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Daily life activities (minutes/week) and mobility score in different FEV1 % classes.
Notes: Dark bars represent active patients; light bars represent inactive patients; Mobility score 1 = rests inside most of the day, and cannot get out without help; 2 = stays up inside most of the day; 3 = moves in and out, doing light household chores when needed.
Abbreviation: FEV1, forced expiratory volume in 1 second.
