Characteristics of COPD Patients Enrolled into Rehabilitation Programme in Copenhagen
Table 2
Sociodemographic characteristics of COPD patients from different group.
Outcome
Rehabilitation group ()
Comparison group ()
P value
Age*, mean (SD)
70.5 (8.8)
70.0 (12.4)
0.56
Gender, percentage
Male
31.4
41.5
0.03
Female
68.6
58.5
Income**, percentage
First quartile
21.2
25.1
0.10
Second quartile
17.8
25.2
Third quartile
29.7
24.8
Fourth quartile
31.4
24.9
Wealth***, percentage
First quartile
21.2
25.1
0.002
Second quartile
18.6
25.2
Third quartile
20.3
25.2
Fourth quartile
39.8
24.5
Ethnicity, percentage
Danish
94.9
91.7
0.21
Immigrant/descendent
5.1
8.3
Civil status, percentage
Single
63.3
69.1
0.20
Married/partnership
36.4
30.9
Employment, percentage
Working
10.2
12.0
0.55
Retired
89.0
81.9
Outside the workforce
0.9
6.1
Education, percentage
Primary/vocational
76.3
75.5
<0.0001
High school/higher education
22.0
9.9
Not specified
1.7
14.6
n: sample size; SD: standard deviation.
*For rehabilitation group in a year when rehabilitation took place, for comparison group in 2005; **personal net income per month; ***personal net economical values, like real estate, capital, shares, and so forth. Notes: (1) quartiles were calculated on the basis of the data from the entire sample: ; (2) for employment and education, variables have been combined to make the chi-square tests valid: for employment, retired tested against not retired; for education, high school/higher education tested against not high school/higher education.