Table 3 RRRs* for the likelihood of 10-11 year old children in Wales providing 'low' or 'high'** cotinine concentrations post-legislation

Whole sample unadjusted (n = 2839)

1.32 (1.09 to 1.59)

<0.01

1.09 (0.90 to 1.31)

0.38

Whole sample adjusted for age, FAS and time of day data collected

(n = 2786)

1.39 (1.14 o 1.69)

<0.01

1.11 (0.92 to 1.34)

0.28