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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).