Emergency department utilization by the elderly: analysis of the National Hospital Ambulatory Medical Care Survey

Predictive Factors for Major Complications and Urological Cancer Diagnosis in Older Adults (≥80 Years) Admitted to the Emergency Department for Hematuria

Background: Gross Hematuria is a relevant cause of admission to the emergency department in the general population and particularly in older adults (≥80 years). This specific urological symptom is often underestimated and usually associated with benign conditions such as urinary infections or poor hydration. Nevertheless, hematuria could lead to severe acute complications or be the first symptom of urological cancers. Methods: We retrospectively analyzed clinical data from 1169 patients aged ≥80 years consecutively admitted to the emergency department for hematuria. The primary endpoint of the study was to identify risk factors for major complications, and the secondary endpoint was to analyze risk factors for urological cancer diagnosis. The median age was 85 years (IQR 82-88 years), and 908 (77%) were males. Among them, 449 (38.4%) had a past medical history of urological neoplasm (kidney, ureter, bladder, prostate, or urethral cancer). Results: Overall, 87 patients (7.4%) had major complications (patient death, septic shock, and admission to the intensive care unit). Worse vital signs at admission, fever, and confusion (p < 0.001, OR 18.0 IC 95% [5.5-58.7]; p = 0.015, OR 2.0 IC 95% [1.1-3.5]; p = <0.001, OR 4.2 IC 95% [1.9-3.5], respectively), as well as lower hemoglobin values and higher Charlson comorbidity index (p < 0.001, OR 0.8 IC 95% [0.7-0.9]), p = 0.002, OR = 1.2 [1.1-1.3]) were independent predictive factors for major complications. The multivariate analysis identified as risk factors for diagnosis of urological cancer older age, male sex and higher comorbidity (OR 1.05 IC95% [1-1.09]; OR 2.19 IC95% [1.42-3.39] and OR 1.11 IC95% [1.2-1.2], respectively); interestingly the presence of indwelling vesical catheter (IVC) (OR 0.44 IC95% [0.24-0.82]) resulted as an independent factor for absence of urological cancers. Conclusions: Hematuria is a frequent symptom in older adults admitted to the emergency department. While this is often associated with benign conditions, there are some risk factors for major complications and for urological cancer that must be taken into account to identify the patients who need further evaluation or prompt hospital admission.

A Descriptive Study of Emergency Department Visits Within 30 Days of Discharge

BACKGROUND

Unnecessary emergency department (ED) visits are a crucial consideration in discharge planning for acutely admitted patients. This study aimed to identify the reasons for unnecessary visits to the ED within 30 days of discharge from a medical hospitalist unit.

METHODS

We performed a retrospective review of patients discharged in 2018 from a medical unit of tertiary teaching hospital in Korea. The authors discussed in-depth and determined whether or not an ED visit was unnecessary, and further classified the causes of unnecessary visits into three categories.

RESULTS

The mean age of the patients was 62.9 years (range, 15-99 years), and among the 1,343 patients discharged from the unit, 720 (53.6%) were men. Overall, 215 patients (16.0%) visited the ED within 30 days after discharge; among them, 16.3% were readmitted. Of the 215 cases of ED visits within 30 days after discharge, 57 (26.5%) were considered unnecessary. Of these, 30 (52.6%) were categorized as having failed care transition, 15 (26.3%) had unestablished care plans for predictable issues, and 12 (21.1%) had insufficient patient education.

CONCLUSION

A substantial number of short-term ED visits by discharged multimorbid or older medical patients were considered unnecessary. Discharging patients with a thorough discharge plan is essential to avoid unnecessary ED visits.

Where Skilled Nursing Facility Residents Get Acute Care: Is the Emergency Department the Medical Home?

OBJECTIVES

This study aimed to characterize the distribution of acute care visits among Medicare beneficiaries receiving skilled nursing facility (SNF) services.

METHODS

We conducted a cross-sectional analysis of a 20% sample of continuously enrolled Medicare beneficiaries in the 2012 Chronic Condition Warehouse data set. Beneficiaries were grouped by the number of days of SNF services, and acute care visits were categorized as "before SNF," "during SNF," or "after SNF."

RESULTS

Among the 10,717,786 Medicare beneficiaries analyzed, 384,312 (3.6%) had at least one SNF stay.

DISCUSSION

Beneficiaries who received SNF services had a higher proportion of acute care visits made to emergency departments (EDs) than beneficiaries who did not receive SNF services. Also, a higher proportion of acute care visits were made to EDs by beneficiaries after a SNF stay in comparison to residents actively residing in a SNF. The acute care capabilities of SNFs and post-SNF transitions of care to the community setting are discussed.

