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Comparing residence-based to actual path-based methods for defining adolescents' environmental exposures using

Alison J Culyba1, Wensheng Guo2, Charles C Branas2

  • 1Craig-Dalsimer Division of Adolescent Medicine, The Children's Hospital of Philadelphia, 3401 Civic Center Boulevard, Philadelphia, PA 19104, United States; Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, 423 Guardian Drive, Philadelphia, PA 19104, United States.

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Summary

This study found that using home addresses to measure adolescent exposure to violence risks is inaccurate. Actual travel paths provide a more precise method for assessing environmental risks and understanding violence.

Keywords:
Adolescent healthEnvironmental exposureEpidemiological methodsSpatial analysisViolence

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Area of Science:

  • Environmental epidemiology
  • Public health
  • Urban planning

Background:

  • Assessing environmental exposures is crucial for understanding health outcomes, particularly violence risk among adolescents.
  • Traditional methods often rely on static residential data, which may not accurately reflect an individual's daily environmental interactions.
  • Accurate exposure assessment is vital for developing effective public health interventions.

Purpose of the Study:

  • To compare the accuracy of residence-based versus actual path-based methods for measuring environmental exposures related to adolescent violence.
  • To explore novel spatial methods for defining environmental exposures using daily travel paths.
  • To investigate the association between accurately measured environmental exposures and the risk of assault injury in adolescents.

Main Methods:

  • Utilized data from a population-based case-control study of daily activities and assault injury.
  • Compared environmental exposures derived from participant home addresses with those derived from daily travel paths.
  • Developed a method to define spatial counterfactuals by comparing actual trip path exposures to shortest potential trip path exposures.

Main Results:

  • Residence-based environmental exposure measures led to significant misclassification of adolescent exposure to violence risks.
  • Actual path-based measures, considering daily travel routes, provided a more accurate assessment compared to home address data.
  • The proposed spatial method using origin-destination segments demonstrated potential for improved exposure quantification.

Conclusions:

  • Home address is an insufficient proxy for measuring adolescent exposure to environmental risks associated with violence.
  • Actual travel path-based approaches offer a more accurate method for assessing environmental exposures and their link to health outcomes.
  • The explored spatial methods can enhance future research on environmental determinants of health and violence.