Table 10.
Multiple regression analysis models (stepwise method) with the thyroid nodules presence/absence as a dependent variable to estimate the predictive value of sex, lifestyle characteristics, BMI categories, PREDIMED scores, and each item included in PREDIMED questionnaire.
| Parameters | Multiple regression analysis | |||
|---|---|---|---|---|
| R2 | β | t | *p-value | |
| Model 1 | ||||
| PREDIMED score | 0.211 | −0.461 | −14.61 | <0.001 |
| BMI categories | 0.287 | −0.334 | −9.24 | <0.001 |
| Model 2 | ||||
| Fish/seafood ≥3/week | 0.377 | −0.614 | −21.92 | <0.001 |
| Fruits ≥3 servings/day | 0.431 | −0.255 | −8.77 | <0.001 |
| Red/processed meats <1/day | 0.455 | −0.173 | −7.43 | <0.001 |
| PREDIMED score | 0.462 | −0.094 | −3.54 | <0.001 |
PREDIMED, Prevención con Dieta Mediterránea; BMI, Body mass index. *A significant difference (p < 0.05).