1. Sources of increasing differential mortality among the aged by socioeconomic status Author(s): Bosworth, Barry P., authorBurtless, Gary, authorZhang, Kan, author Publication: Chestnut Hill, MA : Center for Retirement Research at Boston College, June 2015 Subject(s): Health Status DisparitiesLife ExpectancyMortalitySocial Determinants of HealthAdultEducational StatusIncomeMiddle AgedRetirementSocioeconomic FactorsHumansUnited States