Perceived extrinsic mortality risk and health behaviour: Testing a behavioural ecological model

Gillian V Pepper & Daniel Nettle
Purpose: Socioeconomic gradients in health behaviour are pervasive and well documented. Yet, outside the evolutionary literature, there is no consensus on their causes. Our previously presented theoretical behavioural ecological model predicted that people of low socioeconomic position (SEP) should perceive greater personal extrinsic mortality risk than those of higher SEP, leading them to disinvest in their future health. We collected data to test this prediction. Methods: We surveyed North American adults for measures of SEP,...