Social disadvantages tied to kidney failure risk after ICU acute kidney injury

Patients who develop acute kidney injury while in the intensive care unit face a small but serious risk of progressing to kidney failure after they leave the hospital, and new research presented at ASN Kidney Week 2026 in Denver suggests that social circumstances may be linked with who is most likely to make that transition. The study, drawn from 2012 to 2022 records at a major US academic medical center, followed 30,498 adults who experienced acute kidney injury during critical illness and survived to hospital discharge. Using the hospital’s electronic health record together with the US Renal Data System, the investigators tracked each survivor for up to two years, an approach that allowed them to capture kidney failure diagnoses that occurred both inside and outside the original health system.

During follow-up, 2,723 patients, or 9 percent of the cohort, died, and 326 patients, or 1 percent, developed kidney failure. After statistical adjustments, the team found that several individual- and neighborhood-level social determinants of health were associated with the risk of developing post-discharge kidney failure. Black race was associated with a 43 percent higher risk of kidney failure compared with white race, while having health insurance coverage was associated with a 40 percent lower risk. Neighborhood-level socioeconomic disadvantage was also independently associated with increased risk, with higher risks observed among residents of moderately and highly deprived neighborhoods compared with those living in less deprived areas.

According to the study’s authors, measuring social determinants of health in a standardized way during clinical care could improve risk stratification of kidney failure and help identify which acute kidney injury survivors are most likely to benefit from post-discharge interventions. “Standardized assessment of social determinants of health in clinical practice may improve risk stratification of kidney failure and identify acute kidney injury survivors most likely to benefit from post-discharge interventions,” said first author Dilaram Acharya, MPH, PhD, of the University of Alabama at Birmingham. Corresponding senior author Javier Neyra, MD, MSCS, also of the University of Alabama at Birmingham, emphasized that the next step is turning these associations into actionable care. “Implementation studies of best practices to promote kidney health in vulnerable populations are needed,” he said.

Because the research was presented as a conference proceeding rather than a published peer-reviewed paper, the results should be considered preliminary, and the single-center design means the findings may not generalize to all hospitals or patient populations. The observational nature of the study also means that the reported associations between race, insurance coverage, neighborhood deprivation, and kidney failure risk do not by themselves establish causal pathways; unmeasured clinical and access-related factors could contribute to the differences observed. Even so, the large cohort size and the linkage of hospital records with the US Renal Data System lend weight to the central conclusion that social disadvantage is independently associated with kidney failure risk among survivors of critical illness and acute kidney injury.

Subject of Research: Associations between individual- and neighborhood-level social determinants of health and post-discharge kidney failure risk among ICU survivors of acute kidney injury

Article Title: Social determinants of health linked with kidney failure risk among survivors of critical illness and acute kidney injury

Article References: Social determinants of health linked with kidney failure risk among survivors of critical illness and acute kidney injury. Original publication (Bibliographic details unavailable.)

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Keywords: acute kidney injury, kidney failure, social determinants of health, critical illness, intensive care, health insurance, neighborhood deprivation, health disparities, end-stage kidney disease, ASN Kidney Week 2026, risk stratification, nephrology