Figure 2.
Mediation analysis model with SBP z-score as outcome at baseline, including HOMA-index as a mediator of the effect of BMI z-score (panel (a)) and WtHr (panel (b)) on SBP z-score. BMI: body mass index; HOMA: Homeostasis Model Assessment; SBP: systolic blood pressure; WtHr: waist to height ratio.