Journal
JOURNAL OF GENERAL INTERNAL MEDICINE
Volume 37, Issue 8, Pages 1935-1942Publisher
SPRINGER
DOI: 10.1007/s11606-021-07067-y
Keywords
social determinants of health; hospitalization
Funding
- VA Health Services Research and Development Career Development Award [IK2HX003139-01A2]
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Analyzing data from the National Health Interview Surveys, it was found that food insecurity, social isolation, and low educational attainment in three SDOH domains increase an individual's risk of hospitalization. Additionally, the risk of hospitalization rises as the burden of SDOH increases.
Importance While the association between Social Determinants of Health (SDOH) and health outcomes is well known, few studies have explored the impact of SDOH on hospitalization. Objective Examine the independent association and cumulative effect of six SDOH domains on hospitalization. Design Using cross-sectional data from the 2016-2018 National Health Interview Surveys (NHIS), we used multivariable logistical regression models controlling for sociodemographics and comorbid conditions to assess the association of each SDOH and SDOH burden (i.e., cumulative number of SDOH) with hospitalization. Setting National survey of community-dwelling individuals in the US Participants Adults >= 18 years who responded to the NHIS survey Exposure Six SDOH domains (economic instability, lack of community, educational deficits, food insecurity, social isolation, and inadequate access to medical care) Measures Hospitalization within 1 year Results Among all 55,186 respondents, most were <= 50 years old (54.2%), female (51.7%, 95% CI 51.1-52.3), non-Hispanic (83.9%, 95% CI 82.4-84.5), identified as White (77.9%, 95% CI 76.8-79.1), and had health insurance (90%, 95% CI 88.9-91.9). Hospitalized individuals (n=5506; 8.7%) were more likely to be >= 50 years old (61.2%), female (60.7%, 95% CI 58.9-62.4), non-Hispanic (87%, 95% CI 86.2-88.4), and identify as White (78.5%, 95% CI 76.7-80.3), compared to those who were not hospitalized. Hospitalized individuals described poorer overall health, reporting higher incidence of having >= 5 comorbid conditions (38.9%, 95% CI 37.1-40.1) compared to those who did not report a hospitalization (15.9%, 95% CI 15.4-16.5). Hospitalized respondents reported higher rates of economic instability (33%), lack of community (14%), educational deficits (67%), food insecurity (14%), social isolation (34%), and less access to health care (6%) compared to non-hospitalized individuals. In adjusted analysis, food insecurity (OR: 1.36, 95% CI 1.22-1.52), social isolation (OR: 1.17, 95% CI 1.08-1.26), and lower educational attainment (OR: 1.12, 95% CI 1.02-1.25) were associated with hospitalization, while a higher SDOH burden was associated with increased odds of hospitalization (3-4 SDOH [OR: 1.25, 95% CI 1.06-1.49] and >= 5 SDOH [OR: 1.72, 95% CI 1.40-2.06]) compared to those who reported no SDOH. Conclusions Among community-dwelling US adults, three SDOH domains: food insecurity, social isolation, and low educational attainment increase an individual's risk of hospitalization. Additionally, risk of hospitalization increases as SDOH burden increases.
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