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Table 9 Differences in exhaled CO at T1 and T2 in the total sample and in the current smokers group

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

Exhaled CO

T1

T2

Total sample (N = 258)

0.86 (SD 1.73)

0.68 (SD 1.91)

Current smokers (N = 43)

3.09 (SD 1.36)

3.92 (SD 1.52)