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Table 1 Demographics and cognitive and adaptive functioning across PWS + ASD versus PWS-only cases

From: Diagnoses and characteristics of autism spectrum disorders in children with Prader-Willi syndrome

  PWS + ASD PWS only T or X 2
M SD M SD
Age 11.77 (5.41) 11.04 (4.90) −0.58
BMI 24.58 (9.15) 24.94 (8.47) 0.16
% Male 72.2% 48.1% 6.22**
Genetic subtypes    13.31**
 Deletions N = 2 N = 74 N = 76
 mUPD N = 14 N = 41 N = 55
 Other N = 2 N = 13 N = 15
KBIT-2
 Verbal IQ 64.68 (14.50) 79.92 (15.58) 2.87***
 Nonverbal IQ 64.28 (20.09) 70.51 (17.22) 1.41
 Composite IQ 63.78 (20.34) 72.02 (16.19) 1.95*
VABS-2
 Communication 75.82 (11.23) 77.69 (14.68) 1.27
 Daily living skills 65.29 (10.48) 76.95 (17.26) 2.71***
 Socialization 65.44 (11.76) 76.09 (16.84) 2.45***
 Adaptive composite 64.68 (14.50) 75.33 (14.28) 2.79***
  1. *p < .05; **p <.01; ***p < 0.001. The two PWS + ASD cases in the other PWS genetic subtype category both had imprinting defects