... Pulmonaryfunction tests, blood gas analyses, and health status weremeasured on the same day at baseline, and again after 6months when the subjects were stable. If an exacerbationoccurred on ... literature vary[2,19,28-30], indicating that there is no clear consensus on the definition of an exacerbation. The application of a different definition of exacerbation may explain the lowerexacerbation ... J, Monso E, Marrades RM, Escarrabill J, Felez MA,Sunyer J, Anto JM: Risk factors for hospitalization for a chronicobstructive pulmonary disease exacerbation. EFRAM study.American journal of...