Indications for Emergency Abdominal Surgeries in Older Patients: 7-Year Experience of a Single Centre

The majority of patients undergoing emergency laparotomy are older adults that carry the highest mortality. More research into the development of targeted interventions is required. Therefore, the aim of the study was to analyse the indications for emergency abdominal surgery in patients aged ≥ 65 admitted to the Department of General Surgery. The study included consecutive patients aged ≥ 65 who underwent emergency abdominal surgery within 48 h after admission at one institution. In 2010–2017, 986 patients were enrolled in the study (female 57%, male 43%). Patients were divided into three age groups, 65–70, 71–84 and ≥ 85, with 255 patients (25.9%), 562 patients (57.0%) and 169 patients (17.1%) in each group, respectively. In the first and second age groups, the most common indications for surgery were acute cholecystitis, non-malignant ileus, colorectal cancer complications and acute appendicitis. In the oldest patients, the most common indications were complications of colorectal cancer, acute cholecystitis, non-malignant ileus and complications of diverticulosis. In the women, the biggest differences in indications between age groups were colorectal cancer (p = 0.025) and peptic ulcer disease complications (p = 0.005); in the men, the biggest difference was seen for complicated diverticulitis (p = 0.001). The most frequent comorbidities were heart diseases (81.0%), followed by endocrine (33.6%) and vascular diseases (22.7%). The three most common indications for emergency surgery in older patients at our institution were acute cholecystitis, colorectal cancer complications and non-malignant bowel obstruction, affecting 59.5% of this group of patients. Elective surgery and endoscopic screening have the potential to prevent major part of these acute diseases. However, further prospective research is necessary on this field, particularly among frail, older patients.

Feasibility of predictive model by clinical and laboratory parameters for risk stratification of geriatric abdominal pain

Background:

Assessment of geriatric patients presented with abdominal pain had been challenge for emergency physicians with the ageing population. A rapid, reproducible risk stratification model for the assessment of the need for admission for geriatric abdominal pain would be required to identify low-risk patients to be managed as out-patient basis.

Objective:

Assess the feasibility of risk stratification model to predict the need of hospital admission based on readily available bedside parameters in emergency departments.

Methods:

This is a multicenter retrospective cohort study in four emergency departments. Patients aged at least 65 who presented with chief complaint of abdominal pain within the previous 7 days of attendance as the chief complaint were included. Chart review was performed for the included patients. The primary outcome was defined as a composite of mortality, abdominal surgery or endoscopic treatment, and other inpatient treatments for abdominal diseases within 14 days, surrogating the need of hospital admission. Logistic regression was modeled to identify independent predictors. The diagnostic accuracy of the risk model was evaluated with the receiver operating characteristic curve and compared with the clinical gestalt of decision for hospital admission by the attending physician.

Results:

In total, 553 patients were included. Symptoms of upper gastrointestinal bleeding, non-ambulatory presenting status, pain duration, focal abdominal tenderness, hyperglycemia, leukocytosis, and elevated creatinine were independent predictors of the outcome. The area under the receiver operating characteristic curve of the predicted probabilities of the logistic model was 0.741. In keeping for a low-risk criterion to achieve more than 90% sensitivity, the predictive model would only achieve 18.2% specificity which was inferior to clinical gestalt for hospital admission (sensitivity 99.3%, specificity 44.3%).

Conclusion:

Risk stratification model by clinical assessment and laboratory markers alone were inadequate and inferior to clinical gestalt for identification of the group of patients requiring inpatient treatment.

Trends and Weekly Cycles in a Large Swiss Emergency Centre: A 10 Year Period at the University Hospital of Bern

Popular demand for high quality care has increased in recent years. This is also the case for medical services and support at all times of the day and night is nowadays required. During the last ten years, there has been a marked increase in the demands on hospital emergency hospitals, particularly in the Western industrialized countries. The present retrospective study investigates how the demands on a large Swiss university centre have changed over a period of 10 years. Patient numbers are differentiated by age, gender, nationality, weekday and mode of referral. A retrospective analysis was performed of the data of the patients admitted to the Emergency Centre of Bern University Medical Hospital (Inselspital) during the ten-year period from 2004 up to and including 2013 and who were treated as emergencies. A total of 264,272 patients were included in the study. It was shown that there was an uninterrupted annual increase from 23,555 patients in 2004 to 34,918 patients in 2013 (+48%). Most patients came to the Emergency Centre on Mondays, followed by Fridays. Because of the marked increase in life expectancy and the resulting demographic changes, there has been a marked increase in the number of older patients coming to the Emergency Centre for acute medical care. It was found that there were disproportionately high numbers of patients aged 20 to 49 years who were not Swiss citizens. In contrast, most patients over 60 were Swiss. In the coming years, emergency centres will have to adapt to the continued increase in patient numbers. This trend will continue, so that it is essential to consider the sociodemographic structure of a region when planning the availability of emergency medical care.

Use of Online Health Information by Geriatric and Adult Emergency Department Patients: Access, Understanding, and Trust

OBJECTIVE

The objective was to characterize geriatric patients' use of online health information (OHI) relative to younger adults and assess their comfort ith OHI compared to health information (HI) from their physician.

METHODS

This was a prospective cross-sectional survey study of adult emergency department (ED) patients. The survey assessed patients' self-reported use of OHI in the past year and immediately prior to ED visit and analyzed differences across four age groups: 18-39, 40-64, 65-74, and 75+. Patients' ability to access, understand, and trust OHI was assessed using a 7-point Likert scale and compared to parallel questions regarding HI obtained from their doctor. Patient use of OHI was compared across age groups. Comfort with OHI and HI obtained from a doctor was compared across age groups using the Kruskal-Wallis test. Comparisons between sources of HI were made within age groups using the Wilcoxon signed-rank test.

