The Economist/Henry J. Kaiser Family Foundation. Kaiser Family Foundation/The Economist Poll: Survey on Loneliness and Social Isolation in the United States, the United Kingdom, and Japan (US), 2018 [Dataset]. Roper #31115454, Version 2. Social Science Research Solutions (SSRS) [producer]. Cornell University, Ithaca, NY: Roper Center for Public Opinion Research [distributor]. doi:10.25940/ROPER-31115454