Table 2.
Characteristics of mothers and children in the Alberta Pregnancy Outcomes and Nutrition Study
| Maternal characteristics | Mean or n | % or sd |
|---|---|---|
| Age (years) | 35·5 | 4·0 |
| Education | ||
| Less than university | 288 | 24 |
| University level | 902 | 75·1 |
| Missing | 11 | 0·9 |
| Household income | ||
| <$100 000 pa | 465 | 38·7 |
| ≥$100 000 pa | 713 | 59·4 |
| Missing | 23 | 1·9 |
| Marital status | ||
| Single or separated/divorced | 33 | 2·7 |
| Married or cohabiting | 1165 | 97 |
| Missing | 3 | 0·2 |
| Ethnicity | ||
| Caucasian | 1037 | 86·3 |
| Non-Caucasian | 156 | 13 |
| Missing | 8 | 0·7 |
| Pre-pregnancy BMI | ||
| Underweight | 40 | 3·3 |
| Normal weight | 775 | 64·5 |
| Overweight | 252 | 21 |
| Obese | 129 | 10·7 |
| Missing | 5 | 0·4 |
| Child characteristics | ||
| Child age in months | 36·4 | 0·9 |
| Gender | ||
| Male | 632 | 52 |
| Female | 583 | 48 |
| Birth order | ||
| 1st | 705 | 58 |
| 2nd | 405 | 33 |
| 3rd | 93 | 8 |
| 4th/5th | 12 | 1 |