The association of dietary total antioxidant capacity and gestational diabetes: a prospective cohort study from the Mothers and their children’s health (MATCH)

Shilan Heshmati; Jalal Moludi; Seyed Mostafa Nachvak; Reihaneh Pirjani; Javad Heshmati; Mahdi Sepidarkish

The association of dietary total antioxidant capacity and gestational diabetes: a prospective cohort study from the Mothers and their children’s health (MATCH)

2024

Abstract Background/Objectives There is evidence to support the hypothesis that a diet rich in antioxidants can help safeguard against the development of gestational diabetes mellitus (GDM). This study aimed to investigate the association between dietary total antioxidant capacity (DTAC) during early pregnancy and the risk of GDM. Subjects/Methods We included 1856 pregnant women in their first trimester from the Mothers and their Children’s Health (MATCH) prospective cohort study. Prepregnancy dietary intake was assessed using a validated food frequency questionnaire (FFQ) and was used to calculate the DTAC score. Incident GDM was diagnosed based on the American Diabetes Association criteria. We estimated the association between DTAC and GDM using propensity score–based inverse probability weighting (IPW). Results Overall, 369 (14.6%) of the pregnant women were identified with GDM. The mean DTAC score and the corresponding standard deviation (SD) was 2.82± (2.56) mmol/100 g, with a range of 0.01 to 18.55. The adjusted risk of GDM decreased by 34% (95% CI = 10%, 52%, p = 0.023) for each DTAC score increase. The results showed that women in the highest quartile of DTAC had a lower risk of developing GDM compared to those in the lowest quartile (adjusted RR: 0.29, 95% CI: 0.12, 0.68, p = 0.005). Conclusion DTAC in early pregnancy is significantly associated with a lower risk of GDM. Additional larger cohort studies are needed to validate these findings.

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