To the Editor Dr Chetty and colleagues1 analyzed the important relationships between income, health behaviors, and life expectancy. Health behaviors are constrained by individuals’ socioeconomic position through resources and environmental context that affect individuals’ capability for change.2 The findings of the study point toward the need to address socioeconomic disparities in life expectancy in the United States, in part by addressing disparities in health behaviors.
Fiscella K. Relationships Between Income, Health Behaviors, and Life Expectancy. JAMA. 2016;316(8):880. doi:10.1001/jama.2016.9376