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. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: Brain Imaging Behav. 2021 Jan 11;15(5):2417–2425. doi: 10.1007/s11682-020-00440-1

Figure 3:

Figure 3:

Change in cortical Aβ burden over time in subgroup of 30 older adults who underwent two PET scans (N=19 without remote mTBI or repetitive head impact exposure, N=11 with 1+ remote mTBI). Mixed effects models suggested a possible, but not statistically significant, association (p=.10) of typically aging older adults with remote mTBI (dark blue) having a higher rate of Aβ accumulation over time than those with no remote head trauma (light blue). Bars represent 95% confidence interval of model predicted cortical Aβ burden for each group. Dotted lines show individual participants.