The Hispanic Community Health Study/Study of Latinos Community and Surrounding Areas Study: sample, design, and procedures

Ann Epidemiol. 2019 Feb;30:57-65. doi: 10.1016/j.annepidem.2018.11.002. Epub 2018 Nov 12.


Purpose: We describe the sample, design, and procedures for the Community and Surrounding Areas Study (CASAS), an ancillary to the Hispanic Community Health Study/Study of Latinos (HCHS/SOL). The aim of SOL CASAS was to test an ecological model of macro- and micro-neighborhood environment factors, intermediate behavioral (physical activity) and psychosocial (e.g., depression and stress) mechanisms, and changes in cardiometabolic health in Hispanics/Latinos.

Methods: Between 2015 and 2017, approximately 6 years after the HCHS/SOL baseline (2008-2011), 1776 San Diego HCHS/SOL participants enrolled in SOL CASAS and completed a repeat physical activity assessment. Participants' residential addresses were geoprocessed, and macroenvironmental features of the home were derived from publicly available data concurrent with the HCHS/SOL baseline and Visit 2 (2014-2017). Microscale environmental attributes were coded for 943 unique routes for 1684 participants, with a validated observational tool, concurrent with Visit 2, for SOL CASAS participants only.

Results: Of 2520 HCHS/SOL participants approached, 70.5% enrolled (mean age 55.3 years; 94% Mexican; 67.5% female). Accelerometer adherence (three or more days with at least 10 hours wear time) was outstanding (94%).

Conclusions: With its more comprehensive ecological model and well-characterized Hispanic/Latino population, SOL CASAS will advance the science concerning the contribution of neighborhood factors to cardiometabolic health.

Keywords: Cardiovascular; Depression; Environment; Hispanic; Latino; Neighborhood; Physical activity; Risk factors.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Adult
  • Aged
  • Cardiovascular Diseases / ethnology*
  • Cohort Studies
  • Community-Based Participatory Research
  • Depression / ethnology*
  • Depression / psychology
  • Environment*
  • Exercise
  • Female
  • Hispanic Americans / statistics & numerical data*
  • Humans
  • Male
  • Middle Aged
  • Prospective Studies
  • Public Health
  • Research Design
  • Residence Characteristics*
  • Risk Factors
  • Social Class
  • Social Environment*
  • United States / ethnology