Histogram from Scientific Research

Histograms represent the distribution of the data colored by the imaging biomarker status. The vertical black line represents the threshold derived from the first approach ( a ), and red lines represent the lower and upper thresholds from the second approach ( b ). A PET positivity was assessed as Centiloids 37. CSF, cerebrospinal fluid; CI, confidence interval; NPV, negative predictive value; PPV, positive predictive value.

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