Table 6 Within syndrome associations of prevalence of anxiety symptomatology with chronological age, level of ability and severity of ASD symptomatology

Chronological age

χ²

p-value

Cramer’s V

χ²

p-value

Cramer’s V

< 18 years

≥18 years

< 18 years

≥18 years

 Agoraphobia

13 (50.00)

12 (52.17)

.023

1.000

.022

11 (78.57)

14 (63.64)

--^a

.467

--^b

 Separation anxiety

10 (40.00)

7 (30.43)

.479

.556

.100

5 (35.71)

5 (22.73)

--^a

.318

--^b

 Social anxiety

12 (46.15)

14 (60.87)

1.061

.229

.147

11 (78.57)

16 (72.73)

--^a

.506

--^b

 Specific phobias

19 (73.08)

18 (78.26)

.177

.466

.060

13 (92.86)

12 (54.55)

--^a

.025*

--^b

 Generalised anxiety

9 (34.62)

13 (56.52)

2.367

.105

.220

10 (71.43)

10 (45.45)

2.338

.176

.255

VABS-II ABC standard score

χ²

p-value

Cramer’s V

χ²

p-value

Cramer’s V

< 50

≥ 50

< 50

≥ 50

 Agoraphobia

14 (58.33)

10 (41.67)

3.021

.147

.251

11 (44.00)

14 (56.00)

--^a

1.000

--^b

 Separation anxiety

9 (56.25)

7 (43.75)

.869

.376

.136

5 (50.00)

5 (50.00)

--^a

.722

--^b

 Social anxiety

14 (56.00)

11 (44.00)

2.172

.161

.213

12 (44.44)

15 (55.56)

--^a

1.000

--^b

 Specific phobias

20 (55.56)

16 (44.44)

5.483

.042*

.338

10 (40.00)

15 (60.00)

--^a

.483

--^b

 Generalised anxiety

12 (57.14)

9 (42.86)

1.923

.244

.200

8 (40.00)

12 (60.00)

.350

.737

.100

SRS-2 total t-scores

χ²

p-value

Cramer’s V

χ²

p-value

Cramer’s V

< 75

≥ 75

< 75

≥ 75

 Agoraphobia

13 (44.83)

10 (55.56)

.512

.556

.104

12 (66.67)

12 (66.67)

--^a

.715

--^b

 Separation anxiety

7 (25.00)

8 (44.44)

1.885

.208

.202

3 (16.67)

6 (37.50)

--^a

.250

--^b

 Social anxiety

15 (51.72)

10 (55.56)

.065

1.000

.037

13 (72.22)

12 (75.00)

--^a

1.000

--^b

 Specific phobias

20 (68.97)

15 (83.33)

--^a

.324

--^b

12 (66.67)

11 (68.75)

.017

1.000

.022

 Generalised anxiety

13 (44.83)

8 (44.44)

.001

1.000

.005

10 (55.56)

9 (56.25)

.002

1.000

.008