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Table 2 Summary of factors influencing patient placement within Figure 3

From: Augmentation therapy for alpha-1 antitrypsin deficiency: towards a personalised approach

Parameter Quartile 1 Quartile 2 Quartile 3 Quartile 4
Age 60+ 50-60 40-50 30-40
FEV1/Kco (% pred) >80 60-80 40-60 30-40
FEV1/Kco decline (% pred/yr) <0.1 0.1-0.5 0.5-1.0 >1.0