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Four lung function trajectories learned from analyzing 1,060 men followed up for > 20 years in the Normative Aging Study. Trajectory 1 was characterized by both a lower maximal FEV1 attained as well as a more rapid rate of lung function loss in mid-life. The other trajectories differed primarily in maximal FEV1 attained but not in rate of decline. See Figure 1 legend for expansion of abbreviation.
