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Table 2 MIPQ, RBQ and TAQ subscale/total score medians and interquartile ranges (excluding verbal subscales)

From: Prospective study of autism phenomenology and the behavioural phenotype of Phelan–McDermid syndrome: comparison to fragile X syndrome, Down syndrome and idiopathic autism spectrum disorder

Measure

Median scores (interquartile range)

Kruskal–Wallis test

Post hoc < .01

PMS

FraX

DS

Idiopathic ASD

df

K

p valuea

 

MIPQ-S

 Mood

20.00

(17.75–21.25)

21.00

(19.75–21.18)

22.00

(19.75–22.25)

17.00

(16.00–21.00)

3

22.26

< .001

FraX, DS > ASD

 Interest and Pleasure

16.00

(12.88–20.00)

18.00

(13.00–19.25)

20.00

(17.75–22.00)

12.00

(8.75–15.25)

3

27.53

< .001

DS > ASD

 Total score

36.00

(31.75–41.00)

39.00

(31.75–42.00)

41.00

(38.75–44.00)

29.50

(25.00–35.25)

3

30.34

< .001

PMS, DS, FraX > ASD, DS > PMS

RBQ

 Stereotyped behaviour

7.50

(5.75–12.00)

9.00

(7.37–12.00)

0.50

(0.00–6.50)

9.50

(6.00–12.00)

3

24.84

< .001

PMS, ASD, FraX > DS

 Compulsive behaviour

0.00

(0.00–4.50)

6.00

(0.00–9.00)

0.00

(0.00–3.25)

6.00

(3.50–15.25)

3

21.81

< .001

ASD > DS, PMS

 Insistence on sameness

0.00

(0.00–2.50)

4.00

(3.00–7.25)

0.00

(0.00–2.25)

4.00

(2.00–6.00)

3

30.45

< .001

ASD, FRaX > DS, PMS

 Total score

12.00

(7.75–19.75)

29.50

(22.50–36.25)

10.50

(4.00–15.25)

25.00

(16.00–32.50)

3

39.44

< .001

ASD, FRaX > DS, PMS

TAQ

 Impulsivity

16.50

(12.00–20.25)

20.72

(15.75–23.25)

12.00

(7.75–18.25)

20.00

(16.50–23.00)

3

18.22

< .001

ASD, FraX > DS

 Overactivity

19.00

(12.75–25.25)

24.00

(12.75–32)

9.50

(6.00–23.25)

20.50

(15.75–30.00)

3

14.54

.002

ASD, FraX > DS

 Total score

37.00

(26.50–45.25)

48.50

(32.00–59.25)

23.00

(17.00–41.75)

50.00

(33.25–53.75)

3

17.45

.001

ASD, FraX > DS

  1. aSignificant differences (p < .01) are indicated in italics