RESULTS

Of 889 patients who were approached for study inclusion, 723 patients (81.3%) completed the survey. The majority of patients had used OHI in the past year in all age groups, but older patients were less likely to have used OHI: age 18-39, 90.3%; 40-64, 85.3%; 65-74, 76.4%; and 75+, 50.7% (p < 0.001). The youngest patients were most likely to have used OHI prior to coming to the ED, 47.1%, 28.3%, 17.1%, and 8.0% (p < 0.001). Older patients were more likely to have an established doctor-18-39, 79.4%; 40-64, 91.1%; 65-74, 97.5%; and 75+ 97.4% (p < 0.001)-and were more likely to have contacted their doctor prior to their ED visit: 36.7, 40.2, 46.7, and 53.5% (p = 0.02). The oldest patients were most likely to find HI more accessible from their doctor than the Internet, while the youngest patients found HI more accessible on the Internet than from their doctor. Regardless of age, patients noted that information from their physician was both easier to understand and more trustworthy than information found on the Internet.

CONCLUSION

Although many older patients used OHI, they were less likely than younger adults to use the Internet immediately prior to an ED visit. Despite often using OHI, patients of all age groups found healthcare information from their doctor easier to understand and more trustworthy than information from the Internet. As health systems work to efficiently provide information to patients, addressing these perceived deficiencies may be necessary to build effective OHI programs.

Team-based versus traditional primary care models and short-term outcomes after hospital discharge

BACKGROUND

Strategies to reduce hospital readmission have been studied mainly at the local level. We assessed associations between population-wide policies supporting team-based primary care delivery models and short-term outcomes after hospital discharge.

METHODS

We extracted claims data on hospital admissions for any cause from 2002 to 2009 in the province of Quebec. We included older or chronically ill patients enrolled in team-based or traditional primary care practices. Outcomes were rates of readmission, emergency department visits and mortality in the 90 days following hospital discharge. We used inverse probability weighting to balance exposure groups on covariates and used marginal structural survival models to estimate rate differences and hazard ratios.

RESULTS

We included 620 656 index admissions involving 312 377 patients. Readmission rates at any point in the 90-day post-discharge period were similar between primary care models. Patients enrolled in team-based primary care practices had lower 30-day rates of emergency department visits not associated with readmission (adjusted difference 7.5 per 1000 discharges, 95% confidence interval [CI] 4.2 to 10.8) and lower 30-day mortality (adjusted difference 3.8 deaths per 1000 discharges, 95% CI 1.7 to 5.9). The 30-day difference for mortality differed according to morbidity level (moderate morbidity: 1.0 fewer deaths per 1000 discharges in team-based practices, 95% CI 0.3 more to 2.3 fewer deaths; very high morbidity: 4.2 fewer deaths per 1000 discharges, 95% CI 3.0 to 5.3; p < 0.001).

INTERPRETATION

Our study showed that enrolment in the newer team-based primary care practices was associated with lower rates of postdischarge emergency department visits and death. We did not observe differences in readmission rates, which suggests that more targeted or intensive efforts may be needed to affect this outcome.

A national survey of Canadian emergency medicine residents' comfort with geriatric emergency medicine

BACKGROUND

Geriatric patients represent a large and complex subgroup seen in emergency departments (EDs). Competencies in geriatric emergency medicine (EM) training have been established. Our objectives were to examine Canadian postgraduate year (PGY)-5 EM residents' comfort with the geriatric EM competency domains, assess whether Canadian EM residents become more comfortable through residency, and determine whether geriatric educational exposures are correlated with resident comfort with geriatric EM.

METHODS

A national, cross-sectional study of PGY-1 and PGY-5 Royal College EM residents was conducted to determine their comfort in geriatric EM clinical competency domains. Residents reported their level of comfort in satisfying each competency domain using a seven-point Likert scale. Residents were also asked about the location of their medical education as well as the type and number of different geriatric exposures that they had received to date.

RESULTS

Of the 141 eligible residents from across Canada, 77% (109) consented to participate. None of the PGY-1 EM residents and 34% (14) of PGY-5 EM residents reported that they were comfortable with all eight geriatric EM competency domains. PGY-5 EM residents were significantly more comfortable than PGY-1 EM residents. Residents reported a highly variable range of geriatric educational exposures obtained during training. No relationship was found between resident-reported comfort and the nature or number of geriatric exposures that they had received.

CONCLUSION

Current Royal College EM residency training in Canada may not be adequately preparing graduates to be comfortable with defined competencies for the care of older ED patients.

Overuse of Head Computed Tomography in Cirrhosis With Altered Mental Status

BACKGROUND

Head computed tomography (CT) scans are ordered in patients with cirrhosis along with altered mental status (AMS) during admission, often, despite lack of evidence of any structural abnormality. Thus, we aimed to examine the use of head CT scans in patients with cirrhosis along with AMS and to correlate scan abnormalities with causes of AMS and physical findings.

MATERIALS AND METHODS

We defined AMS as having impaired cognition, diminished attention, reduced awareness or altered level of consciousness or all of these, and categorized AMS into the following groups: hepatic encephalopathy (HE), sepsis or infectious, metabolic, exogenous drugs or toxins, structural lesions or psychiatric abnormalities. The primary outcome was presence of any structural brain lesion on head CT scan in patients with cirrhosis along with AMS with correlation of focal neurologic deficits, specifically in patients with HE.

RESULTS

In total, 349 of 1,218 patients with cirrhosis who were admitted to the hospital had AMS; HE was the most common cause of AMS (164 of 349, 47%). A total of 64% (223 of 349) of patients with cirrhosis along with AMS underwent head CT scanning on admission, including 99 of 164 (60%) patients with HE. No patient with HE had focal neurologic findings, or a focal abnormality on head CT scan. Of the patients with focal abnormalities on CT scans, 100% had focal neurologic findings. Patients with cirrhosis along with AMS undergoing head CT scan had similar mortality (76 of 223, 34%) as those with AMS not undergoing head CT scans (47 of 126, 37%; P = nonsignificant).

