Skip to main content

Table 1 Characteristics of pre-identified and general population chronically ill samples

From: Standardizing disease-specific quality of life measures across multiple chronic conditions: development and initial evaluation of the QOL Disease Impact Scale (QDIS®)

 

Pre-Identified Disease Group

Pre-Identified Combined (N = 5418)

Gen. Pop. Chronically Ill (N = 4120)

 

Arthritis (N = 1574)

CKD (N = 299)

Cardiovascular (N = 639)

Diabetes (N = 1326)

Respiratory (N = 1580)

Age

 Mean (SD)

62.1 (11.2)

63.5 (12.8)

65.7 (10.7)

60.3 (11.9)

53.0 (16.1)

59.5 (13.7)

50.9 (16.0)

 Median

63

64

66

61

55

61

52

 Range

20–93

18–92

18–97

18–92

18–93

18–97

18–94

% Male

35.5

51.8

56.6

52.0

35.2

42.8

47.0

Race/Ethnicity

 White non-Hispanic

82.5

81.6

84.5

77.6

77.0

79.9

77.3

 Black non-Hispanic

6.9

8.0

5.3

11.1

7.3

7.9

8.9

 Hispanic

5.3

5.0

2.7

6.2

7.6

5.9

8.4

 Other non-Hispanic

5.3

5.4

7.5

5.1

8.1

6.3

5.4

Education

  < High school graduate

2.6

4.7

5.6

2.6

3.4

3.3

7.3

 High school graduate

20.5

11.7

16.3

19.1

17.8

18.4

26.5

 Some college

34.1

41.8

41.9

39.7

38.2

38.0

31.6

 College graduate

42.8

41.8

36.2

38.6

40.6

40.3

34.6

Income

  < $20,000

11.6

15.1

14.9

10.6

13.7

12.5

13.8

 $20,000–39,999

21.6

24.4

26.8

21.9

18.7

21.6

21.4

 $40,000–99,999

47.4

44.8

47.4

52.0

48.0

48.6

41.8

 $100,000+

19.4

15.7

10.9

15.5

19.6

17.3

23.0

Employment Status

 Employed

35.9

23.7

20.0

43.4

47.0

38.4

52.4

 Unemployed

4.0

1.7

2.8

4.8

5.1

4.3

7.0

 Retired due to age

38.0

40.5

42.4

33.0

21.1

32.5

19.3

 Disableda

12.8

24.4

26.5

10.2

12.3

14.3

7.7

 Otherb

8.7

8.7

7.4

7.7

13.9

9.8

13.1

 Missing

0.6

1.0

0.9

0.8

0.5

0.7

0.5

  1. Arthritis includes osteoarthritis (N = 1066) and rheumatoid arthritis (N = 508). Cardiovascular includes angina (N = 214), recent myocardial infarction (N = 98), and congestive heart failure (N = 327). Respiratory includes asthma (N = 1175) and COPD (N = 405)
  2. Abbreviations: CKD chronic kidney disease
  3. aRetired due to disability
  4. bHomemaker, student, other