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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)