Table 2: Mean levels (mean ± standard error of the mean, SEM) of serum hydroperoxides and residual antioxidant power (RAP) in nondemented healthy controls, MCI/MCI, MCI/LOAD, and LOAD patients.

Controls ( ) MCI/MCI ( )MCI/LOAD ( )LOAD ( )ANCOVA ( )

Hydroperoxides (CU) 0.01
RAP (FRAP units) 0.06

MCI/MCI: stable MCI patients; MCI/LOAD: MCI patients converted to LOAD. CU: Carratelli Units; FRAP: Ferric reduction antioxidant capacity. In the ANCOVA model: age, gender, hypertension, cardiovascular diseases, diabetes, and smoking habit.
or versus controls.