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Table 3 Estimates of prevalence per 1000 for 20 chronic conditions (CCs) using different sources.

From: Can we use the pharmacy data to estimate the prevalence of chronic conditions? a comparison of multiple data sources

Chronic Condition

Prevalence Pharmacy Data 2006 (a)

Prevalence Hospital Discharge 2002-06 (b)

Prevalence Registry of Exempt 2006 (c)

National Health Survey 2005 (d)

95% CI

Relative difference between pharmacy data and other sources (%) #

Cardiovascular diseases

226.1

62.9

107.6

201.4

190.8 - 209.1

-10.9

Rheumatologic conditions (inflammations, arthritis, etc.)

87.4

2.6

1.7§

183.3

173.8 - 193.3

109.8

Chronic respiratory illnesses (asthma, COPD, etc.)

47.4

28.8

10.1

88.9

82.5 - 95.5

87.5

Migraine

3.8

n.a.

n.a.

79.7

72.9 - 87.0

1977.2

Psychiatric diseases

38.2

n.a.

3.0*

69.0

63.1 - 74.8

80.7

Paget's disease/other osteoporosis chronic conditions

18.3

n.a.

0.1**

57.3

51.8 - 63.4

212.8

Diabetes

44.1

34.0

52.6

48.0

42.9 - 53.7

19.2

Thyroid disorders

43.9

n.a.

29.4

45.4

40.4 - 51.0

3.4

Malignancies

14.7

39.1

42.0

11.4

8.9 - 14.5

186.1

Epilepsy

18.9

n.a.

2.5

n.a.

 

-87.0

Glaucoma

16.5

n.a.

6.7

n.a.

 

-59.7

Chronic renal diseases

0.8

8.6

4.8

n.a.

 

968.2

Chronic hepatitis and selective malignancies

0.5

n.a.

5.1

n.a.

 

922.3

Parkinson's disease

4.5

n.a.

1.2

1.9

1.0 - 3.4

-57.7

Alzheimer's disease

1.5

5.4°

0.4

4.0

2.7 - 6.0

158.1

Crohn's and Ulcerative colitis

3.9

n.a.

2.1

n.a.

 

-45.6

Psoriasis

2.2

n.a.

2.0

n.a.

 

-7.7

HIV/AIDS

1.0

1.5

0.8

n.a.

 

53.9

Cirrhosis

0.8

1.0

1.1

1.3

0.7 - 2.4

76.9

Tuberculosis

0.4

n.a.

0.3

n.a.

 

-19.5

  1. Lazio region, Italy.
  2. NA: not available or not estimable; °any type of dementia; § only rheumatoid arthritis; *excluded anxiety and depression; **only Paget's disease; # [(max(b,c,d)-a)/a