Table 1 Demographic characteristics of COPD deaths in Guangzhou, China, 2007–2011.

From: The burden of COPD mortality due to ambient air pollution in Guangzhou, China

Factor

Groups

COPD deaths (%)

Age group

<65 years

527 (5.2)

≥65 years

9 568 (94.8)

Gender

Male

6 063 (60.1)

Female

4 032 (39.9)

Educational attainment#

Low

7154 (73.2)

High

2624 (26.8)

Total

 

10 095 (100.0)

  1. #There were 317 subjects for whom information about educational attainments was missing, so we calculated the proportion as the number of each category divided by the sum of two categories.
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