Table 1.
Characteristics of the study population in rural and in urban areas in 2008/2009
| Total area (N = 402) | Rural area (N = 190) | Urban area (N = 212) | p-Value a | |
|---|---|---|---|---|
| Age (means (sd)) |
74.1 (2.6) |
74.0 (2.5) |
74.2 (2.6) |
0.3259 |
| Years of schooling (%) |
|
|
|
0.8655 |
| <10 |
17.0 |
18.1 |
16.1 |
|
| =10 |
51.0 |
50.5 |
51.2 |
|
| >10 |
32.0 |
31.4 |
32.7 |
|
| Smoking (%) |
|
|
|
0.0125 |
| Current |
3.0 |
1.1 |
4.7 |
|
| Former |
15.7 |
12.1 |
18.9 |
|
| Never |
81.3 |
86.8 |
76.4 |
|
| Current passive smoking (%) |
38.6 |
36.8 |
40.3 |
0.4797 |
| Exposure to indoor mould (%) |
12.7 |
8.9 |
16.0 |
0.0330 |
| Asthmab (%) |
9.7 |
8.5 |
10.9 |
0.4214 |
| COPDb (%) |
3.2 |
3.1 |
3.3 |
0.9351 |
| Chronic bronchitisb (%) |
11.0 |
11.6 |
10.5 |
0.7109 |
| Change of home address (%) | 14.2 | 11.1 | 17.0 | 0.0889 |
ap-Value of t-test or Wilcoxon test for the difference of means between rural and urban area.
bReported as doctor-diagnosed diseases.