Does education really alter adolescent sexualbehaviour?

摘要

We were surprised that Kirby was so quick to advocate that programmes such as Talking Parents, Healthy Teens be introduced generally to the workplace. We have some methodological concerns.The authors fail to comment on why, according to the published protocol NCT 00465010, the achieved sample size of 569 was so much smallerthan the intended 1300.In the published protocolthe primary end point is defined as simply "parent child communication." In the paperthis is reported in many ways (ability to communicate, openness of communication, number oftopics discussed) and also at a range of time points. Was the primary outcome predefined more precisely in an unpublished version of the protocol?