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Table 1 Characteristics of study subjects and group averages of lung function parameters over the survey periods

From: Air pollution and lung function among susceptible adult subjects: a panel study

   Panel
   COPD Asthma IHD
Variable (unit) Gender Obs Mean SD Obs Mean SD Obs Mean SD
Age (years) Male 7 67 11 5 33 15 6 63 11
  Female 4 65 7 6 48 10 1 64 -
  Total 11 67 9.1 11 41 14 7 64 10
BMI (kg/m2) Male 7 27 6 5 25 4 6 26 3
  Female 4 25 3 6 23 3 1 29 -
  Total 11 26 5 11 24 3 7 26 3
FVC (% predicted) Male 108 63 10 38 113 11 139 81 10
  Female 63 61 9 70 116 12 31 80 4
  Total 171 63 10 108 115 12 170 81 9
FEV 1 (% predicted) Male 108 45 10 38 94 13 139 84 10
  Female 63 47 10 70 96 18 31 84 5
  Total 171 45 10 108 95 16 170 84 10
NO in exhaled breath (ppb) Male     37 66 40    
  Female     70 42 27    
  Total     107 50 34    
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