However, 20% of rapid FEV 1 /FVC decliners had an annual FEV 1 decline rate slower than the median value of −10 mL/yr, and notably, these patients commonly showed an increasing trend in annual FVC ( Supplementary Fig. 4 ).
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However, 20% of rapid FEV 1 /FVC decliners had an annual FEV 1 decline rate slower than the median value of −10 mL/yr, and notably, these patients commonly showed an increasing trend in annual FVC ( Supplementary Fig. 4 ).