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Cumulative incidence of Alzheimer’s disease (AD) according to sex-specific leptin quartiles. The number of events and participants at risk were as follows in the sex-specific quartiles: Q1: 38 events/196 persons at risk; Q2: 23 events/196 persons at risk, Q3: 20 events/196 persons at risk; and Q4: 8 events/197 persons at risk. Along the x-axis the number of persons at risk within each leptin quartile (Q1–Q4) is provided.
