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COPD costs during hospitalisation. During hospitalisation, total cost and the out-of-pocket cost were compared among patients with LOS ≤8 days, 9–14 days and>14 days according to quartiles of LOS. The costs increased with longer LOS (ptrend<0.0001 for both total cost and the out-of-pocket cost). COPD, chronic obstructive pulmonary disease; LOS, length of stay.
