An approach where the dependent variables are measured before and after an intervention has been delivered. The intervention can either be delivered by the investigator or by others (observational ...

In a recent study published in the European Journal of Clinical Nutrition, researchers collated and analyzed 12 studies comprising more than 17 years’ worth of case-control experiments aimed at ...

Interventional trials aim to find out more about a particular intervention or treatment. A computer puts people taking part into different treatment groups. This is so that the research team can ...

Public health interventions comprise a vast range of approaches, from the relatively simple through to complex national policy interventions. As a consequence, research questions about the ...