CONCLUSIONS

Nearly two-thirds of patients with cirrhosis along with AMS had head CT scans performed on admission; all patients with a structural lesion on head CT scan had abnormal neurologic examinations. The data suggest that routine brain imaging in patients with cirrhosis that do not have focal neurologic findings is likely not indicated.

Risk of Unplanned Emergency Department Readmission after an Acute-Care Hospital Discharge among Geriatric Inpatients: Results from the Geriatric EDEN Cohort Study

OBJECTIVES

The study aims 1) to examine whether items of the brief geriatric assessment (BGA) or their combinations predicted the risk of unplanned emergency department readmission after an acute care hospital discharge among geriatric inpatients, and 2) to determine whether BGA could be used as a prognostic tool for unplanned emergency department readmission.

METHODS

A total of 312 older patients (mean age, 84.6 ± 5.4 years; 64.1% female) hospitalized in acute care wards after an emergency department visit were recruited in this observational prospective cohort study and separated into 2 groups based on the occurrence or not of an unplanned emergency department readmission during a 12-month follow-up period after their hospital discharge. A 6-item BGA was performed at emergency department admission before the discharge to acute care wards. Information on incident unplanned emergency department readmission was prospectively collected by phone call and by consulting the hospital registry. Several combinations of items of BGA identifying three levels of risk of unplanned emergency department readmission (i.e., low risk, intermediate risk and high risk) were examined.

RESULTS

The unplanned emergency department readmission was more frequently associated with a temporal disorientation (P=0.004). Area under receiver operating characteristic curves of unplanned emergency department readmission based on BGA items and their combinations ranged from 0.53 to 0.61. The best predictor of unplanned emergency department readmission was the temporal disorientation (hazard ratio>1.65, P<0.035), which defined the high-risk group. Inpatients classified in high-risk group of unplanned emergency department readmission were more frequently readmitted to emergency department than those in intermediate- and low-risk groups (P log Rank <0.004). Prognostic values for unplanned emergency department readmission of items and their combinations were poor with sensitivity below 67%, specificity ranging from 36.4 to 53.7, and positive likelihood ratio below 1.4.

CONCLUSIONS

The items of BGA and their combinations were significant risk factors for unplanned emergency department readmission, but their prognostic value was poor.

Disability is associated with emergency room visits in the elderly: a population-based study

BACKGROUND

Emergency room (ER) visits and hospitalizations of elderly subjects with chronic comorbidities, often disabled, are increasing.

AIMS

The aim of the present study was to assess whether among older subjects functional disability is associated with increased ER visits and hospitalization rates.

METHODS

We assessed the association of functional ability with 1-year ER visits and hospitalization rates in all 342 subjects aged 75+ living in Tuscania (Italy) in 2004. Functional ability was estimated using the Katz' activities of daily living (ADLs), and the Lawton and Brody scale for the instrumental activities of daily living (IADLs). Functional disability was defined as the dependence for two or more ADLs or IADLs.

RESULTS

According to Cox regression, disability in ADLs was associated with increased risk of ER visits (RR 2.12; 95 % CI 1.11-4.08; P = .023) but not of hospital admission (RR 1.50; 95 % CI .80-2.80; P = .208). Also, in Poisson regression, ADLs disability predicted the number of ER visits (IRR 2.56; 95 % CI 1.48-4.40; P = .001).

DISCUSSION

Disability is associated with increased risk of ER visits, but not of subsequent hospitalization in community-dwelling elderly, independent of clinical conditions. Dedicated studies are needed to evaluate the impact of social interventions for disabled elderly on ER access rates.

CONCLUSIONS

Emergency Departments should implement innovative triage procedures to identify older patients with disability who gain access to ER, to recognize and classify any unmet social needs.

Utilization of the emergency department by older residents in Kuala Lumpur, Malaysia

AIM

To determine the pattern of utilization of emergency department (ED) services by older patients in Kuala Lumpur, Malaysia, compared with younger patients in the same setting.

METHODS

The sociodemographics, clinical characteristics and resource utilization of consecutive patients attending the adult ED at the University Malaya Medical Center were recorded during a typical week.

RESULTS

A total of 1649 patients were included in the study; 422/1649 (25.6%) were aged ≥60 years and 1077 (74.4%) were aged <60 years. Older adult patients were more likely to be diagnosed with ischemic heart disease (12.6% vs 2.5%, P < 0.001), and more likely to require investigations such as electrocardiogram (68.1% vs 16.6%, P < 0.001) or chest X-rays (67.6% vs 24.0%, P < 0.001) than their younger counterparts. Logistic regression methods showed that older adults remained an independent predictor of hospital admission (OR 2.75, 95% CI 2.11-3.57).

CONCLUSION

The ratio of older adult patients attending our ED over the proportion of older people in the general population was 26:6, which is far higher than reported in previous published studies carried out in other countries. Older ED attenders are also more likely to require investigations, procedures and hospital admissions. With the rapidly aging population in Malaysia, reconfiguration of resources will need to occur at a compatible rate in order to ensure that the healthcare needs of our older adults are met.

Treatment-limiting decisions, comorbidities, and mortality in the emergency departments: a cross-sectional elderly population-based study

BACKGROUND

Older adults experience a higher risk of death in the emergency departments (EDs), in part, as a result of their comorbidities. A treatment-limiting decision is often reported for older adults who die in the EDs. The Charlson Comorbidity Index (CCI) is a validated method for the scoring of comorbidities. Whether an association between the CCI and treatment-limiting decisions exists remains unknown.

