Table 3.

Three risk groups for predicting PSCI, as determined by a decision tree model.

Risk groups	Variables
High (70–100%)
	Baseline MoCA score ≤21
	Baseline MoCA score >21, education ≤10, BMI >24.815
Moderate (30–70%)
	Baseline MoCA score >21, education ≤10, BMI ≤24.815
	Baseline MoCA score >21, education >10, baseline MMSE score ≤28
Low (≤30%)
	Baseline MoCA score >21, education >10, baseline MMSE score >28

MMSE, Mini-Mental State Examination; MoCA, Montreal Cognitive Assessment; BMI, body mass index; Y, years.