Weight gain at follow-up was larger for fast FEV1 decliners and the mean yearly FEV1 losses were three times greater among fast FEV1 decliners than non-fast decliners.

• 随访中体重增加与FEV1快速下降和每年平均FEV1丢失是非快速下降的3倍（自己都有点绕，请高人指点）。