|
Demographic characteristic
|
Age group
|
ASD (N = 65)
|
Control (N = 43)
|
|---|
|
Age group (n, %)
|
6-11
|
26 (40)
|
15 (35)
|
|
12-18
|
23 (35)
|
12 (28)
|
|
19+
|
16 (25)
|
16 (37)
|
|
Total
|
65
|
43
|
|
Age in years
|
6-11
|
9.4 (1.4)
|
9.0 (1.6)
|
|
12-18
|
14.0 (1.8)
|
14.1 (2.0)
|
|
19+
|
26.3 (7.4)
|
26.1 (5.1)
|
|
Total
|
15.2 (7.7)
|
16.8 (8.3)
|
|
Gender (% male)
|
6-11
|
73
|
73
|
|
12-18
|
87
|
67
|
|
19+
|
88
|
81
|
|
Total
|
82
|
74
|
|
Full scale IQ
|
6-11
|
100 (17)*
|
113 (15)
|
|
12-18
|
94 (19)*
|
107 (15)
|
|
19+
|
102 (18)
|
110 (8)
|
|
Total
|
98 (18)**
|
110 (13)
|
|
Verbal IQ
|
6-11
|
99 (16)**
|
116 (19)
|
|
12-18
|
93 (22)*
|
110 (16)
|
|
19+
|
109 (22)
|
109 (13)
|
|
Total
|
99 (21)
|
106 (12)
|
|
Nonverbal IQ
|
6-11
|
102 (18)
|
109 (16)
|
|
12-18
|
99 (19)
|
98 (10)
|
|
19+
|
100 (22)
|
109 (8)
|
|
Total
|
100 (20)
|
106 (12)
|
|
ADOS Total†
|
6-11
|
12.6 (5.7)
| |
|
12-18
|
10.7 (3.4)
| |
|
19+
|
9.8 (4.1)
| |
|
Total
|
11.2 (4.7)
| |
|
ADI social total
|
6-11
|
19.9 (5.8)
| |
|
12-18
|
21.5 (4.9)
| |
|
19+
|
17.8 (6.9)
| |
|
Total
|
20.0 (5.8)
| |
|
ADI communication total
|
6-11
|
16.2 (4.6)
| |
|
12-18
|
16.9 (4.4)
| |
|
19+
|
13.3 (5.8)ª
| |
|
Total
|
15.8 (4.9)
| |
|
ADI repetitive behavior total
|
6-11
|
6.5 (2.6)
| |
|
12-18
|
5.9 (2.4)
| |
|
19+
|
4.8 (2.0)
| |
| |
Total
|
5.9 (2.4)
| |
- Means (SDs) are presented for age and IQ.
- *P <0.05; ** P <0.01.
- †ADOS totals are based on revised algorithms [61] except for those participants (n = 22) who completed Module 4.
- ªParticipants with ASD in the 19 years of age and older age band have significantly lower ADI Communication Total scores than those in the 12 to 18-years-old age band (P = 0.040).
- ASD, autism spectrum disorder; IQ, intelligence quotient; ADOS, Autism Diagnostic Observation Scale; ADI, Autism Diagnostic Interview-Revised.
