Table 2.
Frequency (%) of individual neurodivergencies in each group, and average number of neurodivergencies per group.
| Neurodivergence | Current SD | Past SD | No SD | Lifelong EHE | Between-group analysis |
|---|---|---|---|---|---|
| Neurodivergent (ND) | 666 (92.1) | 168 (83.6) | 33 (22.2) | 22 (88.0) | χ2(3,1,098) = 394.5, p < 0.001 |
| Autistic | 598 (83.4) | 133 (66.2) | 25 (16.8) | 13 (52.0) | χ2(3,1,092) = 269.7, p < 0.001 |
| Sensory Processing Disorder/Sensory Integration Disorder (SPD/SID) | 406 (56.9) | 87 (43.3) | 10 (6.7) | 13 (52.0) | χ2(3,1,089) = 126.2, p < 0.001 |
| Attention Deficit Hyperactivity Disorder (ADHD) | 395 (55.3) | 87 (43.3) | 13 (8.7) | 12 (48.0) | χ2(3,1,089) = 108.6, p < 0.001 |
| Dyslexia | 181 (25.4) | 47 (23.4) | 8 (5.4) | 2 (8.0) | χ2(3,1,089) = 31.9, p < 0.001 |
| Dyspraxia | 177 (24.7) | 55 (27.4) | 12 (8.1) | 2 (8.0) | χ2(3,1,089) = 108.6, p < 0.001 |
| Auditory Processing Disorder (APD) | 130 (18.2) | 26 (12.9) | 5 (3.4) | 3 (12.0) | χ2(3,1,089) = 22.4, p < 0.001 |
| Speech Difficulties | 115 (16.1) | 21 (10.4) | 7 (4.7) | 4 (16.0) | χ2(3,1,089) = 15.8, p < 0.01 |
| Gifted | 103 (14.4) | 29 (14.4) | 6 (4.0) | 6 (24.0) | χ2(3,1,089) = 14.7, p < 0.01 |
| Other | 89 (12.5) | 16 (8.0) | 3 (2.0) | 3 (12.0) | χ2(3,1,089) = 16.1, p < 0.01 |
| Dyscalculia | 88 (12.3) | 19 (9.5) | 4 (2.7) | 0 | χ2(3,1,089) = 15.7, p < 0.01 |
| Language Disorder | 82 (11.5) | 20 (10.0) | 4 (2.7) | 2 (8.0) | χ2(3,1,089) = 10.8, p < 0.05 |
| Visual Processing Difficulties | 69 (9.7) | 19 (9.5) | 0 | 0 | χ2(3,1,089) = 18.2, p < 0.001 |
| Tic Disorder | 61 (8.5) | 13 (6.5) | 5 (3.4) | 1 (4.0) | χ2(3,1,089) = 5.6, p > 0.05 |
| Unspecified Learning Disorder | 60 (8.4) | 10 (5.0) | 1 (0.7) | 1 (4.0) | χ2(3,1,089) = 13.4, p < 0.01 |
| Intellectual Disability | 48 (6.7) | 10 (5.0) | 2 (1.3) | 1 (4.0) | χ2(3,1,089) = 7.1, p > 0.05 |
| Spatial Processing Disorder | 46 (6.4) | 10 (5.0) | 2 (1.3) | 0 | χ2(3,1,089) = 7.9, p < 0.05 |
| Mean Number of NDs (StDev) | 3.7 (2.5) | 3 (2.5) | 0.72 (1.7) | 2.5 (2.0) | F(3,1,085) = 61.0, p < 0.001 |
Frequencies reflect the number of parents who responded “yes” or “maybe” to their child being neurodivergent and having each neurodivergent condition. Under the “other” category, hypermobility, PDA, and dysgraphia were the most frequently mentioned. Chi-Square (χ2) analyzes were used to explore between-group differences for categorical variables, while the quantitative variable (i.e., number of ND conditions per CYP) was explored using a one-way ANOVA.