Gender and Age Differences and the Trend in the Incidence and Prevalence of Dementia and Alzheimer’s Disease in Taiwan: A 7-Year National Population-Based Study
Table 2
Age- and sex-specific prevalence rate‡ of dementia and Alzheimer's disease (AD) and secular trend in Taiwan, 2004–2010.
Sex and age
Calendar year
Change (%)
Trend test β
2004
2005
2006
2007
2008
2009
2010
Dementia
Male
65–69
1.8
1.9
2.1
2.2
2.3
2.4
2.6
44.4
0.0563
<0.0001
70–74
3.4
3.7
4.1
4.3
4.5
4.6
4.6
35.3
0.0498
<0.0001
75–79
5.7
6.4
7.0
7.6
8.1
8.6
8.8
54.4
0.0711
<0.0001
80–84
8.7
9.9
10.9
11.9
12.9
13.9
14.6
67.8
0.0829
<0.0001
≥85
13.1
15.3
17.6
19.7
21.9
24.6
26.6
103.1
0.1137
<0.0001
Total
4.5
5.1
5.6
6.1
6.6
7.0
7.3
62.2
0.0785
<0.0001
Female
65–69
1.6
1.8
2.0
2.1
2.2
2.3
2.4
50.0
0.0584
<0.0001
70–74
3.4
3.7
4.0
4.3
4.5
4.6
4.8
41.2
0.0563
<0.0001
75–79
6.3
7.1
7.7
8.3
8.8
9.2
9.3
47.6
0.0619
<0.0001
80–84
10.4
11.6
12.8
13.9
15.0
15.8
16.5
58.7
0.0748
<0.0001
≥85
16.1
18.9
21.6
24.3
27.0
29.7
31.9
98.1
0.1091
<0.0001
Total
5.0
5.6
6.2
6.8
7.2
7.7
8.0
60.0
0.0772
<0.0001
Female/male ratio
1.1
1.1
1.1
1.1
1.1
1.1
1.1
AD
Male
65–69
0.6
0.6
0.7
0.7
0.7
0.8
0.8
33.3
0.0465
<0.0001
70–74
1.3
1.4
1.5
1.6
1.6
1.6
1.6
23.1
0.0349
<0.0001
75–79
2.4
2.7
2.9
3.1
3.2
3.4
3.4
41.7
0.0546
<0.0001
80–84
4.2
4.6
4.9
5.3
5.6
6.0
6.2
47.6
0.0646
<0.0001
≥85
6.9
8.0
9.1
9.9
10.9
12.0
12.8
85.5
0.0973
<0.0001
Total
2.0
2.2
2.4
2.5
2.7
2.9
3.0
50.0
0.0658
<0.0001
Female
65–69
0.7
0.8
0.9
0.9
1.0
1.0
1.1
57.1
0.0639
<0.0001
70–74
1.6
1.7
1.9
2.0
2.1
2.1
2.2
37.5
0.0561
<0.0001
75–79
3.2
3.5
3.8
4.1
4.3
4.4
4.5
40.6
0.0575
<0.0001
80–84
5.6
6.1
6.7
7.1
7.6
7.9
8.2
46.4
0.0630
<0.0001
≥85
9.4
11.0
12.4
13.8
15.1
16.4
17.5
86.2
0.0974
<0.0001
Total
2.6
2.8
3.1
3.4
3.6
3.8
4.0
53.8
0.0723
<0.0001
Female/male ratio
1.3
1.3
1.3
1.3
1.4
1.3
1.4
Per 100 people. §Adjusted for age. Change (%): percentage of changes in the prevalence rates of dementia or AD between 2004 and 2010. for linear trend test <0.05.
