Table 1.

Demographic characteristics of participants and mean C-MoCA and MMSE.

	Amnesic MCI (N = 24)	Normal control (N = 148)	P value
Age, mean (SD)	67.17 ± 6.59	67.66 ± 7.16	0.752
Female, N (%)	19 (79.2%)	83 (56.1%)	0.043
Education, mean (SD)	6.17 ± 1.24	6.96 ± 0.49	0.230
Manual job, N (%)	22 (91.7%)	136 (91.9%)	0.611
Current smoking, N (%)	4 (16.7%)	53 (35.8%)	0.100
Current alcohol drinking, N (%)	3 (12.5%)	39 (26.4%)	0.201
MMSE, mean ± SD	24.1 ± 1.22	26.5 ± 0.44	0.000
C-MoCA, mean ± SD	18.3 ± 1.56	21.5 ± 0.73	0.001
C-MoCA
AUC	0.72 ± 0.10
Cutoff	20/21
Sensitivity	0.75
Specificity	0.62
MMSE
AUC	0.74 ± 0.10
Cutoff	26/27
Sensitivity	0.83
Specificity	0.56

The P values were calculated using Student's t-test for continuous variables and chi-square test for categorical variables.

C-MoCA: the Chinese version of Montreal cognitive assessment.

MMSE: mini-mental state examination.

ROC curve: receiver operating characteristic curve.

AUC: area under receiver operating characteristic curve.