Research Paper Volume 12, Issue 9 pp 8536—8548

The relation of poor mastication with cognition and dementia risk: a population-based longitudinal study

Figure 1. Age–related cognitive trajectories in different domains by Eichner categories. Model with age as timescale, adjusted for sex, education, birth cohort, and practice effects (n=544). The reference group was Eichner category A. A knot was placed at age 65 (spatial/fluid abilities, memory, and perceptual speed) or at age 70 (verbal ability).