The Efficacy of Cognitive Training for Elderly Chinese Individuals with Mild Cognitive Impairment

Table 2

Distribution of MoCA scores according to demographic characteristics.

Characteristic	Sample (N)	MoCA score (Mean ± SD)	t test/one-way ANOVA		Spearman correlation analysis
			t/F value	value	Correlation coefficient (r)	value
Total	2886	21.69 ± 4.64
Gender			7.893	<0.001
Male	1201	22.47 ± 4.16
Female	1685	21.13 ± 4.89
Age (years)			145.736	<0.001	−0.418	<0.001
60–64	284	24.02 ± 3.26
65–69	1356	23.07 ± 3.71
70–74	644	21.18 ± 4.07
75–79	343	18.98 ± 4.99
≧80	259	16.76 ± 5.68
Education level (years of education)			265.461	<0.001	0.491	<0.001
Illiteracy (0 years)	306	15.13 ± 4.96
Primary school (6 years)	934	20.72 ± 4.16
Middle school (9 years)	836	22.83 ± 3.52
High school (12 years)	508	23.99 ± 3.34
College (≧13 years)	302	24.32 ± 2.95
Monthly income ($)			86.302	<0.001	0.361	<0.001
0	399	18.36 ± 5.58
1–148	351	19.61 ± 4.83
149–297	596	21.48 ± 4.26
298–446	904	22.74 ± 3.91
447–595	364	23.63 ± 3.59
≧596	272	23.63 ± 3.35
Sleep time (hours/day)			29.271	<0.001	0.132	<0.001
<4	129	17.88 ± 5.34
<6	1394	21.55 ± 4.66
<8	1097	22.09 ± 4.36
≧8	266	22.65 ± 4.41
Exercise time (hours/week)			85.422	<0.001	0.275	<0.001
0	502	18.74 ± 5.33
<1	1650	21.95 ± 4.40
≧1	637	23.10 ± 3.74
≧2	97	23.29 ± 3.41
Reading (times/week)			114.360	<0.001	0.318	<0.001
0	1564	20.35 ± 4.89
1-2	707	22.93 ± 3.70
3–5	270	23.79 ± 3.77
≥6	345	23.59 ± 3.81
Community activities (times/week)			15.484	<0.001	0.129	<0.001
0	776	20.71 ± 5.24
1–3	1249	21.71 ± 4.47
4–6	627	22.60 ± 4.24
7–9	198	22.43 ± 3.94
≧10	36	22.31 ± 3.19
Housework (times/week)			13.404	<0.001	0.082	<0.001
0	287	19.80 ± 5.45
1-2	639	21.90 ± 4.24
3–5	546	21.75 ± 4.24
≧6	1414	21.96 ± 4.71