Neighbourhood socioeconomic status and cross-sectional associations with obesity and urinary biomarkers of diet among New York City adults: the heart follow-up study

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Abstract

OBJECTIVE: To determine whether neighbourhood socioeconomic status (SES) is associated with body mass index (BMI), waist circumference (WC) and biomarkers of diet (urinary sodium and potassium excretion).

DESIGN: A cross-sectional study.

SETTING: The data reported were from the 2010 Heart Follow-up Study, a population-based representative survey of 1645 adults.

PARTICIPANTS: Community-dwelling diverse residents of New York City nested within 128 neighbourhoods (zip codes).

PRIMARY AND SECONDARY OUTCOME MEASURES: BMI (kg/m2) and WC (inches) were measured during in-home visits, and 24-hour urine sample was collected to measure biomarkers of diet: sodium (mg/day) and potassium (mg/day), with high sodium and low potassium indicative of worse diet quality.

RESULTS: After adjusting for individual-level characteristics using multilevel linear regressions, low versus high neighbourhood SES tertile was associated with 1.83 kg/m2 higher BMI (95% CI 0.41 to 3.98) and 251 mg/day lower potassium excretion (95% CI -409 to 93) among women only, with no associations among men (P values for neighbourhood SES by sex interactions <0.05).

CONCLUSION: Our results suggest that women may be particularly vulnerable to the effects of a socioeconomically disadvantaged neighbourhood. Future neighbourhood research should explore sex differences, as these can inform tailored interventions.

TRIAL REGISTRATION NUMBER: NCT01889589; Results.

Original languageEnglish (US)
Pages (from-to)e018566
JournalBMJ Open
Volume7
Issue number12
DOIs
StatePublished - Dec 29 2017

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Keywords

  • epidemiology
  • public health

ASJC Scopus subject areas

  • Medicine(all)

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