Table 2.
Rate of symptoms by age (child versus adult) for first visit and lifetime
| Section | Symptom | Total rate (%) | Child rate (%) | Adult rate (%) | Child versus adult χ2 (p value)a,b |
Lifetime frequencyc (%) |
|---|---|---|---|---|---|---|
| Section 3 | Anxiety | 52.5 | 43.3 | 68.0 | 38.27 (<0.0001) * | 53.0 |
| Depressed mood | 30.2 | 17.0 | 52.4 | 93.00 (<0.0001) * | 31.0 | |
| Extreme shyness | 21.6 | 19.6 | 24.8 | 2.48 (0.11) | 21.9 | |
| Mood Swings | 52.4 | 47.8 | 60.0 | 9.26 (0.002) * | 52.7 | |
| Aggressive outburst | 42.1 | 40.9 | 44.0 | 0.61 (0.43) | 43.3 | |
| Temper tantrums | 42.5 | 48.6 | 32.4 | 16.73 (<0.0001) * | 32.7 | |
| Self-injury | 25.1 | 26.3 | 23.2 | 0.81 (0.37) | 25.4 | |
| Delayed language | 47.2 | 51.0 | 40.8 | 6.48 (0.01) * | 48.2 | |
| Repeats words | 35.6 | 35.6 | 35.6 | 0.00 (0.99) | 36.4 | |
| Poor eye contact | 36.7 | 36.6 | 36.8 | 0.00 (0.96) | 36.8 | |
| Difficulty with peers | 32.5 | 33.0 | 31.6 | 0.14 (0.71) | 32.8 | |
| Repetitive behaviors | 41.2 | 41.1 | 41.2 | 0.00 (0.99) | 41.5 | |
| Rigid/inflexible | 43.4 | 40.7 | 48.0 | 3.42 (0.06) | 44.2 | |
| Overactive | 34.9 | 40.2 | 26.0 | 13.87 (0.0002) * | 35.2 | |
| Difficulties with attention | 57.3 | 56.9 | 58.0 | 0.07 (0.79) | 58.2 | |
| Restlessness | 46.1 | 48.1 | 42.8 | 1.76 (0.18) | 46.7 | |
| Impulsivity | 44.3 | 47.6 | 38.8 | 4.92 (0.03) * | 45.5 | |
| Difficulty with eating | 36.8 | 38.0 | 34.8 | 0.71 (0.40) | 37.7 | |
| Sleep difficulties | 46.7 | 41.4 | 55.6 | 12.69 (0.0004) * | 48.4 | |
| Section 4d | ASD | 23.4 | 24.3 | 22.0 | 0.49 (0.48) | 23.6 |
| ADHD | 21.9 | 24.8 | 17.1 | 5.41 (0.02) * | 22.4 | |
| Anxiety Disorder | 19.1 | 13.3 | 29.0 | 24.67 (<0.0001) * | 19.7 | |
| Depressive | 13.8 | 5.3 | 28.3 | 68.16 (<0.0001) * | 14.1 | |
| OCD | 13.1 | 10.1 | 18.0 | 8.48 (0.004) * | 13.5 | |
| Psychotic | 4.9 | 2.2 | 9.4 | 17.52 (<0.0001) * | 5.3 | |
| Section 6 | Reading | 41.1 | 44.4 | 35.4 | 4.97 (0.03) * | 41.9 |
| Writing | 38.8 | 43.2 | 31.2 | 9.03 (0.003) * | 39.3 | |
| Spelling | 37.6 | 41.0 | 31.6 | 5.57 (0.02) * | 38.0 | |
| Mathematics | 43.3 | 42.7 | 44.3 | 0.16 (0.69) | 44.0 | |
| Section 7 | Memory | 36.6 | 31.0 | 46.4 | 15.41 (<0.0001) * | 38.0 |
| Attention | 59.4 | 57.9 | 62.0 | 1.07 (0.30) | 60.3 | |
| Multi-tasking | 58.1 | 58.0 | 58.2 | 0.00 (0.96) | 58.9 | |
| Visuo-spatial tasks | 38.8 | 41.0 | 35.0 | 2.24 (0.13) | 39.7 | |
| Executive skills | 54.5 | 56.3 | 51.5 | 1.40 (0.24) | 55.0 | |
| Getting disoriented | 33.0 | 31.6 | 35.4 | 1.00 (0.32) | 33.8 |
a*represents p value that was still significant (<0.05) after FDR-adjustment. The higher prevalence between adult and child groups is bolded
bChi-square analysis with 1 degree of freedom
cFrequency of “yes” throughout study period
dSection 4 was not included in the cluster or factor analyses