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Table 2 Description of diabetes cohorts

From: Predictive performance of comorbidity measures in administrative databases for diabetes cohorts

 

Cohort 1a(n=29,058)

Cohort 2 (n=41,925)

 

20-44 (n=3,901)

45-64 (n=10,659)

65-74 (n=7,757)

75+ (n=6,741)

All

20-44 (n=3,901)

45-64 (n=10,659)

65-74 (n=7,757)

75+ (n=6,741)

All

Demographics b

Age, mean (SD)

36.2 (6.3)

55.5 (5.6)

69.5 (2.8)

80.6 (4.6)

62.5 (15.0)

36.8 (5.8)

55.3 (5.6)

69.6 (2.9)

81.0 (4.8)

62.4 (15.0)

Female

52.1

44.1

46.0

53.5

47.9

52.3

43.9

44.9

54.5

47.8

Urban

58.3

53.0

48.7

46.3

51.0

55.6

53.4

51.1

47.8

51.8

  Missing

<0.1

0.2

0.1

<0.1

0.1

0.1

0.2

0.1

<0.1

0.1

Income Quintile

          

  Q1 (lowest)

32.7

26.1

25.8

27.1

27.1

32.5

25.7

24.4

25.0

26.1

  Q2

22.0

23.2

23.2

24.7

23.4

23.2

22.1

23.4

23.8

23.0

  Q3

15.4

16.2

17.1

19.1

17.0

14.4

16.4

17.5

19.1

17.0

  Q4

13.5

14.8

15.1

12.8

14.2

13.0

15.1

15.4

14.6

14.8

  Q5 (highest)

15.4

18.2

17.4

15.1

16.9

16.0

19.5

18.0

16.4

17.9

  Missing

0.9

1.5

1.5

1.1

1.3

1.0

1.3

1.4

1.2

1.2

Recent diagnosis

27.5

24.3

21.7

21.3

23.4

16.0

12.6

9.6

8.3

11.3

Outcomes (%) c

AMI

0.5

1.6

2.9

3.3

2.2

0.4

0.9

1.9

3.0

1.6

Stroke

0.3

1.0

2.7

3.7

2.0

0.2

0.7

1.8

2.9

1.4

LEA

0.3

0.8

1.2

1.3

1.0

0.3

0.9

0.9

0.6

0.8

ESRD

0.7

0.5

0.4

0.2

0.4

0.3

0.5

0.5

0.3

0.4

Mortality

0.9

4.0

10.0

22.0

9.4

1.2

3.0

8.4

21.5

8.4

Hosp., any

34.3

43.7

57.6

64.7

51.0

31.7

40.9

55.2

61.8

48.1

Hosp., diabetes

18.6

21.3

26.6

30.2

24.4

14.5

16.8

22.0

24.0

19.5

Comorbidity summary measures, mean (SD)

# diagnoses

6.0 (4.8)

6.2 (4.8)

6.7 (4.7)

7.4 (4.8)

6.6 (4.8)

6.2 (5.7)

6.8 (6.0)

7.9 (6.6)

8.9 (6.8)

7.5 (6.4)

Charlson score

0.4 (0.8)

0.6 (1.2)

0.9 (1.5)

1.2 (1.7)

0.8 (1.4)

0.4 (0.8)

0.6 (1.2)

1.0 (1.7)

1.3 (1.9)

0.8 (1.5)

# drugs

3.1 (3.2)

4.2 (3.5)

5.3 (3.6)

5.9 (3.8)

4.7 (3.7)

3.1 (3.3)

4.5 (3.7)

5.9 (3.8)

6.4 (4.0)

5.1 (3.9)

CDS

2.5 (3.1)

3.9 (3.5)

5.0 (3.6)

5.3 (3.6)

4.3 (3.6)

2.8 (3.4)

4.4 (3.8)

5.6 (3.7)

5.7 (3.7)

4.8 (3.8)

  1. aCohort 1 was defined using administrative data from fiscal years 1996/97 to 1997/98 and Cohort 2 was defined using data from 1996/97 to 2001/02; bNumbers reported are percentages unless otherwise indicated; cOutcomes were defined over a two-year observation period, SD Standard Deviation, Hosp Hospitalization, AMI Acute Myocardial Infarction; LEA Lower Extremity Amputation; ESRD End-Stage Renal Disease, CDS Chronic Disease Score.
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BMC Health Services Research

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