Language Barriers Significantly Increase Delirium risk for older Surgical Patients
A new study reveals that older patients who speak a language other then English face a substantially higher risk of developing postoperative delirium, a perhaps debilitating complication following surgery.the research, presented at the ANESTHESIOLOGY 2025 annual meeting, also highlights the compounding effect of lower socioeconomic status on this increased risk.
Postoperative delirium, characterized by confusion and altered mental function, affects up to 15% of surgical patients and can be even more prevalent in high-risk groups, such as those recovering from hip fractures. This complication represents a critically important challenge in geriatric care.
“Our study provides evidence that speaking a first or primary language other than English is an independent risk factor for delirium in U.S. patients undergoing anesthesia for surgery, even after ruling out other factors such as prior diagnoses of sleep apnea and type and duration of surgery,” explained a senior researcher involved in the study. “We also found that delirium in these patients contributed to longer hospital stays, which can further delay recovery.”
The study, encompassing data from 49,588 patients aged 60 and older who underwent general anesthesia for non-cardiac and non-transplant surgery between 2011 and 2024 at a U.S. academic hospital, underscores the growing need to address linguistic diversity within the healthcare system. Researchers meticulously reviewed patient charts and utilized various assessment tools to identify instances of delirium occurring within seven days post-surgery. Thier analysis accounted for a wide range of patient and procedural factors, including social determinants of health like socioeconomic status.
Of the nearly 50,000 patients analyzed, 4,287 (8.7%) reported speaking a primary language other than English, with Spanish (28.5%) and Cantonese (13.5%) being the most common. 2,328 patients (4.7%) experienced postoperative delirium – 2,093 who primarily spoke English and 235 who did not.
why did this happen? Researchers identified a correlation between language barriers and increased delirium risk in older surgical patients. The study aimed to quantify this risk and explore contributing factors.
who was involved? The study involved 49,588 patients aged 60 and older undergoing surgery at a U.S. academic hospital between 2011 and 2024. Researchers, anesthesiologists, and healthcare professionals analyzed patient data.
The data revealed that patients whose primary language was not English were 23% more likely to develop delirium after surgery compared to their English-speaking counterparts. This risk escalated to 31% higher among non-English-speaking patients with lower estimated household incomes. notably, even when interpreter services were utilized – in 151 of the 235 delirium cases involving Spanish or other non-English speakers – the risk of delirium was not reduced.
“Most clinical interactions happen on the wards and in the ICU, where interpreter services aren’t always readily available-especially in the first days after surgery, when most delirium occurs,” a led investigator stated. “While more research is needed on mechanisms, we suspect that greater confusion and fewer opportunities for verbal reorientation during this early postoperative phase may help explain the elevated delirium risk, even when interpreters are used.”
What was the key finding? Non-English speaking patients had a 23% higher risk of postoperative delirium, increasing to 31% for those with lower incomes, even with interpreter services.
The authors emphasize the importance of proactively
