TABLE 3.
The number of participants in intelligence quotient (IQ) score categories and autism spectrum disorder (ASD)a diagnosis by types of mosaicism, Fragile X Online Registry with Accessible Research Database, 2012–2019
| Total N (%) |
No size mosaic |
With size mosaic |
|||
|---|---|---|---|---|---|
| No methylation mosaic N |
With methylation mosaic N |
No methylation mosaic N |
With methylation mosaic N |
||
| IQ test | |||||
| IQ lower than 55 | 135 (78%) | 98 | 17 | 14 | 6 |
| IQ higher than 55 | 37 (22%) | 15 | 10 | 6 | 6 |
| ASD diagnosis | |||||
| No ASD diagnosis | 223 (50%) | 149 | 28 | 28 | 18 |
| With ASD diagnosis | 225 (50%) | 165 | 22 | 21 | 17 |
a
ASD diagnosis was documented based on clinician report.