Influence of secular trends and sample size on reference equations for lung function tests
The aim of our study was to determine the contribution of secular trends and sample size to lung function reference equations, and establish the number of local subjects required to validate published reference values. 30 spirometry datasets collected between 1978 and 2009 provided data on healthy,...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
European Respiratory Society
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/54264 |