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Table 2 Crude, age-adjusted, and age- and sex-adjusted prevalence of dementia and cognitive impairment (CI).

From: Prevalence of cognitive impairment in individuals aged over 65 in an urban area: DERIVA study

 

Crude

Age-adjusteda

Age, sex ajusteda

No. individualsb

 

PP

PE

95 CI

PP

95 CI

PP

95 CI

Count

95 CI

CI (Dementia+ CIND)

      

Male

14/116

12,1

6,1 18,0

10,7

4,6-16,9

    

Female

48/211

22,7

17,1-28,4

19,1

12,9-25,2

    

Both

62/327

19,0

14,7-23,2

16,1

11,6-20,6

14,9

10,6-19,2

51

36-65

Age-group

         

65-69

9/69

13,0

5,1-21,0

      

70-74

8/72

11,1

3,9-18,4

      

75-79

9/75

12,0

4,6-19,4

      

80-84

15/63

23,8

13,3-34,3

      

≥ 85

21/48

43,8

29,7-57,8

      

CIND

         

Male

10/116

8,6

3,5 - 13,7

8,1

2,5-13,6

    

Female

38/211

18,0

12,8 - 23,2

15,1

9,6-20,6

    

Both

48/327

14,7

10,8 - 18,5

11,4

7,5-15,4

11,6

7,7-15,5

39

26-53

Age-group

         

65-69

8/69

11,6

4,0-19,1

      

70-74

7/72

9,7

2,9-16,6

      

75-79

3/75

4,0

0,0-8,4

      

80-84

12/63

19,0

9,4-28,7

      

≥ 85

11/48

22,9

11,0-34,8

      

Dementia

         

Male

4/116

3,4

0,1 - 6,8

2,7

0,0 - 5,3

    

Female

10/211

4,7

1,9 - 7,6

4,0

1,3 - 6,8

    

Both

14/327

4,3

2,1 - 6,5

3,4

1,5 - 5,3

3,3

1,4 - 5,2

11

5-18

Age-group

         

65-69

1/69

1,4

0,0 - 4,3

      

70-74

1/72

1,4

0,0 - 4,1

      

75-79

6/75

8,0

1,9 - 14,1

      

80-84

3/63

4,8

0,0 - 10,0

      

≥ 85

3/48

6,3

0,0 - 13,1

      
  1. aAge standardization weights European Standard: 36.4, 27.3, 18.2, 9.1 and 9.1 for 65-69, 70-74, 75-79, 80-84 and ≥85, respectively; sex standardization weight: 0.50 (sources: http://www.wmpho.org.uk/localprofiles/metadata.aspx?id=META_EUROSTD) [26];
  2. bEstimated number of subjects in hundreds with de disease based on age- and sex-adjusted prevalence (Salamanca h ≥65 years 2009 estimated population: 34.020h. (source: Castilla and León Regional Health Service lists. CIND: cognitive impairment not dementia; CI, confidence interval; PE, prevalence point-estimate; PP, crude prevalence ratio (cases divided by population).