Table 1 Maternal characteristics by family income and contribution to a retirement savings plan (RSP) among singleton births, Nova Scotia, 1988-2003
Characteristic | Family income* | RSP (no) | RSP (yes) | |||||
|---|---|---|---|---|---|---|---|---|
<$4,430 | $4,430 to $6,529 | $6,530 to $11,914 | $11,915 to $17,584 | $17,585 to $24,949 | ≥$29,450 | |||
N = 13,217 | N = 13,215 | N = 26,354 | N = 26,536 | N = 26,628 | N = 26,764 | N = 96,356 | N = 36,358 | |
Maternal age <20 yrs (%) | 34.9 | 14.0 | 6.7 | 2.4 | 1.4 | 1.0 | 9.5 | 1.0 |
Maternal age ≥35 yrs (%) | 4.8 | 5.8 | 8.2 | 9.8 | 12.1 | 18.6 | 8.9 | 15.6 |
Nulliparous (%) | 62.1 | 40.5 | 34.6 | 36.4 | 43.0 | 54.5 | 43.8 | 44.0 |
Nulliparous, ≥35 yrs (%) | 0.8 | 0.7 | 1.3 | 1.7 | 2.7 | 6.7 | 1.9 | 4.5 |
Married (%) | 20.9 | 25.2 | 53.3 | 79.3 | 87.4 | 91.5 | 58.0 | 90.8 |
Rural residence (%) | 45.4 | 36.9 | 43.9 | 46.0 | 38.4 | 27.7 | 41.1 | 34.7 |
Prenatal classes† (%) | 53.6 | 55.7 | 62.8 | 73.8 | 82.7 | 87.8 | 67.8 | 86.3 |
Pre-preg. Wt. ≥90 kg (%) | 6.7 | 9.3 | 10.5 | 9.6 | 7.7 | 4.8 | 9.0 | 5.7 |
Delivery Wt. ≥100 kg (%) | 10.0 | 12.2 | 13.2 | 12.3 | 10.8 | 7.5 | 11.9 | 8.4 |
Smokers (%) | 43.7 | 48.2 | 36.8 | 25.1 | 18.3 | 10.7 | 32.8 | 12.0 |