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. 2021 Oct 1;13:722836. doi: 10.3389/fnagi.2021.722836

Figure 3.

Figure 3

MetS and incidence of PD conversion by age. The participants were divided into three groups according to age: 60–69 years old, 70–79 years old, and 80 years and older. The incidence of PD conversion was significantly higher in participants with metabolic syndrome than in those with non-metabolic syndrome in the 60–69, 70–79, and 80 years and older age groups (P < 0.05; P < 0.01; A). The incidence of PD conversion was analyzed according to the number of MetS components. Compared with the non-metabolic syndrome component, the incidence of PD conversion was significantly higher in participants with three and four to five metabolic syndrome components in the 70–79 and 80 years and older groups (P < 0.05), and the incidence of PD conversion was significantly higher in participants with four to five metabolic syndrome components in the 60–69 years old group (P < 0.05; B). PD, Parkinson's disease; MetS, metabolic syndrome.