Table 4.
Number of children by sex, type of CP, GMFCS score, mean vocabulary size at 48 months, and use of AAC, and rate of receptive vocabulary growth.
| < 50 words/year | 50–100 words/year | > 100 words/year | |
|---|---|---|---|
| Number of children | 30 | 6 | 11 |
| Males; females | 21; 9 | 4; 2 | 7; 4 |
| Type of CP | |||
| Spastic | 16 | 4 | 5 |
| Dyskinetic | 0 | 0 | 1 |
| Hypotonic | 3 | 1 | 0 |
| Mixed | 2 | 0 | 1 |
| Unknown | 9 | 1 | 3 |
| GMFCS at 48 mos. | |||
| I | 0 | 0 | 0 |
| II | 3 | 1 | 0 |
| III | 1 | 0 | 1 |
| IV | 8 | 0 | 4 |
| V | 18 | 5 | 6 |
| Vocabulary size at 48 mos. | |||
| Mean | 65.4 | 133.8 | 329.0 |
| SD | 59.0 | 97.0 | 137.6 |
| Min | 1.5 | 23.4 | 134.3 |
| Max | 217.8 | 308.2 | 583.5 |
| Use of AAC | |||
| < 25% of sessions | 16 | 4 | 1 |
| 25–49% of sessions | 4 | 1 | 2 |
| 50–74% of sessions | 3 | 0 | 3 |
| >75% of sessions | 7 | 1 | 5 |