Associations between income inequality at municipality level and health depend on context - a multilevel analysis on myocardial infarction in Sweden.

This study investigates whether a) income inequality in Swedish municipalities increases the risk of myocardial infarction (AMI); b) the association between income inequality and AMI is mediated by level of residential segregation, measured as homogeneity in parishes (as a proxy for neighbourhoods) within municipalities; and c) there is an interaction between parish homogeneity and individual level social position.