OBJECTIVE

To determine whether the CCI was associated with the treatment-limiting decisions made for older patients who die in the EDs.

METHODS

A total of 2,095 patients ≥65 years old who died in the EDs in France and Belgium were prospectively included between 2004 and 2005. The recorded data included: 1) the CCI score; 2) patient age; 3) gender; 4) living in senior housing facilities; 5) hospitalizations occurring in the previous year; 6) presence of functional limitations (according to the Knaus classification); 7) chronic diseases; and 8) presence of organ failure(s). A treatment-limiting decision was defined as a predetermined choice not to implement therapies that would otherwise be required to sustain life.

RESULTS

A treatment-limiting decision was identified in 993 (47%) patients. Fully-adjusted logistic regression model showed that a CCI ≥ 5 (OR=25.56 with P=0.037), age ≥85years (OR=20.33 with P<0.001), living in an institution (OR=0.15 with P=0.017), hematologic (OR=6.92 with P=0.020) and respiratory disease (OR=0.17 with P=0.046), and neurologic causes (OR=0.20 with P=0.010) of organ failure were significantly associated with treatment-limiting decisions.

CONCLUSION

An elevated CCI score (≥5) was associated with a treatment-limiting decision in elderly patients evaluated in the EDs. Further research is needed to corroborate this finding.

Triage Ability of Emergency Medical Services Providers and Patient Disposition: A Prospective Study

Study objective:

To determine the ability of emergency medical services (EMS) providers to subjectively triage patients with respect to hospital admission and to determine patient characteristics associated with increased likelihood of admission.

Methods:

A prospective, cross-sectional study of a consecutive sample of patients arriving by ambulance during the month of February 1997 at an urban, university hospital, Emergency Department. Emergency medical services providers completed a questionnaire asking them to predict admission to the hospital and requested patient demographic information. Predictions were compared to actual patient disposition.

Results:

A total of 887 patients were included in the study, and 315 were admitted to the hospital (36%). With respect to admission, emergency medical services providers had an accuracy rate of 79%, with a sensitivity of 72% and specificity of 83% (kappa = 0.56). Blunt traumatic injury and altered mental status were the most common medical reasons for admission. Variables significantly associated with high admission rates were patients with age > 50 years, chest pain or cardiac complaints, shortness of breath or respiratory complaints, Medicare insurance, and Hispanic ethnicity. The emergency medical services providers most accurately predicted admission for patients presenting with labor (kappa = 1.0), shortness of breath / respiratory complaints (kappa = 0.84), and chest pain (kappa = 0.77).

Conclusion:

Emergency medical services providers can predict final patient disposition with reasonable accuracy, especially for patients presenting with labor, shortness of breath, or chest pain. Certain patient characteristics are associated with a higher rate of actual admission.

Emergency department visits by nursing home residents in the United States

OBJECTIVES

To characterize emergency department (ED) use by nursing home residents in the United States.

DESIGN

Analysis of the National Hospital Ambulatory Medical Care Survey.

SETTING

U.S. EDs from 2005 to 2008.

PARTICIPANTS

Individuals visiting U.S. EDs stratified according to nursing home residency.

MEASUREMENTS

All ED visits by nursing home residents were identified. The demographic and clinical characteristics and ED resource utilization, length of stay, and outcomes of nursing home residents and nonresidents were compared.

RESULTS

During 2005 to 2008, nursing home residents accounted for 9,104,735 of 475,077,828 U.S. ED visits (1.9%; 95% confidence interval (CI) = 1.8-2.1%). The annualized number of ED visits by nursing home residents was 2,276,184. Most nursing home residents were older (mean age 76.7, 95% CI = 75.8-77.5), female (63.3%), and non-Hispanic white (74.8%). Nursing home residents were more likely to have been discharged from the hospital in the prior 7 days (adjusted odds ratio (aOR = 1.4, 95% CI = 1.1-1.9), to present with fever (aOR = 1.9, 95% CI = 1.5-2.4) or hypotension (systolic blood pressure ≤90 mmHg, aOR = 1.8, 95% CI = 1.5-2.2), and to receive diagnostic tests (OR = 1.9, 95% CI = 1.6-2.2), imaging (OR = 1.5, 95% CI = 1.3-1.7), or procedures (OR = 1.6, 95% CI = 1.4-1.7) in the ED. Almost half of nursing home residents visiting the ED were admitted to the hospital. Nursing home residents were more likely to be admitted to the hospital (aOR = 1.8, 95% CI = 1.6-2.0) and to die (aOR = 2.3, 95% CI = 1.6-3.3).

CONCLUSION

Nursing home residents account for more than 2.2 million ED visits annually in the United States. Nursing home residents have greater medical acuity and complexity. These observations highlight the national challenges of organizing and delivering ED care to nursing home residents in the United States.

Acute abdominal pain in the older adult

Abdominal pain in older adults is a concerning symptom common to a variety of diagnoses with high morbidity and mortality. Organizing the differential into categories based on pathology (inflammatory, obstructive, vascular, or other causes) provides a framework for the history, physical, and diagnostic studies. An organized approach and treatment and considerations specific to the geriatric population are discussed.

