Discussion
These results demonstrate that there are two main drivers of the use of a preventive web-based intervention; 1) if the GP had a midwife or nurse involved in the project. 2) Parity of the women.We observed that women attending clinics that did not have a midwife or nurse dedicated to antenatal care were less active users of the intervention webpages. This might relate to the professional identity of midwifes and nurses, seeing the nature of the intervention (promoting a healthy mother-infant relationship) as linked to the core values of their profession [The website requires time to fully engage in the intervention, and this may be easier if participants have no existing childcare responsibilities and are supported by a partner. In line with this hypothesis, we found that nulliparous women living with a partner are more likely to use the intervention.This has been a unique opportunity to assess the utilisation of web-based interventions signposted by GPs and to investigate characteristics associated with taking up the signposting message. The resilientchild.dk intervention may be a useful resource that could routinely be introduced at antenatal assessments, but the results we present may well be relevant to signposting towards any health promotion intervention.Studies regarding web-based interventions have given us valuable information: web-based interventions that target specific mental conditions have shown good results [Signposting has the potential to release some of the pressure on general practice but there is still a need for more studies to improve the evidence foundation underlying signposting and its effectiveness. There are numerous ways that physicians can advise patients towards non-medical resources, and signposting should not be thought of as a single intervention but as an approach that can be used in different settings. This can also create challenges, as the generalisable claims can be limited due to many different outcomes and difficulties defining effectiveness. This does however strengthen the case for more studies that use this approach to expand the evidence foundation [