Table 1.
Sample characteristics
| Variables | Sample (n = 3,093)
|
Cases in the analyses (n = 2,297)
|
||
|---|---|---|---|---|
| % | n | % | n | |
| Amount of care | ||||
| Maternal care | 75.2 | 2,310 | 75.1 | 1,724 |
| Part-time NMC | 9.8 | 302 | 9.9 | 227 |
| Full-time NMC | 15.0 | 462 | 15.0 | 345 |
| SES | ||||
| Adequate | 75.0 | 2,294 | 77.6 | 1,783 |
| Low | 25.0 | 765 | 22.4 | 514 |
| Sex | ||||
| Male | 51.2 | 1,582 | ||
| Female | 48.8 | 1,511 | ||
| Birth weight | ||||
| Normal | 93.6 | 2,825 | 93.1 | 2,137 |
| Low | 6.4 | 193 | 6.9 | 159 |
| Premature birth | ||||
| Normal range | 89.5 | 2,700 | ||
| Premature | 10.5 | 316 | ||
| Health at birth | ||||
| Good health | 98.2 | 2,883 | ||
| Poor health | 1.8 | 156 | ||
| First language learned | ||||
| English only | 65.6 | 2,018 | 66.0 | 1,517 |
| French only | 21.1 | 648 | 22.9 | 526 |
| French and English | 1.4 | 44 | 1.6 | 36 |
| Others | 11.9 | 365 | 9.5 | 217 |
| Ethnicity | ||||
| Caucasian | 86.5 | 2,490 | ||
| Not Caucasian | 13.5 | 388 | ||
| Working status | ||||
| Not working | 42.9 | 1,088 | ||
| Working | 57.1 | 1,451 | ||
| Breast-feeding | ||||
| Yes | 77.0 | 2,340 | 77.5 | 1,780 |
| No | 23.0 | 698 | 22.5 | 517 |
| Marital status | ||||
| Intact | 89.8 | 2,778 | ||
| Not intact | 10.2 | 315 | ||
| M | SD | M | SD | |
|
|
||||
| PPVT-R | 99.27 | 15.02 | 99.46 | 14.96 |
| Temperament | 8.44 | 5.74 | ||
| Siblings | .86 | .94 | .87 | .92 |
| Family functioning | 7.61 | 5.20 | 7.35 | 5.14 |
| Maternal depression | 4.76 | 4.69 | 4.75 | 4.57 |
| Age in months | 6.16 | 3.02 | 6.19 | 3.02 |
| Maternal age | 29.09 | 5.05 | 29.28 | 4.95 |
| Maternal smoking | 2.11 | 5.09 | 2.10 | 5.09 |