The Association of Residential Mobility With Weight-Related Health Behaviors.

OBJECTIVE

To estimate associations of residential mobility with body mass index (BMI), physical activity, and diet and whether associations differ across demographics.

DESIGN

Longitudinal cohort with 4 waves of survey follow-up over 15 years.

PARTICIPANTS AND SETTING

A total of 2,110 adolescents and young adults originally from the Twin Cities of Minnesota responded to at least 2 waves of follow-up, beginning at ages 15 to 23 years.

MAIN OUTCOME MEASURE(S): Self-reported BMI, physical activity, fast food consumption, breakfast frequency, sugary drink consumption, fruit and vegetable consumption, and screen time.

ANALYSIS

Each outcome was modeled as a continuous variable using hierarchical linear regression. Residential mobility-change in residential address-was the main effect of interest. Models adjusted for demographics, marriage during follow-up, and previous level of the outcome. Inverse propensity weights accounted for loss to follow up.

RESULTS

No weight-related outcomes differed between movers and nonmovers in the whole sample. When examining effect modification by age, as participants aged, moving was increasingly associated with improvements in weight-related outcomes, particularly BMI.

CONCLUSIONS AND IMPLICATIONS

Results suggest that moving may be associated with poorer weight-related outcomes during a brief window from late teens and early-20s and less associated with weight-related outcomes in the mid-20s and 30s.