Table 1.
Non-exposed (n = 110)
|
Exposed (n = 227)
|
t or χ2 | |||
---|---|---|---|---|---|
M or % | SD | M or % | SD | ||
Maternal/primary caregiver | |||||
Socioeconomic statusa,b | 26.5 | 9.7 | 25.4 | 11.7 | 0.9 |
Group 1 (%) | 0.0 | 1.3 | |||
Group 2 (%) | 13.6 | 15.0 | |||
Group 3 (%) | 21.8 | 14.5 | |||
Group 4 (%) | 38.2 | 30.0 | |||
Group 5 (%) | 26.4 | 39.2 | |||
Ageb | 33.3 | 9.4 | 37.8 | 9.6 | −4.1** |
Parityc | 1.0 | 1.2 | 1.5 | 1.6 | −3.7** |
Verbal competencec,d | 74.1 | 12.7 | 73.4 | 14.0 | 0.4 |
Marital status (% married)b | 25.5 | 15.9 | 3.8* | ||
Welfare (% receiving)b | 63.6 | 72.2 | 2.6 | ||
Child | |||||
Primary caregiver (% biological mother) | 90.0 | 83.3 | 2.7 | ||
Gender (% male) | 49.1 | 62.6 | 5.5* |
Primary caregiver.
Biological mother.
Peabody Picture Vocabulary Test-Revised (Dunn & Dunn, 1981).
p < .05.
p < .01.