Fig. 1.

Logistic regression analysis by subgroups (crude and stratified by BMI, age and parity) evaluating degree of adherence to the six food targets and risk of GDM. p: logistic regression analysis comparing ORS with the group of reference (low adherence group). p-interaction: logistic regression analysis evaluating interactions between degree of adherence and BMI (≥25 or <25 kg/m²), age (≥35 or <35 years), parity (multiparous or primiparous) and rs7903146 (CT + TT or CC). OR: odds ratio; CI: confidence interval; BMI: body mass index. High: high adherence, 5–6 targets; Moderate: moderate adherence, 2–4 targets; Low: low adherence, 0–1 targets.