Delirium in the older emergency department patient: a quiet epidemic

Delirium is defined as an acute change in cognition that cannot be better accounted for by a preexisting or evolving dementia. This form of organ dysfunction commonly occurs in older patients in the emergency department (ED) and is associated with a multitude of adverse patient outcomes. Consequently, delirium should be routinely screened for in older ED patients. Once delirium is diagnosed, the ED evaluation should focus on searching for the underlying cause. Infection is one of the most common precipitants of delirium, but multiple causes may exist concurrently.

Accuracy of the Emergency Severity Index triage instrument for identifying elder emergency department patients receiving an immediate life-saving intervention

OBJECTIVES

The study objective was to determine the sensitivity and specificity of the Emergency Severity Index (ESI) triage instrument for the identification of elder patients receiving an immediate life-saving intervention in the emergency department (ED).

METHODS

The authors reviewed medical records for consecutive patients 65 years or older who presented to a single academic ED serving a large community of elders during a 1-month period. ESI triage scores were compared to actual ED course with attention to the occurrence of an immediate life-saving intervention. The sensitivity and specificity of an ESI triage level of 1 for the identification of patients receiving an immediate intervention was calculated. For 50 cases, the triage nurse ESI designation was compared to the triage level determined by an expert triage nurse based on retrospective record review.

RESULTS

Of 782 consecutive patients 65 years or older who presented to the ED, 18 (2%) had an ESI level of 1, 176 (23%) had an ESI level of 2, 461 (60%) had an ESI level of 3, 100 (13%) had an ESI level of 4, and 18 (2%) had an ESI level of 5. Twenty-six patients received an immediate life-saving intervention. ESI triage scores for these 26 individuals were as follows: ESI 1, 11 patients; ESI 2, nine patients; and ESI 3, six patients. The sensitivity of ESI to identify patients receiving an immediate intervention was 42.3% (95% confidence interval [CI]=23.3% to 61.3%); the specificity was 99.2% (95% CI=98.0% to 99.7%). For 17 of 50 cases in which actual triage nurse and expert nurse ESI levels disagreed, undertriage by the triage nurses was more common than overtriage (13 vs. 4 patients).

CONCLUSIONS

The ESI triage instrument identified fewer than half of elder patients receiving an immediate life-saving intervention. Failure to follow established ESI guidelines in the triage of elder patients may contribute to apparent undertriage.

Reduction of 30-day postdischarge hospital readmission or emergency department (ED) visit rates in high-risk elderly medical patients through delivery of a targeted care bundle

RATIONALE

Care coordination has shown inconsistent results as a mechanism to reduce hospital readmission and postdischarge emergency department (ED) visit rates.

OBJECTIVE

To assess the impact of a supplemental care bundle targeting high-risk elderly inpatients implemented by hospital-based staff compared to usual care on a composite outcome of hospital readmission and/or ED visitation at 30 and 60 days following discharge.

PATIENTS/METHODS

Randomized controlled pilot study in 41 medical inpatients predisposed to unplanned readmission or postdischarge ED visitation, conducted at Baylor University Medical Center. The intervention group care bundle consisted of medication counseling/reconciliation by a clinical pharmacist (CP), condition specific education/enhanced discharge planning by a care coordinator (CC), and phone follow-up.

RESULTS

Groups had similar baseline characteristics. Intervention group readmission/ED visit rates were reduced at 30 days compared to the control group (10.0% versus 38.1%, P = 0.04), but not at 60 days (30.0% versus 42.9%, P = 0.52). For those patients who had a readmission/postdischarge ED visit, the time interval to this event was longer in the intervention group compared to usual care (36.2 versus 15.7 days, P = 0.05). Study power was insufficient to reliably compare the effects of the intervention on lengths of index hospital stay between groups.

CONCLUSIONS

A targeted care bundle delivered to high-risk elderly inpatients decreased unplanned acute health care utilization up to 30 days following discharge. Dissipation of this effect by 60 days postdischarge defines reasonable expectations for analogous hospital-based educational interventions. Further research is needed regarding the impacts of similar care bundles in larger populations across a variety of inpatient settings.

Neuroinflammation and disruption in working memory in aged mice after acute stimulation of the peripheral innate immune system

Acute cognitive disorders are common in elderly patients with peripheral infections but it is not clear why. Here, we injected old and young mice with Escherichia coli lipopolysaccharide (LPS) to mimic an acute peripheral infection and separated the hippocampal neuronal cell layers from the surrounding hippocampal tissue by laser capture microdissection and measured mRNA for several inflammatory cytokines (IL-1 beta, IL-6, and TNFalpha) that are known to disrupt cognition. The results showed that old mice had an increased inflammatory response in the hippocampus after LPS compared to younger cohorts. Immunohistochemistry further showed more microglial cells in the hippocampus of old mice compared to young adults, and that more IL-1 beta-positive cells were present in the dentate gyrus and in the CA1, CA2, and CA3 regions of LPS-treated old mice compared to young adults. In a test of cognition that required animals to effectively integrate new information with a preexisting schema to complete a spatial task, we found that hippocampal processing is more easily disrupted in old animals than in younger ones when the peripheral innate immune system is stimulated. Collectively, the results suggest that aging can facilitate neurobehavioral complications associated with peripheral infections probably by allowing the over expression of inflammatory cytokines in brain areas that mediate cognitive processing.

Etiology and clinical course of abdominal pain in senior patients: a prospective, multicenter study

BACKGROUND

The authors describe the epidemiology and clinical course of older persons examined in emergency departments (EDs) for abdominal pain.

