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Table 2 Differences in COPD hospitalizations, CCQ and MRC scores before and after the case management period

From: Effectiveness of case management in the prevention of COPD re-admissions: a pilot study

Outcome

Usual care

Case management

Mean difference

P value

Hospitalizations, rate per year

3.4 (2.6–4.5)

1.5 (0.9–2.5)

2.25 (1.3 to 3.9)a

0.004

Duration of hospitalization, days

7.49 (5.8–9.2)

7.53 (5.1–10.0)

0.04 (− 1.7 to 1.8)

0.961

Total days in hospital per patient per year

26 (17.2–34.8)

12.3 (5.3–19.4)b

− 13.7 (− 24.5 to − 2.8)

0.013

CCQ total score

3.3 (2.8–3.8)

2.4 (1.9–2.8)c

− 1.0 (− 1.6 to − 0.4)

0.001

CCQ: symptoms domain

3.3 (2.6–3.9)

2.5 (2.0–3.0)c

− 0.7 (− 1.3 to − 0.2)

0.009

CCQ: functional domain

4.1 (3.5–4.6)

2.8 (2.2–3.3)c

− 1.3 (− 2.1 to − 0.6)

0.001

CCQ: mental domain

2.0 (0.9–3.1)

1.2 (0.5–1.9)c

− 0.8 (− 1.8 to 0.2)

0.117

MRC

4.3 (3.7–4.9)

3.9 (3.2–4.6)c

− 0.4 (−0.9 to 0.1)

0.114

  1. Values are presented as means (95% confidence interval), unless stated otherwise
  2. CCQ Clinical COPD Questionnaire, MRC Medical Research Council Dyspnea Scale
  3. aRate ratio
  4. bOne patient included who died after 3 months; value multiplied by 4
  5. cMean value after 20 weeks of case management, includes last measurements of deceased patient (after 8 weeks) and of dropped-out patient (after 12 weeks)