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Table 2 Physical (PCS-12) and mental (MCS-12) component summaries related to the use of oxygen therapy and the utilization of health resources in the past year

From: Negative impact of chronic obstructive pulmonary disease on the health-related quality of life of patients. Results of the EPIDEPOC study

  No. of cases PCS-12 MCS-12
Oxygen therapy:    
   No 3,131 (84.8%) 32.4 (31.3; 33.5) 45.8 (44.4; 47.2)
   Yes 562 (15.2%) 30.3 (29.1; 31.6) 43.7 (42.1; 45.3)
   P   0.019 0.049
No of visits to primary care:    
   1 to 5 1,941 (52.3%) 32.9 (31.3; 34.5) 46.4 (44.3; 48.4)
   5 to 10 1,140 (30.9%) 31.0 (29.5; 32.4) 44.2 (42.3;46.0)
   Over 10 612 (16.6%) 31.0 (29.7; 32.3) 44.6 (42.9; 46.2)
   P   0.130 0.241
No. of visits to pneumology:    
   None 883 (23.9%) 32.8 (30.9; 34.8) 48.7 (46.2; 51.1)
   1 to 4 2,711 (73.4%) 31.1 (30.3; 32.0) 44.7 (43.6; 45.8)
   Over 4 99 (2.7%) 31.0 (28.9; 33.1) 41.6 (38.9; 44.2)
   P   0.277 0,000
No. of visits to E.R.:    
   None 1,481 (40.1%) 34.8 (32.7; 36.9) 48.2 (45.5; 50.8)
   1 to 2 1,508 (40.8%) 31.5 (30.0; 33.1) 45.6 (43.6; 47.6)
   3 to 4 466 (12.6%) 30.2 (28.8; 31.7) 45.0 (43.2; 46.8)
   Over 4 238 (6.4%) 30.9 (29.2; 32.7) 41.8 (39.6; 44.0)
   P   0.004 0.003
No. of hospital admissions:    
   None 2,544 (68.9%) 33.7 (32.5;35.0) 47.4 (45.8; 49.0)
   1 755 (20.4%) 32.1 (30.5; 33.7) 43.1 (41.1; 45.1)
   2 257 (7.0%) 29.2 (27.4; 31.1) 44.3 (42.1; 46.6)
   Over 2 137 (3.7%) 29.5 (27.2; 31.7) 43.8 (41.0; 46.6)
   P   0.000 0.006
  1. Variables expressed as mean (95% CI).