METHODS

This was a prospective, multicenter, observational study of older persons (>or=60 years) examined in participating EDs for nontraumatic abdominal pain. Medical records were reviewed for demographics, ED diagnoses, findings of radiographic imaging, disposition, operative procedures, length of hospitalization, and final diagnoses. Patients were interviewed at 2 weeks to determine clinical course, final diagnoses, and mortality status. The authors compared ED diagnoses with final diagnoses, reporting the percentage change in aggregate and for the 12 most common diagnoses.

RESULTS

Of 360 patients (mean age, 73.2+/- 8.8 years; 66% women; 51% white) who met selection criteria, 209 (58%) were admitted to the hospital and 63 (18%) required surgery or an invasive procedure. For patients with complete follow-up information (n=337), 37 (11%) had repeated ED visits and 23 (7%) were readmitted to the hospital. The case-fatality rate was 5%. Leading causes of abdominal pain were nonspecific (14.8%), urinary tract infection (8.6%), bowel obstruction (8%), gastroenteritis (6.8%), and diverticulitis (6.5%). The ED and final diagnoses matched 82% of the time. Older patients had higher mortality rates (odds ratio, 4.4; 95% confidence interval, 1.4--14) and lower diagnostic concordance rates (76% vs 87%; p=.01). Study limitations include inability to enroll all eligible persons and possible inaccuracies in participant-reported follow-up interviews.

CONCLUSIONS

Abdominal pain in older patients should be investigated thoroughly as, in this study, nearly 60% of patients were hospitalized, 20% underwent operative or invasive procedures, 10% had return ED visits, and 5% died within a 2-week follow-up period.

The use of abdominal computed tomography in older ED patients with acute abdominal pain

The objectives of this study were to determine the prevalence of use of abdominal computed tomography (CT) in older ED patients with acute nontraumatic abdominal pain, describe the most common diagnostic CT findings, and determine the proportion of diagnostic CT results. This was a prospective, observational, multicenter study of 337 patients 60 years or older. History was obtained prospectively; charts were reviewed for radiographic findings, dispositions, diagnoses, and clinical course, and patients were followed up at 2 weeks for additional information. The prevalence of use of abdominal CT was 37%. The most common diagnostic findings were diverticulitis (18%), bowel obstruction (18%), nephrolithiasis (10%), and gallbladder disease (10%). Eight percent of patients had findings suggestive of neoplasm. Overall, 57% of CT results were diagnostic (95% confidence interval [CI], 49%-66%), 75% (95% CI, 63%-84%) for patients requiring acute medical or surgical intervention, and 85% (95% CI, 62%-97%) for patients requiring acute surgical intervention. CT use is highly prevalent in older ED patients with acute abdominal pain. CT results are often diagnostic, especially for patients with emergent conditions.

Emergency medicine management of the geriatric patient: an educational program for medical students

This article describes the experience of fourth-year medical students participating in a geriatric education program integrated into a 4-week emergency medicine student clerkship. Between July 2002 and April 2003, all students in this required clerkship participated in a geriatric educational program consisting of a small group discussion of medical and psychosocial issues of older adult emergency department (ED) patients. Students used learned skills to evaluate older adult ED patients for medical and psychosocial issues and later followed up with these patients by telephoning them at their homes or visiting them in the hospital. Students tracked their evaluations of the medical problems, functional abilities, and social supports of patients in the ED. Students also noted when their assessments resulted in the acquisition of new skills or knowledge and when their evaluation of geriatric syndromes resulted in a change of the patient care plan. Seventy-seven students evaluated 217 patients in the ED, of whom 167 (77%) received a follow-up visit or phone call. Students documented learning new skills while caring for 80 (48%) of the older adult patients. Qualitative survey responses from students indicated that students had increased understanding of the importance of assessing functional status and social supports and providing interdisciplinary care. Integrating geriatric education modules into existing emergency medicine clerkships is an effective method to expand the geriatric curriculum in medical schools and to emphasize the importance of geriatric assessment and syndromes in emergency care.

Predictors of outcome in geriatric patients with urinary tract infections

A study was conducted to determine the prognosis of geriatric patients with urinary tract infections (UTIs) and identify clinical factors associated with adverse outcomes. This retrospective, cohort study identified elderly patients (age > or =65 years) presenting to an academic, urban Emergency Department (ED) during a 16-week period with UTI, suggested by urinalysis and pertinent symptoms. There were 37 demographic and clinical variables analyzed as potential predictors of outcome. Morbidity was defined as in-hospital death, Intensive Care Unit (ICU) admission, hospital length of stay (LOS) >2 days, or hospital intravenous (i.v.) antibiotics >2 days. Factors identified by univariate analysis were combined using multiple logistic regression to identify independent predictors of morbidity. There were 284 patients who met selection criteria. Thirteen patients (4.6%) died during hospitalization and 27 (9.5%) had ICU admission, 139 (48.9%) had LOS >2 days, and 75 (26.4%) had i.v. antibiotics >2 days. Multivariate analysis identified the following variables as independent predictors of adverse outcomes: mental status change, frequent UTIs, other nonurinary infections, abnormal temperature, tachycardia, hypotension, elevated BUN, hyperglycemia, elevated WBC, and relative neutrophilia. Regression models for adverse outcomes had sensitivities from 74.8% to 96.2% and specificities from 31.1% to 69.0%. In conclusion, this study defines high rates of morbidity for geriatric patients with UTIs and describes predictive variables that may help identify low-risk patients. These data may lay the foundation for determining specific guidelines for disposition of this high-risk patient population.

