Table 2: Multiple regressions of the neuropsychological tests with age and education.

TestsAge (years)Education (years)
(SE) value (SE) value

Mini-mental state examination−0.14 (0.03)<0.0001−0.01 (0.09)0.9 (NS)
Digit span−0.03 (0.01)<0.0010.06 (0.03)0.06 (NS)
Immediate prose memory−0.19 (0.03)<0.00010.38 (0.11)<0.001
Delayed prose memory−0.24 (0.04)<0.00010.41 (0.13)<0.001
Memory with interference at 10 sec−0.08 (0.02)<0.00010.20 (0.17)<0.005
Memory with interference at 30 sec−0.07 (0.02)<0.00010.32 (0.06)<0.0001
Phonemic verbal fluency−0.12 (0.03)<0.00010.28 (0.09)<0.005
Trail making test A0.93 (0.30)<0.005−2.78 (0.99)<0.01
Trail making test B2.45 (0.62)<0.0001−3.32 (2.04)0.1 (NS)
Overlapping figure−0.34 (0.06)<0.00010.32 (0.20)0.09 (NS)
Clock drawing test−0.07 (0.03)<0.010.27 (0.08)<0.005

: partial regression coefficient; SE: standard error of the coefficient; NS: nonsignificant.