Causal mechanisms for HIA: learning from epidemiology
Health impact assessors who wish to advise policy makers and base their health impact assessment (HIA) on the fullest scientific evidence must understand the potential and pitfalls of epidemiology. This chapter explores how epidemiological reasoning can give insight into the causal mechanisms by which decisions impact on health, goes some way towards estimating the size of those impacts, and thereby provide a basis for prediction.
Keywords: scientific evidence, health effects, pitfalls, epidemiological studies, causal mechanisms
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