@article {Conway90, author = {T L Conway and S I Woodruff and C C Edwards and M F Hovell and J Klein}, title = {Intervention to reduce environmental tobacco smoke exposure in Latino children: null effects on hair biomarkers and parent reports}, volume = {13}, number = {1}, pages = {90--92}, year = {2004}, doi = {10.1136/tc.2003.004440}, publisher = {BMJ Publishing Group Ltd}, abstract = {Objective: To evaluate the effectiveness of a lay delivered intervention to reduce Latino children{\textquoteright}s exposure to environmental tobacco smoke (ETS). The a priori hypothesis was that children living in households that were in the intervention group would have lower exposure over time than measurement only controls. Design: A two group, randomised control trial was conducted. Setting: Areas of San Diego county with a large Latino population. Participants: 143 Latino parent{\textendash}child pairs. Intervention: Trained bicultural and bilingual Latina lay community health advisors, or promotoras, conducted problem solving aimed at lowering the target child{\textquoteright}s exposure to ETS in the household. Six home and telephone sessions were delivered by the promotoras over a four month period. Main outcome measures: Outcome measures were collected at baseline, immediately post-intervention, three months post-intervention, and 12 months post-intervention. Four outcomes were considered: (1) parent{\textquoteright}s paper-and-pencil reports of the child{\textquoteright}s past month exposure; (2) hair samples from the child analysed for past month nicotine; (3) hair samples from the child analysed for past month cotinine; and (4) per cent confirmed reducers. Results: There were no significant condition-by-time interactions, the term indicative of a differential intervention effect. Significant or near significant time main effects were seen for children{\textquoteright}s hair cotinine, per cent confirmed reducers, and, in particular, parent reports of exposure. Conclusions: Applying a lay promotora model to deliver the behavioural problem solving intervention unfortunately was not effective. A likely explanation relates to the difficulty of delivering a relatively complex intervention by lay women untrained in behaviour change theory and research methods.}, issn = {0964-4563}, URL = {https://tobaccocontrol.bmj.com/content/13/1/90}, eprint = {https://tobaccocontrol.bmj.com/content/13/1/90.full.pdf}, journal = {Tobacco Control} }