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[Preprint]. 2023 Dec 14:2023.12.12.23299878. [Version 1] doi: 10.1101/2023.12.12.23299878

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Figure 1: — Correlation and diagnostic performance of the Aβ42/40 ratio and amyloid PET imaging. A) Plasma Aβ42/40 ratio compared with amyloid PET status (Aβ-PET− and Aβ-PET+). Black dashed line denotes optimal Aβ42/40 ratio cutoff of 0.160. Red dashed lines denote Aβ42/40 ratio indeterminant risk cutoffs (0.150 and 0.170); a = significant at P < 0.001; B) ROC-AUC of the plasma Aβ42/40 ratio for prediction of amyloid PET positivity. AUC, area under the curve; ROC, receiver operating characteristic.

Figure 1: — Correlation and diagnostic performance of the Aβ42/40 ratio and amyloid PET imaging. A) Plasma Aβ42/40 ratio compared with amyloid PET status (Aβ-PET− and Aβ-PET+). Black dashed line denotes optimal Aβ42/40 ratio cutoff of 0.160. Red dashed lines denote Aβ42/40 ratio indeterminant risk cutoffs (0.150 and 0.170); a = significant at P < 0.001; B) ROC-AUC of the plasma Aβ42/40 ratio for prediction of amyloid PET positivity. AUC, area under the curve; ROC, receiver operating characteristic.