Fig. 1.

Association of Aβ with tau deposition using different systolic blood pressure categories. The estimates are derived from four linear regressions, including participants at four different systolic blood pressure categories. In each linear regression, tau was the outcome and Aβ was the predictor, and the model controlled for age at death, sex, and education. Graphical inspection indicates that the estimates of association between Aβ and tau are monotonically decreasing with increase of SBP except for the SBP group “over 140”. Aβ and tau square root transformed.