Table 3 Main outcomes: within and between group differences at 12 months

From: The impact of integrated disease management in high-risk COPD patients in primary care

 

Integrated disease management (n = 72)

Usual care (n = 74)

Between-group difference

Baseline

12 months

Change from baseline

Baseline

12 months

Change from baseline

Adjusted difference (95% CI)

p-Value

COPD assessment test (CAT, 0–40)

Mean

22.6 (6.8)

14.8 (6.0)

−7.8 (5.1)

19.3 (7.3)

22.0 (6.6)

2.7 (5.0)

9.3 (7.8, 10.8)

<0.001

Proportion with CAT improvement >3

63/72 (87.5%)

4/74 (5.4%)

82.0% (72.7%, 91.4%)

<0.001

Clinical COPD Questionnaire (CCQ, 0–6)

Symptoms

3.26 (1.28)

2.19 (1.12)

−1.07 (1.03)

2.82 (1.39)

3.16 (1.36)

0.34 (1.02)

1.27 (0.97, 1.57)

<0.001

Function

2.87 (1.34)

1.92 (1.29)

−0.95 (1.22)

2.15 (1.27)

2.55 (1.30)

0.41 (0.97)

1.10 (0.77, 1.44)

<0.001

Mental

2.92 (1.83)

1.24 (1.45)

−1.67 (1.69)

2.32 (1.76)

2.53 (1.79)

0.21 (1.45)

1.61 (1.17, 2.04)

<0.001

Total

3.04 (1.20)

1.89 (1.07)

−1.14 (1.01)

2.45 (1.28)

2.79 (1.28)

0.34 (0.93)

1.29 (1.00, 1.58)

<0.001

Bristol knowledge questionnaire

Total (%)

41.0 (16.2)

74.9 (18.5)

33.9 (14.2)

41.9 (13.8)

46.2 (16.6)

4.4 (15.4)

29.6 (24.9, 34.2)

<0.001

FEV1

Pre-bronchodilator—litres

1.45 (0.57)

1.52 (0.66)

0.07 (0.24)

1.42 (0.50)

1.40 (0.53)

0.02 (0.21)

0.10 (0.02, 0.18)

0.016

Pre-bronchodilator—% predicted

54.5 (13.9)

57.1 (17.1)

2.6 (9.3)

52.7 (15.3)

51.9 (16.3)

−0.8 (7.5)

3.5 (0.4, 6.5)

0.025

FEV1/FVC

Pre-bronchodilator

55.8 (13.8)

57.3 (12.3)

1.5 (7.6)

53.7 (10.3)

53.3 (11.2)

−0.4 (5.0)

2.2 (0.1, 4.5)

0.044

Severe exacerbations (prednisone and/or antibiotics)

Proportion: One or more severe exacerbations

60 (83.3%)

24 (33.3%)

 

54 (73.0%)

61 (82.4%)

 

−48.9% (−62.5%, −35.3%)

<0.001

Health services utilization

Number of urgent physician visits/year

2.43 (2.23)

0.71 (0.97)

−1.72 (2.35)

1.96 (1.58)

2.16 (2.16)

0.20 (2.68)

1.46 (0.90, 2.02)

<0.001

Proportion: one or more urgent physician visits

60 (83.3%)

30 (41.7%)

 

60 (81.1%)

53 (71.6%)

 

−30.2% (−45.7%, −14.7%)

<0.001

Number of ED visits/year

0.57 (0.84)

0.17 (0.44)

−0.40 (0.93)

0.47 (1.01)

0.47 (0.71)

0.00 (1.11)

0.31 (0.12, 0.51)

0.002

Proportion: one or more ED visits

30 (41.7%)

10 (13.9%)

 

20 (27.0%)

28 (37.8%)

 

−23.6% (−37.3%, −9.9%)

0.001

Number of hospitalizations year

0.26 (0.65)

0.15 (0.55)

−0.11 (0.83)

0.23 (0.45)

0.26 (0.64)

0.03 (0.62)

0.10 (−0.09, 0.29)

0.305

Proportion: one or more hospitalizations

13 (18.1%)

8 (11.1%)

 

16 (21.6%)

13 (17.6%)

 

−5.8% (−17.8%, 5.1%)

0.283

  1. COPD chronic obstructive pulmonary disease, ED Emergency Department, FEV1 forced expiratory volume in one second, FVC forced vital capacity