Table 3.
Associations of periconceptional diet quality (total AHEI-2010 scores) with gestational glucose concentrations on GDM screening and diagnostic testing.
| Test type | Beta | Std. Error | P-value | 95% CI | Adj R2 | |
|---|---|---|---|---|---|---|
| 50g glucose challenge test | ||||||
| 1-hr blood glucose | -0.108 | 0.034 | 0.001 | -0.174 | -0.041 | 0.054 |
| 3-hr 100g GTT | ||||||
| Fasting blood glucose | -0.062 | 0.034 | 0.069 | -0.130 | 0.005 | 0.112 |
| 1-hr blood glucose | -0.247 | 0.090 | 0.006 | -0.424 | -0.071 | 0.027 |
| 2-hr blood glucose | -0.243 | 0.090 | 0.007 | -0.420 | -0.065 | 0.025 |
| 3-hr blood glucose | -0.228 | 0.087 | 0.009 | -0.400 | -0.056 | 0.015 |
| 2-hr 75g GTT | ||||||
| Fasting blood glucose | -0.072 | 0.050 | 0.147 | -0.170 | 0.026 | 0.092 |
| 1-hr blood glucose | -0.374 | 0.153 | 0.015 | -0.675 | -0.073 | 0.082 |
| 2-hr blood glucose | -0.354 | 0.137 | 0.010 | -0.625 | -0.084 | 0.097 |
Adjusted for covariates: maternal age, race/ethnicity, smoking status, early pregnancy body mass index, rate of gestational weight gain, energy intake, nausea and vomiting of pregnancy (PUQE score), study site. AHEI, Alternative Healthy Eating Index; GTT, glucose tolerance test.