TABLE 3.
Results of linear regression models predicting Shannon alpha diversity measure
| Variable | β/SD | SE | P value |
|---|---|---|---|
| HFC score | 0.044 | 6.18 × 10−5 | 2.21 × 10−3 |
| Combined fiber sources score | 0.049 | 8.75 × 10−5 | 5.31 × 10−4 |
| Fiber-rich breads | 0.043 | 1.97 × 10−4 | 2.70 × 10−3 |
| Poultry | 0.036 | 1.26 × 10−3 | 1.28 × 10−2 |
| Fruits | 0.035 | 2.73 × 10−4 | 1.44 × 10−2 |
| Low-fat cheeses | 0.035 | 2.75 × 10−4 | 1.51 × 10−2 |
| Berries | 0.033 | 4.98 × 10−4 | 2.12 × 10−2 |
| Vegetables | 0.026 | 1.80 × 10−4 | 6.38 × 10−2 |
| Fruit and berry juices | 0.0025 | 3.72 × 10−4 | 8.59 × 10−1 |
| Nuts and seeds | 0.020 | 8.39 × 10−4 | 1.64 × 10−1 |
| Fish | 0.010 | 1.15 × 10−3 | 4.65 × 10−1 |
| Red and processed meat products (low use) | −0.0051 | 1.50 × 10−4 | 7.21 × 10−1 |
| Dressings and oils | −0.0062 | 5.57 × 10−4 | 6.66 × 10−1 |
Each row represents the results of one regression model, sorted by standardized effect strength with the HFC score on the first row and combined fiber sources score on the second row. The scores’ individual components are listed starting from row three. Covariates in each model include age, sex, BMI, smoking, and potentially microbiota-altering medication. Interaction effects were nonsignificant and thus were omitted from the analyses. Abbreviations: HFC, healthy food choices.