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Previous Volume 352:1276 March 24, 2005 Number 12 Next

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The Effect of Air Pollution on Lung Development from 10 to 18 Years of Age . On page 1059, under the heading Statistical Analysis, in the list of model adjustments, lines 18 through 20 of the left-hand column should have read "the square of log values for height," rather than "body-mass index (the weight in kilograms divided by the square of the height in meters); the square of the body-mass index," as printed. Also, in the right-hand column, lines 3 and 4 should have read "ordinal variables for the field technician and the spirometer," rather than "indicator variables," as printed. These errors had no bearing on the analysis of persons with clinically low lung function. Adjustment for body-mass index and indicator variables as intended changes the results slightly but does not affect the reported associations between growth and pollution during an eight-year period. The corrected values for Table 2 (page 1062), Table 3 (1063), and Table 4 (1064) and for Figure 2 (page 1062) are available at the Journal's Web site at www.nejm.org.

View this table: [in this window] [in a new window]   Table 2. Mean Levels of Growth in Pulmonary Function during the Eight-Year Study Period, from 1993 to 2001.

 

View this table: [in this window] [in a new window]   Table 3. Difference in Average Growth in Lung Function over the Eight-Year Study Period from the Least to the Most Polluted Community.

 

View this table: [in this window] [in a new window]   Table 4. Sensitivity Analysis of the Effects of Acid Vapor and Elemental Carbon on Growth in FEV1 over the Eight-Year Study Period.

 

View larger version (7K): [in this window] [in a new window]   Figure 2. Community-Specific Average Growth in FEV1 among Girls and Boys During the Eight-Year Period from 1993 to 2001 Plotted against Average Nitrogen Dioxide (NO2) Levels from 1994 through 2000.

 

PDF PDA Full Text Add to Personal Archive Add to Citation Manager Notify a Friend E-mail When Cited E-mail When Letters Appear Related Article by Gauderman, W. J.

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