Table 1 Descriptive and demographic data for study sample
From: A quantitative measure of restricted and repetitive behaviors for early childhood
Variable | Number | Percent | Mean | (SD) |
|---|---|---|---|---|
Age in months | 914 | Â | 19.7 | (2.4) |
Gestational age (days) | 783a | Â | 275.2 | (14.2) |
Birth weight (grams) | 895a | Â | 3493 | (540) |
Sex | ||||
 Females | 442 | 48 |  |  |
 Males | 472 | 52 |  |  |
Race/ethnicity | ||||
 White | 814 | 89 |  |  |
 Non-white or mixed | 100 | 11 |  |  |
Parent’s education | ||||
 Some college or less | 113 | 12 |  |  |
 College degree | 429 | 47 |  |  |
 Graduate degree | 372 | 41 |  |  |