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Table 3 Comparisons of mean RBS-R domain and total scores in children with PWS + ASD versus PWS only

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

RBS-R domains

PWS + ASD

PWS only

t, p

Sameness/rituals

17.71 (7.32)

13.85 (5.75)

−2.24*

Stereotypies

6.65 (3.71)

3.61 (3.22)

−3.44***

Self-injurious behaviors

4.23 (2.25)

5.05 (3.22)

0.504

Compulsions

13.00 (6.44)

9.12 (5.30)

−2.37*

Restricted interests

4.80 (3.27)

2.21 (2.00)

−4.13***

Total

45.71 (16.85)

33.89 (15.41)

−2.92**

  1. *p < 0.05; **p < 0.01; ***p < 0.001