Table 4

Results of cotinine in urine before and after the intervention
Outcome groups Base-line value Follow-up value Drop-outs
n = 73 n = 73
n = 9
<6 ng/ml** >6 ng/ml <6 ng/ml** >6 ng/ml
Quit smoking (n = 9) 6 3 8 1*
From indoor smoking to outdoor smoking (n = 9) 5 1 5 1* 3
Indoor smoking only (n = 20) 6 13 11 8 1
From outdoor smoking to indoor smoking (n = 7) 4 2 4 2 1
Outdoor smoking only (n = 37) 22 11 26 7 4
Summary 43 30 54 19 9

*The children often meet smoking grandparents.

A value <6 ng/ml was estimated as the limit of non-measurable ETS exposure.

Carlsson et al.

Carlsson et al. BMC Pediatrics 2013 13:76   doi:10.1186/1471-2431-13-76

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