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. 2022 Apr 1;76(10):1457–1463. doi: 10.1038/s41430-022-01123-4

Fig. 1. Model of mediation pathways of insulin sensitivity or insulin resistance on the association between vitamin D status and resting energy expenditure.

Fig. 1

A1, A2, A3 are the indirect pathways from 25OHD to each IS/IR index, while the corresponding paths B1, B2 B3 links each IS/IR to REE. Ć is the direct pathway from 25OHD to REE. Total effect of a model is given by C = [Ć + (A x B)]. 25OHD, 25dihydroxycholecalciferol; McA McAuleys index; QUICKI Quantitative insulin insensitivity check index; TYG Triglyceride and glucose index; REE Resting energy expenditure.