| Group; no. (%) of subjects | |
---|---|---|
 | NICU N = 1135 | Comparison N = 393 |
   Biological parent1 | 1091 (97.7) | 389 (99.5) |
   Female1 | 1070 (95.4) | 383 (98.0) |
   Married/common-law | 962 (85.9) | 344 (87.8) |
Age of parent, years | Â | Â |
   19–29 | 195 (17.8) | 61 (15.7) |
   30–39 | 704 (64.1) | 265 (68.3) |
   ≥ 40 | 199 (18.1) | 62 (16.0) |
Education level | Â | Â |
University | 373 (33.4) | 146 (37.4) |
Trade/technical school or community college | 494 (44.3) | 176 (45.1) |
High school graduation | 185 (16.6) | 50 (12.8) |
No high school diploma | 64 (5.7) | 18 (4.6) |
Household income, $2 | 511 (48.1) | 136 (3) |
<30,000 | 247 (23.3) | 58 (15.5) |
30 – 49,999 | 264 (24.9) | 78 (20.8) |
50 – 79,999 | 333 (31.4) | 145 (38.7) |
80 > | 218 (20.5) | 94 (25.1) |
Male children in the sample | 633 (55.8) | 198 (50.6) |
Age of child, years | Â | Â |
   3 years | 784 (69.3) | 253 (64.4) |
   4 years | 328 (29.0) | 134 (34.1) |
   5 years | 19 (1.7) | 6 (1.5) |