Table 1

Number of women contacted and invited to take part in the study, number recruited, and number of women not smoking after 12 weeks

Mothers of asthmatic childrenMothers of children without asthmaWomen without children
No. contacted568996
No. recruited (% of those contacted)19 (34)20 (22.5)16 (16.5)
No. not smoking after 12 weeks756
No. needed to contact in order to achieve one non-smoker after 12 weeks81816