TABLE 4.

Subjective cognitive decline (SCD) stratification: CSF biomarkers associated with meta-memory standardized residuals.

Predictors	Non-SCD		SCD
	std. β (95% CI)	p value	std. β (95% CI)	p value
Intercept	0.118 (−0.073, 0.310)	0.225	0.145 (−0.160, 0.450)	0.348
CSF p-tau181	−0.007 (−0.187, 0.174)	0.942	−0.006 (−0.279, 0.268)	0.968
CSF Aβ42/40	0.075 (−0.074, 0.225)	0.322	−0.328 (−0.570, −0.087)	0.008*
CSF (Aβ42/40)2	−0.166 (−0.318, −0.013)	0.034*	−0.148 (−0.401, 0.105)	0.247
CSF p-tau181 x (CSF Aβ42/40)2	0.082 (−0.026, 0.191)	0.137	0.003 (−0.138, 0.144)	0.964

Sample was stratified by SCD-Q My-Cognition, non-SCD with n = 227, and SCD with n = 87. Results presented are standardized β coefficients, 95% Confidence Interval (CI), and p values derived from multivariable regression models using CSF Aβ42/40, and CSF p-tau181 as predictors of meta-memory standardized residuals adjusted for demographic characteristics (sex, age, and education). The p values in bold indicate a significant association (* < 0.050).