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IL-8 level was negatively correlated with (a) FEV1 (r = −0.807 (b) FEV1%pred (r = −0.701), and (c) FEV1%FVC (r = −0.747).
IL, interleukin; FEV1, forced expiratory volume in 1 s; FEV1%pred: FEV1 % predicted; FEV1%FVC: FEV1/forced vital capacity.
