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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: Alzheimers Dement. 2018 Jul 23;14(9):1159–1170. doi: 10.1016/j.jalz.2018.05.004

Table 3.

Summary of Linear Regression Examining the Direct Effects of Exposure to Repetitive Head Impacts on Cerebrospinal Fluid Markers of Tau, Amyloid, and sTREM2

t-tau p-tau181 p-tau181/t-tau Aβ1–42 sTREM2
beta SE P-value beta SE P-value beta SE P-value beta SE P-value beta SE P-value
Age 0.36 0.19 0.056 0.09 0.15 0.552 −0.003 0.004 0.423 −0.49 1.17 0.68 0.08 0.03 0.002
BMI −0.73 0.38 0.055 −0.23 0.31 0.461 0.003 0.01 0.684 0.08 2.36 0.973 −0.04 0.05 0.388
Race −3.28 3.37 0.333 4.01 2.79 0.154 0.198 0.07 0.009 −35.51 21.11 0.098 −1.35 0.46 0.004
CHII 0.54 0.26 0.041 0.33 0.22 0.127 0.003 0.01 0.61 0.52 1.64 0.750 0.02 0.04 0.541

Abbreviations: t-tau = total tau, p-tau181 = hyperphosphorylated tau, Aβ = beta-amyloid, BMI = body mass index, CHII = cumulative head impact index, SE = standard error. Beta is unstandardized and bolded values highlight statistical significance. For race, 1 = African American and 0 = Caucasian.