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Comment
. 2024 Jan 1;209(1):119-120.
doi: 10.1164/rccm.202309-1664LE.

Number of Follow-Up Years Needed to Identify a Rapid Decline in FEV1

Anders Lundquist  1 , Anne Lindberg  2 , Jonas Eriksson-Ström  2 , Anders Blomberg  2 , Helena Backman  3
Affiliations
Comment

Number of Follow-Up Years Needed to Identify a Rapid Decline in FEV1

Anders Lundquist et al. Am J Respir Crit Care Med. .
No abstract available

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Figures

Figure 1.
Figure 1.
Sensitivity, specificity, positive predictive (Pos Pred) value, and negative predictive (Neg Pred) value for the number of years of follow-up required to identify belonging to the “FEV1 high with a rapid decline” trajectory. Points represent the values obtained in the simulation, and the line is a smoothed average. Sensitivity is the proportion detected among subjects truly belonging to the trajectory. Specificity is the proportion ruled out among subjects truly not belonging to the trajectory. Pos Pred value is the proportion correctly identified among subjects classified as belonging to the trajectory. Neg Pred value is the proportion correctly identified among subjects classified as not belonging to the trajectory.
See this image and copyright information in PMC

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References

    1. Backman H, Blomberg A, Lundquist A, Strandkvist V, Sawalha S, Nilsson U, et al. Lung function trajectories and associated mortality among adults with and without airway obstruction. Am J Respir Crit Care Med . 2023;208:1063–1074. - PMC - PubMed
    1. Bush A. Going down, dooby doo down, down: identifying rapid spirometry decline. Am J Respir Crit Care Med . 2023;208:1014–1015. - PMC - PubMed