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. 2023 Jan 28;15(3):659. doi: 10.3390/nu15030659

Figure 4.

Figure 4

(a–d). The association between hours of vigorous to moderate exercise per week and the (a) Dietary Guideline Index 2013 (DGI-2013), (b) EAT-Lancet Index, (c) Mediterranean Diet Index (MedDiet) and (d) Literature-Based Mediterranean Diet Index (Lit-MedDiet). Marginal mean estimates of the dietary indices (z-scores) are based on linear regression modelling, with hours of vigorous to moderate exercise per week fitted as a restricted cubic spline. Green dotted lines represent the location of the spline knots, and the orange dotted lines present the location of the spline bounds. Analyses are adjusted for age, sex, marital status, ethnicity, the highest level of education attained, income, hours of vigorous to moderate physical exercise per week and smoking status (model 2).