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Table 4 Prevalence by age group and type of classification (clinical and pathological) in the Spanish population

From: Fitting the epidemiology and neuropathology of the early stages of Alzheimer’s disease to prevent dementia

  

Clinical classification a

Pathological classification b

Age group

Population

Preclinical

Prodromal

Dementia

Thal1

Thal2

Thal3

Number

       

40 to 44

2,981,900

252,700

800

0

253,500

16,900

9,400

45 to 49

3,530,900

388,400

4,900

0

393,300

47,200

19,800

50 to 54

3,109,400

431,800

9,400

1,100

442,300

93,600

31,600

55 to 59

2,620,100

517,600

19,400

3,200

540,200

172,400

49,900

60 to 64

2,438,200

739,200

43,500

9,200

791,900

336,900

82,400

65 to 69

2,091,000

929,800

79,800

17,800

1,027,400

461,000

120,900

70 to 74

1,705,800

817,900

148,900

31,300

998,100

583,200

178,600

75 to 79

1,653,700

699,100

291,800

58,200

1,049,100

814,400

266,400

80 to 84

1,218,300

329,500

418,600

90,500

838,600

709,500

277,300

85 to 89

659,500

67,200

330,800

90,400

488,400

416,600

195,600

90 to 94

215,100

14,100

97,300

52,200

163,600

136,000

74,700

>95

38,400

2,700

9,100

16,400

28,200

22,800

14,100

Total >40

22,262,300

5,190,000

1,454,300

370,300

7,014,600

3,810,500

1,320,700

Total >60

10,020,000

3,599,500

1,419,800

366,000

5,385,300

3,480,400

1,210,000

Percentage

       

40 to 44

100.0

8.5

0.0

0.0

8.5

0.6

0.3

45 to 49

100.0

11.0

0.1

0.0

11.1

1.3

0.6

50 to 54

100.0

13.9

0.3

0.0

14.2

3.0

1.0

55 to 59

100.0

19.8

0.7

0.1

20.6

6.6

1.9

60 to 64

100.0

30.3

1.8

0.4

32.5

13.8

3.4

65 to 69

100.0

44.5

3.8

0.9

49.1

22.0

5.8

70 to 74

100.0

47.9

8.7

1.8

58.5

34.2

10.5

75 to 79

100.0

42.3

17.6

3.5

63.4

49.2

16.1

80 to 84

100.0

27.0

34.4

7.4

68.8

58.2

22.8

85 to 89

100.0

10.2

50.2

13.7

74.1

63.2

29.7

90 to 94

100.0

6.6

45.2

24.3

76.1

63.2

34.7

>95

100.0

7.0

23.7

42.7

73.4

59.4

36.7

Total >40

100.0

23.3

6.5

1.7

31.5

17.1

5.9

Total >60

100.0

35.9

14.2

3.7

53.7

34.7

12.1

  1. aData for clinical stages are not aggregated. bData for pathological classification prevalence are aggregated.