Page 25 - 15Diarrhoeaandvomiting

Diarrhoea and vomiting caused by gastroenteritis in children under 5 years

Trust A trust is an NHS organisation responsible for providing a group of healthcare
services. An acute trust provides hospital services. A mental health trust provides
most mental health services. A primary care trust buys hospital care on behalf of
the local population, as well as being responsible for the provision of community
health services.
Ulcerative colitis A type of inflammatory bowel disease affecting the large intestine (colon).
Validity An assessment of how well a tool or instrument measures what it is intended to
measure. See also external validity and internal validity.
Variable A factor that differs among and between groups of people. It includes participant
characteristics (such as age or sex) or measurements (such as blood pressure or
heart rate) or treatments (such as drugs).
Weighted mean difference See mean difference or weighted mean difference (WMD).
(WMD)

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