title: The use of Z-scores in paediatric cardiology.
abstract: Z-scores are a means of expressing the deviation of a given measurement from the size or age specific population mean. By taking account of growth or age, Z-scores are an excellent means of charting serial measurements in paediatric cardiological practice. They can be applied to echocardiographic measurements, blood pressure and patient growth, and thus may assist in clinical decision-making.
authors.affiliation: Department of Congenital Heart Disease, Evelina Children's Hospital, Guy's and St Thomas' NHS Trust, London, UK.
authors.forename: Henry
authors.initials: H
authors.lastname: Chubb
authors.forename: John M
authors.initials: JM
authors.lastname: Simpson
keywords: Blood pressure; Z-score; cardio Z; echocardiography; paediatric cardiology