Table 4.
Adjusted OR for associations between total HEI score in each trimester and GWG.
| Diet Quality | Inadequate GWG | Excessive GWG | ||
|---|---|---|---|---|
| aOR (95% CI) | p-Value | aOR (95% CI) | p-Value | |
| Total HEI score | ||||
| 1st trimester | 1.01 [0.99–1.02] | 0.68 | 1.02 [0.99–1.03] | 0.52 |
| 2nd trimester | 0.98 [0.96–0.98] | 0.03 * | 1.01 [0.98–1.03] | 0.33 |
| 3rd trimester | 0.99 [0.97–1.01] | 0.60 | 1.04 [1.01–1.06] | 0.01 * |
| Interaction term 1 | ||||
| Pre-pregnancy BMI x total HEI score (1st trimester) | 1.01 [0.99–1.00] | 0.37 | 1.01 [0.99–1.03] | 0.90 |
| Pre-pregnancy BMI x total HEI score (2nd trimester) | 0.99 [0.99–1.00] | 0.05 | 1.01 [1.01–1.02] | 0.001 ** |
| Pre-pregnancy BMI x total HEI score (3rd trimester) | 1.02 [0.99–1.01] | 0.51 | 1.02 [1.01–1.04] | 0.001 ** |
Note. aOR- adjusted odds ratio and 95% CI. Adequate GWG as reference group. Adjusted by age, years of education, parity, physical activity level (MET-hours/week) and pre-pregnancy BMI. 1 Only pre-pregnancy BMI showed significant interaction between HEI and GWG. * p < 0.05, ** p < 0.001.