Physical Activity Trajectories
Participants were excluded from the analysis if they were missing data on more than 30% of the outcome measures or if they had 2 or more missed follow-ups. The primary outcomes were the distinct physical activity trajectories over time. Physical activity trajectories were identified using group-based trajectory modeling, a data-derived statistical approach that does not rely on predefined subgroups.Descriptive statistics were presented as medians with IQRs, number of participants with percentages, or means with SDs, as appropriate. To compare the distribution of clinical characteristics by trajectory group, we used the Mann-Whitney test for nonparametric variables; Pearson χ