Table 1 Demographic characteristics of the participants

Number of subjects

220

50

 Age, years ^a

31 ± 18 [6–70]

36 ± 15 [6–60]

0.55

  6-14, n (%)

56 (25.4%)

12 (24.0%)

0.83

  >14, n (%)

164 (74.5%)

38 (76.0%)

Sex:

  Male, n (%)

109 (49.5%)

21 (42.0%)

0.93

  Female, n (%)

111 (50.5%)

29 (58.0%)

 Current Smokers, n (%)

79 (35.9%)

6 (12.0%)

<0.01