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Correction for PISTELLI et al., Am. J. Respir. Crit. Care Med. 161 (3) 899-905.
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Am. J. Respir. Crit. Care Med., Volume 164, Number 9, November 2001, 1740-1740


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From the Authors:

Upon notification from a reader of our article (1), the authors have found three incorrect coefficients in Table 3, on page 901 entitled "Coefficients associated to the independent variables estimated for different regressions of eight lung function indices separately for the two sexes." The incorrect coefficients are those in the "Height-squared" row for "VC", "FEV1", and "FVC" in males.

The published coefficients cause erroneous predicted values, as shown in the following example for a male 40 years of age whose height and weight are 180 cm and 75 kg, respectively:

                              
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We had not previously discovered the errors because we kept applying the reference equations by using the values directly derived from the output of the datafile, instead of those published.

We apologize for the mistake, which was not due to the printing procedures of the American Journal of Respiratory and Critical Care Medicine, but to an error in the transcription of the coefficients from the output of the datafile to the original submitted manuscript.

We include below the relevant part of Table 3, after correction. We think that it may be more useful for the readers rather than publishing only the correct coefficients by themselves.

                              
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TABLE 3

 COEFFICIENTS ASSOCIATED TO THE INDEPENDENT VARIABLES ESTIMATED FOR DIFFERENT REGRESSIONS OF EIGHT LUNG FUNCTION INDICES SEPARATELY FOR THE TWO SEXES

By Francesco Pistelli

Institute of Clinical Physiology, Pisa, Italy

1. Pistelli F, Bottai M, Viegi G, DiPede F, Carrozzi L, Baldacci S, Pedreschi M, Giuntini C. Smooth reference equations for slow vital capacity and flow- volume curve indexes. Am J Respir Crit Care Med 2000; 161: 899-905 [Abstract/Free Full Text].




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