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Table 5 Characteristics and comparison of participants and non-participants of the RECODE trial

From: RECODE: Design and baseline results of a cluster randomized trial on cost-effectiveness of integrated COPD management in primary care

  Participant (n = 961)* Non-participant (n = 588) p-value
Age, years (SD) 68.7 (11.0) 67.8 (11.5) 0.162
Males,% 54.7 46.9 0.003
CCQ    
 Symptoms 2.4 (1.2) 1.9 (1.2) <0.001
 Functional state 1.8 (1.3) 1.5 (1.4) <0.001
 Mental state 0.9 (1.2) 0.7 (1.2) <0.001
Total score 1.9 (1.1) 1.5 (1.1) <0.001
  1. *Values are means (S.D.) unless stated otherwise. ** Of the 1086 RECODE patients, there were 961 CCQ questionnaires available at the time of initial invitation.