Table 1.
Means (standard deviations, ranges) and sample sizes for key variables in the study in participants with high‐functioning autism spectrum disorders (hfASD) and typically developing (TD) controls
| hfASD | n | TD controls | n | |
|---|---|---|---|---|
| Participant characteristics | ||||
| Age | 12.8* (2.0,10–16) | 52 | 13.9* (1.9, 10–16) | 23 |
| IQ | 101.2*** (13.5, 76–138) | 52 | 117.7*** (9.1, 96–136) | 23 |
| SCQ | 23.2*** (6.4, 12–36) | 50 | 1.5*** (1.5, 0–6) | 23 |
| Irritability | ||||
| Parent‐reported | 7.6*** (3.0, 0–12) | 44 | 0.6*** (0.8, 0–3) | 20 |
| Self‐reported | 5.1* (3.1, 0–12) | 29 | 2.6* (1.7, 0–5) | 9 |
| Anxiety | ||||
| Parent‐reported | 33.9*** (19.0, 3–88) | 50 | 6.9*** (5.1, 0–24) | 23 |
| Self‐reported | 31.1*** (15.8, 3–72) | 50 | 12.0*** (6.4, 1–25) | 22 |
| Psychosocial stress test | ||||
| Subjective stress rating | ||||
| Before test | 2.0 (1.9, 1–9) | 46 | 1.6 (1.2, 1–6) | 23 |
| After test | 5.2 (2.6, 1–10) | 43 | 4.6 (2.2, 1–8) | 22 |
| log cortisol | ||||
| Before test | 1.4 (0.4, 0.6–2.4) | 52 | 1.4 (0.3, 0.7–2.0) | 23 |
| After test | 1.5** (0.4, 0.5–2.2) | 50 | 1.8** (0.5, 1.0–3.1) | 22 |
| Heart rate (bpm) | ||||
| Before test | 84.4** (11.1, 62.9–109.8) | 51 | 76.5** (9.2, 60.2–93.6) | 23 |
| During test | 89.3 (11.2, 67.1–120.8) | 50 | 87.0 (10.8, 66.6–103.9) | 22 |
| After test | 80.9** (11.2, 57.4–105.3) | 49 | 72.9** (9.1, 59.1–90.5) | 20 |
*p < .05; **p < .01; ***p < .001.