Table 2.
Factor loadings matrix for two dietary patterns
| Foods or food group | Western diet (factor 1) | Prudent diet (factor 2) |
|---|---|---|
| Bread | 0.82 | |
| Pizza | 0.77 | |
| Sweets | 0.76 | |
| Potatoes | 0.71 | |
| Fat & sauces | 0.65 | |
| Meats | 0.60 | |
| Snacks | 0.59 | |
| Beverage | 0.51 | |
| Pasta | 0.44 | |
| Coffee & tea | 0.44 | |
| Poultry | 0.42 | |
| Grains | 0.39 | |
| Dairy products | 0.36 | |
| Alcohol | 0.31 | |
| Fruit | 0.79 | |
| Vegetables | 0.64 | |
| Fish & shellfish | 0.63 | |
| Cereal | 0.59 | |
| Legumes & soy | 0.46 | |
| Eggs | 0.41 | |
| Nuts | 0.37 |
Factor loading values less than 0.30 are not listed in the matrix for simplicity. Two dietary patterns were derived by principal component analysis after entering the 21 food groups into the FACTOR PROCEDURE. The factors were rotated by orthogonal transformations (Varimax rotation function in SAS).