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Table 4 Exhaled CO data

From: A pilot study with early adolescents: dealing with diet, tobacco and air pollution using practical experiences and biological markers

 

No.

Ex-CO* at T1

P

Smoking status

 Not smoking

209

0.43 (± 0.83)

t(45.408) = 5.61, p < 0.01

 Current smokers

45

3 (± 3.05)

Sex

   

 Male

82

0.56 (± 1.03)

t(250.85) = −2.47, p < 0.05

 Female

172

1.03 (± 2.02)

Sex/Current smokers

 Male

9

2.33 (± 1.58)

t(43) = −0.72, p = 0.47

 Female

36

3.17 (± 3.3)

  1. *Ex-CO data are expressed in parts per million (ppm)