Table 1.

Demographics, CSF values, and memory performance: age in years (mean and standard deviation); HDS score (mean and standard deviation); CSF levels of Aβ_1-42, T and P tau (mean and standard deviation); and proportions of primacy and nonprimacy performance (mean and standard deviation)

Variable	Mean (SD)
Age	67.13 (6.23)
HDS	10.55 (11.01)
Aβ1-42	269.45 (158.93)
T tau	296.02 (132.38)∗
P tau	50.00 (23.78)
Primacy	0.64 (0.27)
Nonprimacy	0.54 (0.17)

Abbreviations: CSF, cerebrospinal fluid; HDS, Hamilton Depression Rating score; Aβ, amyloid-β.

NOTE. Number of subjects (i.e., N) for each measurement was 47 except stated otherwise.

^∗Because of an undetermined value, the N for T tau is 46.