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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Res Dev Disabil. 2014 Jun 26;35(10):2403–2415. doi: 10.1016/j.ridd.2014.06.010

Table 2. Percentage of Williams Syndrome and Typical Developing Participants with the Presence of BSI Anxiety Symptoms (N=54).

Williams
Syndrome
Typical Development
No Yes No Yes z
Nervousness or shakiness (A) 54.17 45.83 63.33 36.67 0.94
Scared without reason (A) 83.33 16.67 96.67 3.33 1.59
Fearful (A) 54.17 45.83 76.67 23.33 1.78
Tense or keyed up (A) 50.00 50.00 73.33 26.67 2.12*
Spells of terror or panic (A) 83.33 16.67 100.00 0.00 2.30*
Restless (A) 66.67 33.33 73.33 26.67 0.80
Afraid in open spaces or streets (P) 83.33 16.67 93.33 6.67 1.20
Afraid to travel on buses, subways,
 trains (P)
75.00 25.00 100.00 0.00 2.87**
Avoid things, places, activities
 because of fear (P)
58.33 41.67 100.00 0.00 3.86**
Uneasy in crowds (P) 83.33 16.67 93.33 6.67 1.15
Nervous when left alone (P) 70.83 29.17 100.00 0.00 3.14**

(P) = Phobic Anxiety

(A) = Anxiety

*

p < .05

**

p < .01