 (F) 9 (M) 6 (F)
Collection site*
 Icahn School of Medicine at Mount Sinai 11 (42.3%) 10 (33%)
 Rush University Medical Center 8 (30.8%) 5 (67%)
 Boston Children’s Hospital 7 (26.9%) 0 (0%)
Net type
 Hydrocel 128 18 (69%) 10 (33%)
 Biosemi 32 8 (31%) 5 (67%)
Age (years) 9.5 ± 4.25 10.0 ± 2.39
ASD diagnosis
 ASD 11 (42%) 0 (0%)
 Non-ASD 14 (54%) 15 (100%)
 Unknown 1 (4%) 0 (0%)
ADOS
 Completed 22 (85%) 0 (0%)
 Comparison score 6.05 (2.54)
Vineland
 Completed 25 (96%) 0 (0%)
 Adaptive behavior composite standard score 52.8 ± 13.4
 Communication composite standard score 58.0 ± 14.6
SSP
 Completed 22 (85%) 3 (20%)
 Total score 143.9 ± 16.5 178.7 ± 17.1
RBS-R
 Completed 23 (88%) 0 (0%)
 Total score 16.26 ± 15.7
MSEL
 Completed 16 (61.5%) 0 (0%)
 NVIQ 19.98 ± 10.9
SB5
 Completed 9 (34.6%) 0 (0%)
 NVIQ 46.56 ± 7.5
DAS
 Completed 2 (7.7%) 0 (0%)
 NVIQ 73.50 ± .71
NVIQ
 Completed 25 (96%) 0 (0%)
 Non-verbal intelligence quotient 31.4 ± 17.9
Seizure history
 Yes 4 (15.4%)
 No 21 (80.8%)
 Unknown 1 (3.8%) 15 (100%)
SHANK3  
 Mutation 7 (26.9%)
 Deletion 19 (73.1%)
 Deletion size (mega base pairs) 3.95 ± 3.0
  1. Categorical variables (i.e. yes, no) are presented as the number in each category, followed by the percentage in each category. Continuous variables are presented as the mean value ± their standard deviation. *No EEGs from University of Texas Southwestern retained enough data after artifact rejection to be analyzed