Author:
Ding Ming,Ahmad Shafqat,Qi Lu,Hu Yang,Bhupathiraju Shilpa N,Guasch-Ferré Marta,Jensen Majken K,Chavarro Jorge E,Ridker Paul M,Willett Walter C,Chasman Daniel I,Hu Frank B,Kraft Peter
Abstract
Abstract
We examined interactions between lifestyle factors and genetic risk of type 2 diabetes (T2D-GR), captured by genetic risk score (GRS) and family history (FH). Our initial study cohort included 20,524 European-ancestry participants, of whom 1,897 developed incident T2D, in the Nurses’ Health Study (1984–2016), Nurses’ Health Study II (1989–2016), and Health Professionals Follow-up Study (1986–2016). The analyses were replicated in 19,183 European-ancestry controls and 2,850 incident T2D cases in the Women’s Genome Health Study (1992–2016). We defined 2 categories of T2D-GR: high GRS (upper one-third) with FH and low GRS or without FH. Compared with participants with the healthiest lifestyle and low T2D-GR, the relative risk of T2D for participants with the healthiest lifestyle and high T2D-GR was 2.24 (95% confidence interval (CI): 1.76, 2.86); for participants with the least healthy lifestyle and low T2D-GR, it was 4.05 (95% CI: 3.56, 4.62); and for participants with the least healthy lifestyle and high T2D-GR, it was 8.72 (95% CI: 7.46, 10.19). We found a significant departure from an additive risk difference model in both the initial and replication cohorts, suggesting that adherence to a healthy lifestyle could lead to greater absolute risk reduction among those with high T2D-GR. The public health implication is that a healthy lifestyle is important for diabetes prevention, especially for individuals with high GRS and FH of T2D.
Funder
National Institutes of Health
Publisher
Oxford University Press (OUP)
Cited by
16 articles.
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