Table 5 Proportion (%) of COPD patients in the Medicare and Commercial Cohorts Using ≥1 healthcare services, and mean number of each form of health service utilized per COPD patient, stratified by complexity of illness

Office consultation/visit

98.9

98.6

98.6

97.3

95.4

96.4

Mean per patient

9.41

11.52

15.06

10.3

10.9

13.9

Standard chest X-ray

62.7

77.5

88.0

63.1

74.5

90.9

Mean per patient

1.25

2.45

6.37

1.3

2.4

6.3

Electrocardiogram

50.6

56.5

71.0

60.7

66.3

83.1

Mean per patient

1.14

1.57

2.63

1.6

2.2

3.9

Pulmonary function

34.3

40.4

51.4

26.7

32.8

42.5

Mean per patient

1.02

1.47

2.33

0.9

1.3

1.9

Respiratory-related equipment/supplies

5.41

36.0

53.3

8.52

50.4

52.5

Mean per patient

0.27

4.63

8.63

0.9

9.5

10.8

Heart echo exam

18.4

25.5

41.9

29.4

37.6

57.7

Mean per patient

0.68

1.06

2.00

1.1

1.5

2.8

Chest/thorax CT/MRI

11.4

24.5

47.8

12.5

23.6

49.1

Mean per patient

0.19

0.42

1.14

0.2

0.4

1.0

Cardiovascular stress test

18.7

18.6

21.3

18.7

17.8

21.9

Mean per patient

0.32

0.32

0.38

0.3

0.3

0.4

Outpatient respiratory therapy services

10.3

25.7

27.1

4.95

20.6

20.7

Mean per patient

0.16

0.69

1.00

0.1

1.3

1.4

Cardiac catheterization/coronary angiography

7.48

8.92

13.8

5.05

7.68

12.4

Mean per patient

0.51

0.61

0.94

0.3

0.5

0.8

Sleep studies

1.72

4.43

14.7

0.35

1.51

4.68

Mean per patient

0.03

0.08

0.31

0

0

0.1

Bronchoscopy

0.32

2.88

13.2

0.16

2.0

10.1

Mean per patient

0

0.07

0.35

0

0

0.2