Table 1.
Baseline (T0) and follow-up (T1) diagnosis categories by age classes.
| a. (T0) | Age Classes | Total | ||||
|---|---|---|---|---|---|---|
| 18–24 Months | 25–36 Months | 37–48 Months | ||||
| Baseline Diagnosis | STS | Counting | 2 | 5 | 1 | 8 |
| T0-diagnosis % | 25.0% | 62.5% | 12.5% | 100.0% | ||
| Age classes % | 4.0% | 5.8% | 9.1% | 5.4% | ||
| Total % | 1.4% | 3.4% | 0.7% | 5.4% | ||
| ASD | Counting | 33 | 31 | 4 | 68 | |
| T0-diagnosis % | 48.5% | 45.6% | 5.9% | 100.0% | ||
| Age classes % | 66.0% | 36.0% | 36.4% | 46.3% | ||
| Total % | 22.4% | 21.1% | 2.7% | 46.3% | ||
| AD | Counting | 15 | 50 | 6 | 71 | |
| T0-diagnosis % | 21.1% | 70.4% | 8.5% | 100.0% | ||
| Age classes % | 30.0% | 58.1% | 54.5% | 48.3% | ||
| Total % | 10.2% | 34.0% | 4.1% | 48.3% | ||
| b. (T1) | ||||||
| Follow up Diagnosis | STS | Counting | 19 | 22 | 4 | 45 |
| T1-diagnosis % | 42.2% | 48.9% | 8.9% | 100.0% | ||
| Age classes % | 38.0% | 25.6% | 36.4% | 30.6% | ||
| Total % | 12.9% | 15.0% | 2.7% | 30.6% | ||
| ASD | Counting | 17 | 34 | 3 | 54 | |
| T1-diagnosis % | 31.5% | 63.0% | 5.6% | 100.0% | ||
| Age classes % | 34.0% | 39.5% | 27.3% | 36.7% | ||
| Total % | 11.6% | 23.1% | 2.0% | 36.7% | ||
| AD | Counting | 14 | 30 | 4 | 48 | |
| T1-diagnosis % | 29.2% | 62.5% | 8.3% | 100.0% | ||
| Age classes % | 28.0% | 34.9% | 36.4% | 32.7% | ||
| Total % | 9.5% | 20.4% | 2.7% | 32.7% | ||
| Total | Counting | 50 | 86 | 11 | 147 | |
| Age classes % | 100.0% | 100.0% | 100.0% | 100.0% | ||
| Total % | 34.0% | 58.5% | 7.5% | 100.0% | ||
Note: T0 = Time 0 (Baseline data collection), T1 = Time 1 (1-year follow-up data collection), AD = Autistic Disorder, ASD = Autism Spectrum Disorder, STS = Sub-Threshold Symptoms.