Skip to main content

Advertisement

Table 1 Characteristics of study participants

From: Long-term air pollution exposure and living close to busy roads are associated with COPD in women

Participants (N = 4757) n/N %  
Time of residency ≥ 5 years under    
current address 4255/4749 89.6  
Smoking status    
Never -smoker without ETS 1762/4396 40.1  
Never-smoking with ETS 1472/4396 33.5  
Ex-smoker 384/4396 8.7  
Current smoker    
<15 pack years 269/4396 6.1  
15–30 pack years 282/4396 6.4  
>30 pack years 227/4396 5.7  
Single room heating with fossil fuels 1039/4653 21.8  
Occupational exposure to dust/fumes 552/4757 11.6  
Occupational exposure to extreme temperatures 469/4757 9.9  
Social status    
Low 1401/4702 29.8  
Medium 2248/4702 47.8  
High 1051/4702 22.4  
  N mean SD
Age [years] 4755 54.5 0.6
Body Mass Index [kg/m2] 3844 27.7 4.7
Height [cm] 3846 162.1 5.8