Table 1.
Basic feature of COPD patients
| Variable | N | (%) |
|---|---|---|
| Sex | ||
| male |
3,930 |
47.8 |
| female |
4,287 |
52.2 |
| Age (years) | ||
| <40 |
620 |
7.6 |
| 40~ |
2,566 |
31.2 |
| 60~ |
4,297 |
52.3 |
| 80~ |
734 |
8.9 |
| Marital status | ||
| unmarried |
172 |
2.1 |
| married |
5,890 |
71.7 |
| divorced |
43 |
0.5 |
| widowed |
2,112 |
25.7 |
| Living arrangement | ||
| live alone |
1,018 |
12.4 |
| live with spouse |
4,547 |
55.3 |
| live with children |
2,315 |
28.2 |
| Others |
337 |
4.1 |
| Education |
|
|
| illiterate |
4,665 |
56.8 |
| primary school |
1739 |
21.2 |
| junior school |
1,090 |
13.3 |
| high school |
723 |
8.8 |
| Household income per month (yuan) | ||
| <300 |
3,541 |
43.1 |
| 300~ |
2,337 |
28.4 |
| 500~ |
1,613 |
19.6 |
| 1,000~ |
726 |
8.8 |
| Disease history (years) | ||
| <5 |
796 |
9.7 |
| 5~ |
1,048 |
12.8 |
| 10~ |
1,928 |
23.5 |
| 20~ |
3,903 |
47.5 |
| 30~ | 542 | 6.6 |