Re-Engagement in Physical Activity Slows the Decline in Older Adults' Well-Being - A Longitudinal Study.

Given that the HAS generally exhibited a decreasing trend across the 3 waves of measurements and that our focus was on the population average (across the 8 groups of physical activity engagement patterns), rather than individual differences in HAS changes, we used a generalized estimating equations (GEE) model instead of a mixed-effects model to examine the differences among physical activity engagement patterns associated with the decreasing trend (slope) of the HAS.

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