Outcome measures in helicopter emergency medical services research: a narrative review

Description

When a helicopter is sent to a patient, somebody eventually has to say whether it helped. That turns out to be harder than it sounds, because studies of air ambulance services do not agree on what helping means. One counts how many patients were alive at thirty days. Another counts the minutes from the emergency call to the hospital door. A third counts whether the crew completed a procedure at the scene, and many never ask the patient anything at all. So two services can look better or worse than one another purely because they chose to measure different things, and a reader cannot tell which. Before air ambulance care can be compared honestly, somebody has to write down what the field is actually measuring, and nobody has. This project builds that inventory from the published studies, recording every outcome, how it was defined and when it was measured. Nothing gets pooled: the question is what gets counted, and what quietly gets left out. It suits someone who likes finding order in a mess.

Student responsibilities

Read up on how air ambulance services are evaluated and why their studies are hard to compare. Help run the search, screen studies, record every outcome measure with its definition and time point, and write a section of the paper.