Vital capacity and one-second forced expiratory volume in Australian male factory workers

The vital capacity (VC) and one-second forced expiratory volume (FEV1) of 482 men were measured and corrected for temperature but not pressure. The relationship between both VC and FEV1 and height and age was examined and found to be linear. In using these relationships for significance testing the 95% confidence limit is 1.65 standard deviations below the predicted value. Our results are expressed in graphical form to facilitate interpolation and will thus be of use to the clinical practitioner in Australia. Neither weight nor smoking habit was found to influence the relationship of VC or FEV1 with age or height.