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Table 2 Weighted prevalence estimates of demographic factors among respondents with chronic bronchitis or emphysema and controls

From: Lifestyle and perceived health in subjects with chronic bronchitis or emphysema: a cross-sectional study

  Respondents with bronchitis or emphysema Controls P
Age (%)    
20-29 years 11.0 15.6 0.000
30-39 years 6.1 15.7  
40-49 years 12.4 16.1  
50-59 years 18.4 18.3  
60-69 years 17.4 13.9  
70+ years 34.7 20.1  
Mean ± SD (years) 57.98 ± 17.65 50.72 ± 17.95 0.000
Sex (%)    
Female 62.3 55.6 0.000
Male 37.7 44.4  
Education (%)    
Elementary 51.3 40.6 0.000
Secondary 39.4 47.2  
University 9.4 12.2  
Type of settlement (%)    
Urban 48.0 48.2 0.904
Other 52.0 51.8  
Wealth index (%)    
Poorest 26.5 22.2 0.022
Second quintile 23.1 21.8  
Third quintile 19.0 21.7  
Fourth quintile 17.3 18.3  
Richest 14.1 15.9