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Table 1 Charachteristis of subjects in ECRHS II, and mean physical component summar (PCS) and mental component summary (MCS) values according to the subjects characteristics.

From: Respiratory symptoms in adults are related to impaired quality of life, regardless of asthma and COPD: results from the European community respiratory health survey

    PCS MCS
   n Mean (SD) p Mean (SD) p
COPD         
  GOLD stage I 236 48.7 (9.9) < 0.001 49.5 (10.4) 0.406
  GOLD stage II 90 46.1 (10.0)   49.6 (10.9)  
  GOLD stage III/IV 10 34.6 (11.7)   54.9 (7.4)  
Asthma         
  No 5368 50.5 (8.8) < 0.001 50.2 (10.4) < 0.001
  Yes 598 45.6 (12.0)   48.1 (12.4)  
Gender         
  Female 3075 49.5 (9.8) < 0.001 48.9 (11.3) < 0.001
  Male 2934 50.5 (8.8)   51.2 (9.7)  
Age in tertiles         
  28-39 years 2000 51.3 (8.3) < 0.001 49.6 (10.7) < 0.001
  39.1-47 years 2021 50.2 (8.3)   49.6 (10.8)  
  47.1-56.5 years 1988 48.4 (10.3)   50.8 (10.4)  
Smoking         
  Never 2541 50.4 (9.3) < 0.001 50.6 (10.3) < 0.001
  Ex 1678 50.2 (9.0)   50.3 (10.1)  
  Current 1737 49.3 (9.7)   48.8 (11.5)  
Occupation         
  Managers and professionals 1829 51.2 (8.5) < 0.001 50.0 (10.1) < 0.001
  Technicians 1115 50.9 (8.3)   50.3 (10.3)  
  Other non manual 1492 49.7 (9.6)   49.4 (11.3)  
  Manual 1185 48.6 (10.0)   51.1 (10.3)  
  Non classified 388 47.6 (11.1)   48.4 (11.9)  
Body Mass Index        
  < 20 2739 51.3 (8.4) < 0.001 49.5 (10.7) < 0.001
  20-24.9 253 50.6 (9.3)   47.8 (11.3)  
  25-29.9 2106 49.4 (9.4)   50.9 (10.1)  
  30+ 773 47.0 (11.0)   50.5 (11.4)  
Comorbidity         
  No 2750 52.0 (7.5) < 0.001 51.3 (9.2) < 0.001
  Yes 1996 47.8 (10.7)   48.0 (12.0)  
Atopy         
  No 3978 49.9 (9.5) 0.359 49.7 (10.9) 0.064
  Yes 1565 50.2 (9.1)   50.7 (9.9)  
Bronchial hyperresponsiveness        
  No 3961 50.9 (8.6) < 0.001 50.3 (10.3) < 0.001
  Yes 577 48.9 (9.9)   48.0 (11.8)  
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