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Comment
. 2024 Feb 1;209(3):343-345.
doi: 10.1164/rccm.202311-2016LE.

Reply to Neder, to Ogata et al., and to Graham

Affiliations
Comment

Reply to Neder, to Ogata et al., and to Graham

Surya P Bhatt et al. Am J Respir Crit Care Med. .
No abstract available

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Figures

Figure 1.
Figure 1.
Comparison of residual volume (RV) to TLC ratio in Global Initiative for Chronic Obstructive Lung Disease (GOLD)- and STaging of airflow Obstruction using Ratio (STAR)-concordant and -discordant classes. Discordant groups within each stage reassigned labels from the four GOLD stages (1–4) to the four STAR stages (relabeled A, B, C, and D, respectively, for clarity). Data from the University of Alabama at Birmingham pulmonary function lab database. N = 16,199. Mean age, 62.4 years (range, 40–95 yr), 54% female, 71.4% White, 26.1% Black, 0.1% Asian, and 0.2% other/mixed race. Stage 0 is the group with no airflow obstruction (n = 11,207, 69.2%). Of those with airflow obstruction (n = 4,992, 30.8%), the number (%) within each discordant group was 933 (18.7%), 183 (3.7%), 12 (0.2%), 0 (0%); 1,513 (30.3%), 559 (11.2%), 165 (3.3%), 22 (0.4%); 444 (8.9%), 371 (7.4%), 283 (5.7%), 166 (3.3%); and 38 (0.8%), 42 (0.8%), 88 (1.8%), 173 (3.5%) for stages 1A, 1B, 1C, 1D; 2A, 2B, 2C, 2D; 3A, 3B, 3C, 3D; and 4A, 4B, 4C, 4D, respectively.

Comment on

References

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