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Table 3 Summary statistics of patient characteristics from EHR data and ABS NHS data

From: Assessing the suitability of general practice electronic health records for clinical prediction model development: a data quality assessment

 

EHR data (N = 201,462)

ABS National Health Survey 2014–15 (N = 2,069,060)

 

n

%

95% CI

%

95% CI

Socio-demographics

Age category (years)

     

 45–49

11,477

5.7

5.4 to 6.0

5.6

4.3 to 6.9

 50–54

18,453

9.2

8.8 to 9.5

9.1

7.3 to 10.9

 55–59

24,102

12.0

11.6 to 12.3

13.1

11.2 to 15.0

 60–64

29,745

14.8

14.5 to 15.1

17.6

15.9 to 19.3

 65–69

33,172

16.5

16.2 to 16.8

17.8

16.0 to 19.6

 70–74

27,902

13.8

13.6 to 14.1

13.5

11.7 to 15.3

 75–79

23,078

11.5

11.2 to 11.8

10.0

8.5 to 11.5

 80 + 

33,530

16.6

16.0 to 17.3

13.2

11.2 to 15.2

Sex

     

 Male

78,049

38.7

38.1 to 39.3

35.6

33.3 to 37.9

 Female

123,376

61.2

60.6 to 61.8

64.4

62.1 to 66.7

 Other

37

0.02

0.01 to 0.03

-

-

Remoteness area

     

 Major cities of Australia

111,075

55.4

49.9 to 60.9

63.6

60.7 to 66.4

 Inner regional Australia

62,221

31.1

26.2 to 36.3

23.3

20.1 to 26.6

 Remote Australia

27,098

13.5

10.5 to 17.2

13.1

10.7 to 15.5

Clinical characteristics

     

BMI, mean (SD)

30.1 (6.5)

N/A

N/A

29.3 (8.8)

N/A

OA medication prescription/s

57,090

33.8

32.9 to 34.7

54.9

52.1 to 57.7

Chronic conditions*

     

Hypertension

81,004

44.4

43.5 to 45.3

40.0

37.0 to 42.9

Lipid disorder

58,478

31.2

30.1 to 32.3

26.6

24.1 to 29.1

Ischaemic heart disease (IHD)

23,522

11.8

11.4 to 12.2

6.8

5.2 to 8.3

Asthma

21,757

11.2

10.7 to 11.7

17.2

14.7 to 19.8

Diabetes

27,821

14.1

13.7 to 14.6

15.1

12.9 to 17.3

Chronic obstructive pulmonary disease (COPD)

12,709

6.4

6.0 to 6.8

8.8

7.5 to 10.1

Metastatic solid tumour

33,485

16.9

16.3 to 17.5

26.3

24.2 to 28.4

Depression

35,644

19.6

19.0 to 20.2

11.9

10.1 to 13.7

Anxiety and other neurotic, stress related and somatoform disorders

19,393

11.7

11.2 to 12.2

15.4

13.2 to 17.6

  1. CI  confidence interval
  2. * most commonly occurring chronic conditions as identified by AIHW [20]
  3. Note: Estimates from the NHS have been calculated using replicate weights and the jacknife variance estimator [21]