abstract: 'Social connectedness is essential for health and longevity, while isolation exacts a heavy toll on individuals and society. We present U.S. social connectedness magnitudes and trends as target phenomena to inform calls for policy-based approaches to promote social health. Using the 2003-2020 American Time Use Survey, this study finds that, nationally, social isolation increased, social engagement with family, friends, and `others'' (roommates, neighbors, acquaintances, coworkers, clients, etc.) decreased, and companionship (shared leisure and recreation) decreased. Joinpoint analysis showed that the pandemic exacerbated upward trends in social isolation and downward trends in non-household family, friends, and `others'' social engagement. However, household family social engagement and companionship showed signs of progressive decline years prior to the pandemic, at a pace not eclipsed by the pandemic. Work hours emerged as a structural constraint to social engagement. Sub-groups allocated social engagement differently across different relationship roles. Social engagement with friends, others, and in companionship plummeted for young Americans. Black Americans experienced more social isolation and less social engagement, overall, relative to other races. Hispanics experienced much less social isolation than non-Hispanics. Older adults spent more time in social isolation, but also relatively more time in companionship. Women spent more time with family while men spent more time with friends and in compan-ionship. And, men''s social connectedness decline was steeper than for women. Finally, low-income Americans are more socially engaged with `others'' than those with higher income. We discuss potential avenues of future research and policy initiatives that emerge from our findings.' affiliation: 'Kannan, VD (Corresponding Author), Univ Rochester, Dept Psychiat, 300 Crittenden Blvd, Rochester, NY 14642 USA. Kannan, Viji Diane, Univ Rochester, Dept Psychiat, 300 Crittenden Blvd, Rochester, NY 14642 USA. Veazie, Peter J., Univ Rochester, Dept Publ Hlth Sci, 265 Crittenden Blvd, Rochester, NY 14642 USA.' article-number: '101331' author: Kannan, Viji Diane and Veazie, Peter J. author-email: 'viji\_kannan@urmc.rochester.edu peter\_veazie@urmc.rochester.edu' author_list: - family: Kannan given: Viji Diane - family: Veazie given: Peter J. da: '2023-09-28' doi: 10.1016/j.ssmph.2022.101331 files: [] issn: 2352-8273 journal: SSM-POPULATION HEALTH keywords: Friends; Family; Health disparities; American Time Use Survey keywords-plus: 'CORONARY-HEART-DISEASE; BASE-LINE-THEORY; RISK-FACTORS; FRIEND RELATIONSHIPS; OLDER-ADULTS; SELF-CARE; LONELINESS; HEALTH; MORTALITY; SUPPORT' language: English month: MAR number-of-cited-references: '75' orcid-numbers: Kannan, Viji Diane/0000-0001-8346-369X papis_id: 135cbc16571b7e2e592c61a076cdc0bf ref: Kannan2023ustrends times-cited: '4' title: US trends in social isolation, social engagement, and companionship ? nationally and by age, sex, race/ethnicity, family income, and work hours, 2003-2020 type: Article unique-id: WOS:001060774600001 usage-count-last-180-days: '0' usage-count-since-2013: '1' volume: '21' web-of-science-categories: Public, Environmental \& Occupational Health year: '2023'