Table 3.

Associations between principal components of oxidative stress and inflammation and AD biomarkers in the 60s.

	Dependent Variable:
	Tau		Aβ38 (log)		Aβ40 (log)		Aβ42 (log)		Aβ40/42
PC1	−0.127 ***	−0.142 ***	−0.084 **	−0.099 ***	−0.060 ***	−0.065 ***	−0.056 ***	−0.060 ***	−0.005	−0.005
	p = 0.008	p = 0.005	p = 0.011	p = 0.004	p = 0.00001	p = 0.00001	p = 0.004	p = 0.003	p = 0.676	p = 0.679
PC2	−0.090	−0.081	0.038	0.04	−0.027	−0.028	−0.027	−0.029	−0.0005	0.002
	p = 0.173	p = 0.227	p = 0.405	p = 0.392	p = 0.122	p = 0.123	p = 0.304	p = 0.268	p = 0.977	p = 0.912
PC3	−0.068	−0.076	−0.081	−0.082	−0.001	−0.001	−0.043	−0.043	0.042 **	0.042 **
	p = 0.375	p = 0.322	p = 0.131	p = 0.127	p = 0.945	p = 0.943	p = 0.154	p = 0.158	p = 0.023	p = 0.024
PC4	−0.316 ***	−0.291 ***	−0.151 ***	−0.139 **	−0.035	−0.032	−0.061 *	−0.060 *	0.026	0.029
	p = 0.0002	p = 0.001	p = 0.010	p = 0.018	p = 0.113	p = 0.155	p = 0.061	p = 0.069	p = 0.181	p = 0.151
Constant	5.648	5.791	6.440 **	7.137 **	4.785 ***	5.219 ***	4.041 **	4.840 ***	0.744	0.379
	p = 0.220	p = 0.220	p = 0.044	p = 0.032	p = 0.0002	p = 0.00005	p = 0.027	p = 0.010	p = 0.496	p = 0.736
Observations	375	375	353	353	380	380	380	380	380	380
Log Likelihood	−710.108	−706.354	−531.172	−528.038	−219.326	−216.888	−368.880	−366.495	−176.088	−174.311
Akaike Inf. Crit.	1436.215	1438.708	1078.345	1082.075	454.651	459.777	753.76	758.991	368.175	374.622

Note: * p < 0.1; ** p < 0.05; *** p < 0.01.