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Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
  • Abstract

    A brief summary of the study and its results. It should tell you what the study tried to show, how the researchers went about it, and what they found.
  • Adverse event

    An unfavourable outcome that occurs during or after the use of a drug or other intervention, but is not necessarily caused by it.
  • Applied Research Collaborations

    NIHR Applied Research Collaborations (ARCs), the successor to NIHR Collaborations for Leadership in Applied Health Research and Care (CLAHRCs), support high quality, generalisable, applied health and care research that responds to, and meets, the needs of local populations and local health and care systems. The collaborations also support, facilitate and increase the rate at which research findings are implemented into practice.
  • ARCs

    NIHR Applied Research Collaborations (ARCs), the successor to NIHR Collaborations for Leadership in Applied Health Research and Care (CLAHRCs), support high quality, generalisable, applied health and care research that responds to, and meets, the needs of local populations and local health and care systems. The collaborations also support, facilitate and increase the rate at which research findings are implemented into practice.
  • Arm

    Refers to a group of participants allocated to a particular treatment. In a randomised controlled trial, allocation to different arms is determined by the randomisation procedure. Many controlled trials have two arms, a group of participants assigned to an experimental intervention (sometimes called the treatment arm) and a group of participants assigned to a control (the control arm). Trials may have more than two arms.
  • Attrition

    The loss of participants during the course of a study. Also called 'loss to follow up'.