An independent committee that develops NICE’s guidance on highly specialised technologies. It is made up of healthcare professionals and NHS managers, researchers, patient and carer organisations, pat [..]

Use of 2 or more different research methods in combination; principally used as a check of validity. The more the different methods produce similar results, the more valid the findings.

The likelihood of an event or outcome occurring (for example, an adverse reaction to the drug being tested) among the group being studied. Studies that compare 2 or more groups of people may report re [..]

An increase in the likelihood of an event or outcome occurring as a result of a treatment or another intervention, sometimes called the risk difference. It is broadly the same as the absolute risk red [..]

A reduction in the likelihood of an event or outcome occurring as a result of a treatment or another intervention, sometimes called the risk difference. For example, if a treatment reduces the absolut [..]

A summary of a study, which may be published alone or as an introduction to a full scientific paper.

Hospital-based healthcare services for inpatients, outpatients and people having day-case treatments.

An unintended effect that is harmful or otherwise unwanted, and suspected to be related to, or caused by, a drug, treatment or intervention. See also Side effect.

Any undesirable event experienced by a person while they are having a drug or any other treatment or intervention, regardless of whether or not the event is suspected to be related to or caused by the [..]

An unintended reaction that is harmful or otherwise unwanted which is experienced by a person after having a drug or any other treatment or intervention, and which is suspected to be related to, or ca [..]