Table 3.
Food preparation and dietary choices in the intervention and control groups.
| Time Point | Intervention Group | Control Group | n a | Adjusted OR b (95% CI) |
Adjusted p Value b | |||
|---|---|---|---|---|---|---|---|---|
| n | % | n | % | |||||
| Whole grain bread | T1pp | 828/893 | 92.7% | 808/888 | 91.0% | 1657 | 1.21 (0.65, 2.28) | 0.546 |
| T2pp | 745/788 | 94.5% | 724/774 | 93.5% | 1471 | 1.46 (1.07, 2.01) | 0.017 | |
| Time effect | p = 0.074 c | p = 0.026 c | ||||||
| Rapeseed oil and olive oil (for meat and fish) | T1pp | 456/729 | 62.6% | 446/762 | 58.5% | 1265 | 1.45 (1.13, 1.87) | 0.004 |
| T2pp | 397/615 | 64.6% | 375/631 | 59.4% | 1088 | 1.19 (1.04, 1.36) | 0.011 | |
| Time effect | p = 0.535 c | p = 0.140 c | ||||||
| Rapeseed oil and olive oil (for vegetables) | T1pp | 496/748 | 66.3% | 477/766 | 62.3% | 1259 | 1.32 (1.06, 1.64) | 0.012 |
| T2pp | 447/653 | 68.5% | 408/653 | 62.5% | 1107 | 1.32 (0.93, 1.88) | 0.122 | |
| Time effect | p = 0.215 c | p = 0.556 c | ||||||
| Cooking at least 5 times per week | T1pp | 536/893 | 60.0% | 548/888 | 61.7% | 1661 | 1.01 (0.87, 1.17) | 0.914 |
| T2pp | 578/771 | 75.0% | 551/764 | 72.1% | 1449 | 1.22 (0.97, 1.55) | 0.095 | |
| Time effect | p < 0.001 c | p < 0.001 c | ||||||
| Vegetarian | T1pp | 54/882 | 6.1% | 47/886 | 5.3% | 1677 | 1.20 (0.65, 2.23) | 0.554 |
| T2pp | 44/789 | 5.6% | 36/774 | 4.7% | 1513 | 1.30 (0.67, 2.55) | 0.440 | |
| Time effect | p = 0.717 c | p = 0.446 c | ||||||
Abbreviations: T1pp: Assessment 6–8 weeks postpartum; T2pp: Assessment one year postpartum; OR: Odds ratio. a The total of participant numbers varies due to the applied covariates. b Binary logistic regression models fit using generalised estimating equations adjusted for pre-pregnancy BMI category, age, parity, baseline assessment and time interval between questionnaire completion date and birth date of the child. c Linear mixed models for repeated measures adjusted for pre-pregnancy BMI category, age and parity.