Falls at Home Drive Most Trauma in Older Iranians, Registry Study Finds

When an older adult falls, the consequences can ripple through an entire health system. A new retrospective study drawing on Iran’s National Trauma Registry offers one of the clearest local pictures yet of how injuries strike people aged 60 and above, and the findings carry a blunt message for clinicians and policymakers alike: most serious trauma in later life happens not on busy roads but inside the home, and it happens overwhelmingly as a result of falls. The research, published in BMC Geriatrics, analyzed 884 trauma patients admitted to a single major trauma center over more than four years, and its statistical texture reveals patterns that the authors argue should reshape fall-prevention strategy and the design of age-responsive emergency care.

The study team, led by Vali Bahrevar and Hassan Rezaeipandari of the Elderly Health Research Center at Shahid Sadoughi University of Medical Sciences in Yazd, mined clinical records at Shahid Rahnamoon Hospital, a facility affiliated with the National Trauma Registry of Iran. Their window stretched from September 2017 through December 2021, capturing every older patient who presented with trauma during that period. Because the registry standardizes how injuries are coded, the dataset allowed the researchers to move beyond anecdote and quantify who gets hurt, how, where, and with what severity. They extracted demographic information, the type and cause of each injury, injury severity, level of consciousness, and clinical outcome, then interrogated the data with chi-square tests, analysis of variance, and log-linear regression, a modeling approach well suited to counting how often combinations of characteristics appear relative to expectation.

The headline numbers are striking in their simplicity. The mean age of the 884 patients was 72.5 years, with a standard deviation of 13.6, and nearly two-thirds, 64.4 percent, were male. A large majority, 85.2 percent, were married. When the researchers tallied the anatomical distribution of injuries, two body regions dominated: the head, accounting for 25.6 percent of trauma types, and the hip or thigh, at 23.4 percent. At the other end of the spectrum, hand injuries were the least frequent, appearing in just 7.6 percent of cases. That pairing of head and hip injuries is epidemiologically telling, because both are classic signatures of fall-related trauma in older bodies, where diminished balance, slower protective reflexes, and reduced bone density converge to turn a slip into a fracture or a head strike.

The mechanism behind those injuries was unambiguous. Falls were the leading cause of trauma, responsible for 50.3 percent of all cases, meaning that half of the older adults arriving at the trauma center had been injured simply by falling. Most injuries occurred at home, which accounted for 46.2 percent of cases, and the vast majority, 70.2 percent, happened during daytime hours. The daytime concentration makes physiological sense: older adults are more active while awake and upright during the day, and daylight hours are when household chores, bathing, walking, and other fall-prone activities take place. Nearly nine in ten patients, 89 percent, arrived with a normal level of consciousness, suggesting that while the injuries were significant enough to warrant hospital admission, many patients retained full neurological function at presentation.

The log-linear regression analysis added a layer of statistical nuance that raw counts alone cannot provide. Expected trauma counts were 1.8 times higher among male patients than female patients, a ratio that held after accounting for the structure of the data. Age produced an even steeper gradient: patients aged 60 to 74 had a 4.5-fold higher ratio of expected trauma counts than those aged 85 and older. At first glance that may seem counterintuitive, since fall risk generally climbs with advancing age, but the pattern likely reflects exposure. The youngest members of the older-adult cohort are typically more mobile, more physically active, and more frequently out in the world, and therefore accumulate more opportunities for injury, while the very old may be more housebound or, in some health systems, less likely to reach a major trauma center at all.

Perhaps the most policy-relevant findings concern the socioeconomic fingerprints of trauma. Lower educational level, marital status, native residency, and Iranian nationality were all significantly associated with the distribution of trauma characteristics, with the associations reaching a p-value below 0.001. In practical terms, the researchers found that injury patterns were not randomly distributed across the population but clustered along lines of schooling, family structure, and local versus migrant status. Such associations matter because they hint at modifiable pathways: education shapes awareness of hazards and adoption of preventive behaviors, marital status influences supervision and living arrangements, and residency status can affect access to safe housing and health services. A trauma registry that captures these variables can therefore point prevention programs toward the communities that need them most.

The clinical implications of the hip and thigh findings deserve particular emphasis. Hip fractures in older adults are among the most consequential injuries in all of medicine, frequently triggering a cascade of immobility, loss of independence, surgical complications, and elevated one-year mortality. International orthogeriatric literature has long emphasized that rapid surgical fixation, early mobilization, and coordinated rehabilitation dramatically improve outcomes, but none of that matters if the fracture is never prevented. Given that falls at home caused half of the trauma in this cohort, the authors argue their findings should inform targeted fall-prevention strategies, which in practice means home hazard assessment, lighting improvements, grab bars in bathrooms, vision correction, medication review for drugs that cause dizziness, and strength and balance training programs tailored to older bodies.

Head injuries carry their own burden. Even when consciousness appears normal on arrival, blunt head trauma in older adults raises the specter of intracranial bleeding, particularly in patients taking anticoagulant medications, and guidelines worldwide recommend a low threshold for computed tomography imaging in this group. The fact that 89 percent of patients in the Iranian cohort presented with normal consciousness underscores a subtle danger: an older patient who walks in talking coherently after a fall may still harbor a slowly expanding hematoma. Trauma systems designed around younger, high-energy injuries, such as those from vehicle collisions, may under-triage older patients whose low-energy falls nonetheless produce serious internal damage. The study’s detailed characterization of injury types and severity provides the kind of local evidence base that registries exist to supply.

There are, as with any single-center retrospective analysis, limits to how far the conclusions travel. The data come from one hospital within one national registry, so referral patterns, local housing conditions, and regional demographics may shape the observed distribution of injuries. Retrospective designs also depend on the completeness and accuracy of recorded clinical records. Still, the four-and-a-half-year span and the standardized registry framework give the findings a solidity that convenience samples lack, and the consistency of the fall-at-home pattern with international geriatric trauma literature suggests the core message generalizes: aging populations convert ordinary domestic environments into the primary battleground of traumatic injury.

Iran, like much of the world, is aging quickly, and the arithmetic of demography guarantees that trauma volumes among older adults will grow unless prevention keeps pace. The Yazd team’s analysis, funded by the Elderly Health Research Center of Shahid Sadoughi University of Medical Sciences and approved by the university’s research ethics committee, demonstrates how registry data can be transformed from administrative record-keeping into actionable public health intelligence. Half of all injuries caused by falls, nearly half occurring at home, and socioeconomic gradients etched into the injury distribution together sketch a prevention agenda: engineer safer homes, screen for fall risk at primary care visits, and train emergency systems to recognize that a quiet fall in a living room can be as medically consequential as a highway crash. For the 884 patients in this dataset, the harm was already done; for health systems everywhere confronting the same demographic wave, the study is a preview worth heeding.

Subject of Research: Epidemiology and injury patterns of trauma in older adults in Iran

Article Title: Trauma patterns and epidemiological characteristics among older adults: a retrospective registry-based study in Iran

Article References: Bahrevar, V., Hosseini, S., Saeed-Banadaky, S. H., & Rezaeipandari, H. (2026). Trauma patterns and epidemiological characteristics among older adults: a retrospective registry-based study in Iran. BMC Geriatrics. https://doi.org/10.1186/s12877-026-08368-9

Image Credits: AI Generated

DOI: 10.1186/s12877-026-08368-9

Keywords: geriatric trauma, falls, older adults, Iran, National Trauma Registry, hip fracture, head injury, home safety, injury epidemiology, fall prevention, BMC Geriatrics, retrospective study