Table 2 Maternal Characteristics in the CDW- and MLW-Cohorts
Cohort | ||||||
|---|---|---|---|---|---|---|
Characteristic | CDW n = 201 | MLW n = 252 | P-value | |||
n | % | N | % | |||
Maternal age (years) | <29 | 12 | 6.0 | 10 | 4.0 | 0.7 |
20–24 | 56 | 27.9 | 62 | 24.6 | ||
25–29 | 77 | 38.3 | 109 | 43.3 | ||
30–34 | 44 | 21.9 | 57 | 22.6 | ||
>34 | 12 | 6.0 | 14 | 5.6 | ||
Marital status | Cohabiting | 168 | 83.6 | 232 | 92.1 | 0.014 |
Single motherhood | 29 | 14.4 | 19 | 7.5 | ||
Other or unknown | 4 | 2.0 | 1 | 0.4 | ||
Education | Elementary | 24 | 11.9 | 15 | 6.0 | <0.0001 |
Upper secondary | 91 | 45.3 | 82 | 32.5 | ||
University | 85 | 42.3 | 134 | 53.2 | ||
Worked during Pregnancy | Yes | 154 | 76.6 | 232 | 92.1 | <0.0001 |
No | 45 | 22.4 | 19 | 7.5 | ||
Smoker at 1.st prenatal visit | Non-smoker | 143 | 71.1 | 208 | 82.5 | 0.003 |
1–10 cigarettes/day | 56 | 27.9 | 39 | 15.5 | ||
> 10 cigarettes/day | 0 | 0.0 | 4 | 1.6 | ||
Unknown | 2 | 1.0 | 1 | 0.4 | ||