Table 2 Demography, brain volume and neuropsychological test between non-converter and converter after 7-year follow-up(N = 108)

MMSE

27.61 ± 1.84

24.71 ± 3.12

-4.655

0.000**

MoCA

23.21 ± 3.66

17.87 ± 3.70

-5.537

0.000**

Digit span

forward

8.42 ± 2.37

7.19 ± 2.36

-2.273

0.023*

backward

5.29 ± 1.94

4.16 ± 1.29

-2.790

0.005*

AVLT

AVLT-IR

32.05 ± 8.92

22.94 ± 9.31

-5.040

0.000**

AVLT-DR

9.55 ± 3.67

4.97 ± 4.36

-4.631

0.000**

Verbal fluency average^a

8.79 ± 2.32

6.84 ± 2.23

-3.426

0.001*

Visual recognition

functional^a

3.62 ± 0.63

3.06 ± 0.93

-3.518

0.000**

semantic^a

3.12 ± 0.76

2.45 ± 1.18

-2.792

0.005*

correct^b

5.65 ± 1.64

5.23 ± 2.00

− 0.970

0.332

WAIS picture completion

10.69 ± 3.25

8.77 ± 3.29

0.025

0.007*

WAIS block design^b

29.86 ± 7.07

26.53 ± 8.29

-4.170

0.000**