Abstract

Background/Aims There are a number of recent large-scale community-level initiatives targeting obesity prevention that focus on policy and environmental change strategies. To help evaluate the impact of these initiatives we have created a measure of estimated strategy-level impact that we refer to as ‘population dose’ that provides an overall estimate of the impact of a strategy on food and physical activity behaviors. We provide a definition and examples of measuring population dose and show how the concept was used in an evaluation of the Kaiser Permanente’s Healthy Eating, Active Living Community Health Initiative in Northern California (HEAL-CHI).

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