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Table 1 Research study category, scenarios used and brief descriptor

From: Surrogate consent for critical care research: exploratory study on public perception and influences on recruitment

Research study category

Name of research scenario

Short description

Minimally invasive study (low risk)

Blood draw study

Drawing of a small amount of blood for genetic research from an existing intravenous cannula

Non-invasive observation study (low risk)

Mattress study

Testing of a new pressure-relieving mattress

Invasive observational study (high risk)

Brain sensor study

Insertion of additional brain sensors for brain tissue monitoring in brain-injured patients in addition to routinely used brain sensors

Drug trial (high risk)

Drug trial

Double-blind drug randomized controlled trial where the drug in the scenario was explained to possibly cure cancer in cancer patients