Comparison between prediction equations from Wang et al

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Comparison between prediction equations from Wang et al Comparison between prediction equations from Wang et al. 26 (–––) and Hankinson et al. 21 (········) in males during childhood. Comparison between prediction equations from Wang et al. 26 (–––) and Hankinson et al. 21 (········) in males during childhood. At the stage at which the Cystic Fibrosis Foundation recommends switching between Wang et al. 26 and Hankinson et al. 21 (17 yrs and 15 yrs in males and females, respectively), there is a difference in predicted forced expiratory volume in 1 s (FEV1) of ∼1% in males and 2% in females (data not shown); however, the individual change can be up to 8% predicted. Reproduced with permission from the CF Foundation Registry Committee Task Force on Reference Equations (www.cff.org). S. Stanojevic et al. Eur Respir J 2010;36:12-19 ©2010 by European Respiratory Society