Table 3.

Regional PET uptake related to retrospective change in sleep durationa

t valueKendall's τ slope (corr)
40s–50s50s–60s60s–70sSlope (t test)
PiB DVR ROI
    mPFC2.17*1.763.00*3.56*−0.17*
    dlPFC2.27*1.682.81*3.41*−0.16*
    Parietal2.42*1.852.75*3.29*−0.15*
    Temporal2.032.18*2.59*3.41*−0.15
FTP SUVR ROI
    Entorhinal cortex−0.211.271.690.83−0.06
    Braak I/II regions−0.801.141.030.30−0.07
    Braak III/IV regions−1.292.56*0.480.70−0.08
    Braak V/VI regions−1.111.731.731.23−0.10
    MTL−0.801.490.860.40−0.05
    Global−1.191.971.321.09−0.09

  • ↵aRows represent each ROI. Columns represent statistical tests (see Materials and Methods). PiB DVR ROIs are comprised of weighted PiB DVR means within FreeSurfer regions, as described by Mander et al. (2015). FTP SUVR ROIs are comprised of weighted FTP SUVR means within FreeSurfer regions after PVC, as described by Maass et al. (2017).

  • ↵*p < 0.05.