Similarly , there was no clear evidence of effect for cardiovascular risk factors , although again the number of studies reporting these was small .
There was some evidence for beneficial effects on HRQOL , dietary outcomes , and physical activity , although firm conclusions can not yet be made .
The effects on healthcare utilisation and cost-effectiveness are also inconclusive , and trials are yet to measure the impact of  Internet interventions on compliance with medication .
BACKGROUND The Internet could provide a means of delivering secondary prevention programmes to people with coronary heart disease ( CHD ) .
OBJECTIVES To determine the effectiveness of Internet-based interventions targeting lifestyle changes and medicines management for the secondary prevention of CHD .
Web-based tailoring and its effect on self-efficacy: results from the MI-HEART randomized controlled trial
This paper reports the effects of a tailored Web-based delivery system on self-efficacy as it relates to a patients ' response to acute myocardial information ( AMI ) symptoms . The data reported are from MI-HEART , a r and omized trial examining ways in which a clinical information system can favorably influence the appropriateness and rapidity of decision-making in patients suffering from symptoms of acute myocardial infa rct ion . Participants were r and omized into one of three groups : tailored Web-based , non-tailored Web-based and non-tailored paper based .  A theoretically based behavioral-cognitive model was used to identify key variables upon which to tailor education material . A key variable in the model is self-efficacy , operationalized with a three-dimensional scaling . Results show trends in improved self-efficacy scores for all groups at 1-month follow up , with sustained significant increases in baseline to 3-month scores only in the tailored Web-based group . One possible explanation could be related to " hit-count " , which was significantly higher in the tailored group . This study is a first step in quantifying the contribution of Web-based tailoring over non-tailoring in changing key determinants of patient delay to AMI symptoms
Similarly , there was no clear evidence of effect for cardiovascular risk factors , although again the number of studies reporting these was small .
There was some evidence for beneficial effects on HRQOL , dietary outcomes , and physical activity , although firm conclusions can not yet be made .
The effects on healthcare utilisation and cost-effectiveness are also inconclusive , and trials are yet to measure the impact of  Internet interventions on compliance with medication .
BACKGROUND The Internet could provide a means of delivering secondary prevention programmes to people with coronary heart disease ( CHD ) .
OBJECTIVES To determine the effectiveness of Internet-based interventions targeting lifestyle changes and medicines management for the secondary prevention of CHD .