Quantifying the Urban Environment: A Newly Constructed Scale of Urbanicity Outperforms the Traditional Urban-Rural Dichotomy

Darren L. Dahly, University of North Carolina at Chapel Hill
Linda Adair, University of North Carolina at Chapel Hill

The rapid urbanization of the developing world has important consequences for human health. Although several authorities have called for better research on the relationships between urbanicity and health, most researchers still use a poor measurement of urbanicity, the urban-rural dichotomy. Our goal was to construct a scale of urbanicity using community level data from the Cebu Longitudinal Health and Nutrition Survey. We used established scale development methods to validate the new measure, and tested its performance against the dichotomy. The new scale illustrated misclassification by the urban-rural dichotomy, and was able to detect differences in urbanicity, both between communities and across time, that were not apparent before. Furthermore, using a continuous measure of urbanicity allows for much more meaningful illustrations of the relationships between urbanicity and health. The new scale is a better measure of urbanicity than the traditionally used urban-rural dichotomy.

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Presented in Poster Session 4: Migration, Income, Employment, Neighborhoods and Residential Context