Table 2. Prevalence of COPD during the period from 2007 to 2015 (%).
| 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|
| Age, yr | |||||||||
| ≥40 | 15.6 | 13.4 | 11.0 | 13.1 | 13.2 | 14.6 | 13.5 | 14.2 | 13.4 |
| ≥65 | 34.0 | 31.1 | 23.6 | 31.9 | 27.8 | 30.2 | 31.5 | 31.1 | 28.1 |
| ≥40* | 15.3 | 13.1 | 10.5 | 12.3 | 12.5 | 13.7 | 12.8 | 13.4 | 12.3 |
| Age group, yr | |||||||||
| 40–49 | 5.4 | 4.8 | 3.2 | 2.8 | 4.0 | 4.3 | 3.5 | 5.3 | 4.1 |
| 50–59 | 14.3 | 9.0 | 9.1 | 9.6 | 10.7 | 11.4 | 9.3 | 9.6 | 9.7 |
| 60–69 | 21.5 | 21.4 | 17.7 | 20.3 | 21.7 | 24.9 | 22.1 | 20.6 | 21.2 |
| ≥70 | 38.8 | 34.8 | 26.2 | 35.8 | 29.3 | 31.6 | 35.2 | 35.9 | 30.6 |
| Income | |||||||||
| Low | 17.9 | 14.6 | 12.6 | 14.5 | 13.3 | 12.9 | 15.0 | 15.5 | 14.6 |
| Low–middle | 18.3 | 13.2 | 10.3 | 14.4 | 13.9 | 17.1 | 11.8 | 12.6 | 15.0 |
| Middle–high | 14.9 | 11.8 | 10.2 | 11.0 | 12.9 | 15.6 | 15.5 | 15.0 | 11.8 |
| High | 10.2 | 10.7 | 10.5 | 12.5 | 11.9 | 13.3 | 11.3 | 13.5 | 12.2 |
*Age-standardized prevalence (see “Materials and Methods”).
COPD: chronic obstructive pulmonary disease.