Maternal Dietary Patterns Are Associated with Pre-Pregnancy Body Mass Index and Gestational Weight Gain: Results from the "Mamma & Bambino" Cohort.

In general, we reported a positive trend of GWG across tertiles of the Western dietary pattern (β = 1.217; SE = 0.487; p = 0.013).

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However, we observed an opposite effect across BMI categories: among underweight, we found a positive trend of GWG across tertiles of the prudent dietary pattern (β = 4.127; SE = 1.722; p = 0.048); conversely, we showed a negative trend in overweight (β = −4.209; SE = 1.635; p = 0.016) and obese (β = −7.356; SE = 2.304; p = 0.031) women.

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