Table 1.
Demographic characteristics of COPD hospital admissions from January 1, 2013, to February 28, 2017, in Beijing, China
| N | % | |
|---|---|---|
| Total | 73,076 | |
| Age (years) | ||
| ≤75 | 23,089 | 31.6 |
| >75 | 49,987 | 68.4 |
| Sex | ||
| Male | 42,820 | 58.6 |
| Female | 30,256 | 41.4 |
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