Last week's blog was about a large scale social social network. Here it is up close and personal: the target group were 6th and 7th grade pupils (aged about 12) and their mothers.
The intervention was added on to a standard smoking intervention ,
"The central component of the Linking Lives intervention was a written manual that focused on effective communication and parental monitoring strategies for preventing adolescent tobacco use. The manual consisted of 9 short modules written at a fourth-grade reading level and 2 tobacco-related homework activities for parents to use at home with their adolescent."
There is some good process measurement of the intended mechanism (e.g. intervention children more likely to see their mothers as trustworthy) with a primary outcome of 'ever smoked'. This was assessed by self report. On this measure the trial was very successful with a 42% reduction in 'ever smoked'. At baseline about 5% had ever smoked; at follow up 10% of the intervention group and 15% of the comparison group had ever smoked. Follow up was for 15 months, so this reports the situation in 14 year-olds. I guess the numbers will rise as they get older.
The intervention was directed at Latino and African American groups. I wonder whether mother-child relationships in those communities are stronger / weaker / different from mother-child relationships in other communities.