GLI-2012 All-Age Multi-Ethnic Reference Values for …

GLI-2012 Reference Values for spirometry 1. GLI-2012 . All-Age Multi-Ethnic Reference Values for Spirometry Advantages Consequences Philip H. Quanjer Sanja Stanojevic Janet Stocks Tim J. Cole GLI-2012 Reference Values for spirometry 2. Interpretation of spirometric data Philip H. Quanjer Sanja Stanojevic Janet Stocks Tim J. Cole Introduction I. n the four years that it took the Global Lung Function Initiative (GLI) to finish its mission, with the support of six large international respiratory societies, a collabo . rative netwerk was established that spanned the world. The network included clinicians, re . searchers, technicians, IT engineers and manu . facturers. The objective was to derive Reference equations for spirometry that covered as many ethnic groups as possible, and an age range from pre-school children to old age.

1 The separation of children/adolescents and adults is arti­ ficial and leads to disjointed predicted values at the tran­ sition from adolescence to adulthood. 2 The models fit the measured values poorly, particularly in children. 3 Differences in predicted values by various authors are very large. Use of percent of predicted

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  Multi, Reference, Value, Adults, Ethnic, Age multi ethnic reference values for

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