Annotations were collected using the open-source BRAT tool. You can use the links on this page to browse the collected annotations. For the complete set of annotations and an API for using them, visit the Downloads page.
The annotations were collected in two passes:
- Phase One: Workers highlighted all spans relevant to the target PIO element.
- Phase Two: Workers added detailed labels to snippets of the phase one spans.
P: Patient, Population or Problem
- What are the characteristics of the patient or population (demographics, risk factors, pre-existing conditions, etc)?
- What is the condition or disease of interest?
I: Interventions
- What is the intervention under consideration for this patient or population?
- What is the alternative to the intervention (e.g. placebo, different drug, surgery)?
O: Outcomes
- What are the relevant outcomes (e.g. quality of life, change in clinical status, morbidity, adverse effects, complications)?