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Demographics, mean (standard deviation).
| SYNGAP1-ID (n = 64) | PMD (n = 47) | Siblings (n = 61) | Kruskal-Wallis Statistic | Kruskal-Wallis Test (p-Value) | |
|---|---|---|---|---|---|
| Age | 8.4 (8.2) | 12.7 (9.2) | 9.2 (4.5) | 10.12 | 0.0063 |
| Age (under 11) | 5.6 (2.4) | 5.6 (2.5) | 6.1 (2.5) | 0.88 | 0.6453 |
| Age (11 and over) | 17.4 (13.1) | 20.2 (7.5) | 13.9 (2.0) | 17.38 | 0.0002 |
| Males | 48% | 49% | 41% | 0.63 * | |
| Females | 52% | 51% | 59% | 0.63 * |
* Chi-square = 0.93; df = 2
