Abstract 14109: Moving to a Neighborhood of Higher Socioeconomic Deprivation Predicts Weight Gain in a Multi-Ethnic Population: Longitudinal Data From the Dallas Heart Study
Background: Longitudinal data are lacking that examine the relationship between moving to a neighborhood of higher socioeconomic deprivation and weight as a cardiovascular risk factor.
Methods: We examined the impact of change in neighborhood socioeconomic deprivation with moving on weight change over 7 years in the Dallas Heart Study (DHS), a multi-ethnic sample of Dallas County residents aged 18-65. Body weight (kg) was measured in 2000-02 and at 7-year follow up (N=1835). Geocoded baseline and follow-up home addresses were linked to census block groups in Dallas County. A block group-level neighborhood deprivation index (NDI) was created (higher scores = more socioeconomic deprivation). Repeated measures linear mixed modeling with random effects was used to determine weight change relative to NDI change. Heckman’s correction factor (HCF) was used to adjust for the non-random chance of moving to an area of higher NDI based on age, sex, race, education, income, employment, marital status, and home ownership.
Results: 49% of the DHS population moved within Dallas County during the 7-year study period. Blacks were more likely to move than whites or Hispanics (p<0.01), but there were no differences in baseline body mass index or waist circumference in movers vs. non-movers (p>0.05 for both). Adjusting for HCF, sex, race, and time-updated covariates (age, smoking, education, income, physical activity, length of residence), those who moved to areas of higher NDI gained more weight compared to those who remained at the same NDI or moved to lower NDI (0.69±0.29 kg per 1-unit NDI increase, p=0.02). Among those who moved, the impact of change in NDI on weight gain increased with time in the new neighborhood: mean weight gain per 1-unit NDI increase was 0.91±0.43 kg (p=0.03) for those living in the new neighborhood >median of 4 years, but not significant for those living in the new neighborhood ≤ median 4 years (0.55±0.39 kg, p=0.2).
Conclusions: Moving to a neighborhood of higher socioeconomic deprivation was associated with weight gain among DHS participants. Until economic and policy factors reduce neighborhood socioeconomic deprivation, more work is needed to identify individual or community interventions that reduce its adverse effects on cardiovascular health.
- © 2013 by American Heart Association, Inc.