New regression equations for predicting peak expiratory flow in adults.

  title={New regression equations for predicting peak expiratory flow in adults.},
  author={Anthony J. Nunn and I Gregg},
  volume={298 6680},
An earlier study of peak expiratory flow (PEF) in normal adults contained too few men aged over 55 and women aged over 65 for the regression equations to be used for prediction in older people. A subsequent study was therefore carried out on an additional 23 men and 29 women aged 55 or over who were lifelong non-smokers and satisfied the same strict criteria of normality that had been used in the original study. The data from both studies were combined and a new model used to calculate… CONTINUE READING

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