Alcohol and tobacco use in the elder emergency department patient: assessment of rates and medical care utilization

OBJECTIVES

To determine rates of alcohol and tobacco use among independent elder emergency department (ED) patients and assess the extent of health care use of this population.

METHODS

A convenience sample of independent elders (age > or =65 years) in an urban academic ED was enrolled. Patients were excluded if they were medically unstable or had a change in mental status. The Fagerstrom Test for Nicotine Dependence, and the Alcohol Use Disorders Identification Test (AUDIT) scales were used to measure tobacco and alcohol use. Subjects completed questionnaires about their health and use of the health care system. Data were analyzed by using t-tests to compare independent variables.

RESULTS

A total of 565 subjects completed the study. Of these, 296 (52.4%) were male and 269 (47.6%) were female; mean age was 77.1 years. Fifty-four (9.5%) were smokers, and 22 (3.9%) were nicotine-dependent by the Fagerstrom test (Fagerstrom+). Alcohol use was reported at least once monthly by 176 (31.2%) and twice monthly by 76 (13.5%) patients; 12 (2.1%) were alcohol-dependent by the AUDIT scale (AUDIT+). Two (0.35%) were both Fagerstrom+ and AUDIT+. Fagerstrom+ subjects visited a physician less often than Fagerstrom- subjects (3.9 vs. 4.6 annual visits, p < 0.0009). AUDIT+ subjects visited a primary care physician less (3.3 vs. 4.2 annual visits, p < 0.007) or "any" physician less (3.9 vs. 4.6 annual visits, p < 0.01) than AUDIT- subjects. AUDIT+ and Fagerstrom+ subjects did not differ from AUDIT- and Fagerstrom- subjects in number of annual ED visits, self-reported general health, physical symptoms (except nervousness, p < 0.004), comorbid illnesses, hospital admissions, and injuries requiring treatment.

CONCLUSIONS

Elder ED patients have low rates of nicotine and alcohol dependence. Nicotine- or alcohol-dependent elders use outpatient providers less often than nondependent elders but use EDs at the same rate and report similar health patterns.

ED utilization: the effect of changing demographics from 1992 to 2000

To explore factors contributing to increased emergency department (ED) utilization, this retrospective chart review compared ED visits for a 2-week period in both 1992 and 2000 at a rural, tertiary medical center. Total ED visits increased 455 between the periods (% increase = 28.6%), whereas county population increased 18,253 (% increase = 16.1%) (P < 0.005). Average age increased from 35.2 +/- 23.8 years to 40.1 +/- 23.6 years (95% confidence interval, difference of means, 3.34 to 6.45). Patients over 80 years increased by 83%, whereas those over 90 years increased 138%. The admission rate, increased from 21.9% to 25.6% (P < 0.005). Patients with Medicare as primary insurance increased from 17.9% to 23.6% (P < 0.005). Increased age of the population, increased acuity as shown by 4 different measurements, and limited access to primary care physicians all contributed to increased ED demand in this study.

Older adults in the emergency department: a systematic review of patterns of use, adverse outcomes, and effectiveness of interventions

STUDY OBJECTIVE

We sought to synthesize the literature on patterns of use of emergency services among older adults, risk factors associated with adverse health outcomes, and effectiveness of intervention strategies targeting this population.

METHODS

Relevant articles were identified by means of an English-language search of MEDLINE, HealthSTAR, CINAHL, Current Contents, and Cochrane Library databases from January 1985 to January 2001. This search was supplemented with literature from reference sections of the retrieved publications. A qualitative approach was used to synthesize the literature.

RESULTS

Compared with younger persons, older adults use emergency services at a higher rate, their visits have a greater level of urgency, they have longer stays in the emergency department, they are more likely to be admitted or to have repeat ED visits, and they experience higher rates of adverse health outcomes after discharge. The risk factors commonly associated with the negative outcomes are age, functional impairment, recent hospitalization or ED use, living alone, and lack of social support. Comprehensive geriatric screening and coordinated discharge planning initiatives designed to improve clinical outcomes in older emergency patients have provided inconclusive results.

CONCLUSION

Older ED patients have distinct patterns of service use and care needs. The current disease-oriented and episodic models of emergency care do not adequately respond to the complex care needs of frail older patients. More research is needed to determine the effectiveness of screening and intervention strategies targeting at-risk older ED patients.

Epidemiological profile of geriatric patients admitted to the emergency department of a university hospital localized in a rural area

The number of geriatric patients admitted to the accident and emergency department is growing. These patients also present increasing functional dependence and a large panel of associated diseases and associated problems. For the purpose of describing this phenomenon, we prospectively studied the epidemiology of patients 75 years and older entering the emergency department of a university hospital localized in a rural area. From January 1996 up to January 1997, 1298 patients aged 75 years or older were admitted to the emergency department. This age group represented 12.3% of all the patients admitted during the period. The gender distribution was almost equal: 56% were female and 44% male. Most of them (75%) were referred by their general practitioner although 15% came spontaneously. The most common complaints were, in decreasing order: general condition impairment (21.5%), dyspnoea (15%), falls and traumas (15%), abdominal problems (13%), thoracic pain (9%), syncope, dizziness (7%) and stroke (5.5%). Hospitalization was necessary in 69% of cases. Among the patients coming spontaneously a larger proportion (55%) were sent back home compared with only 25% of those referred by their general practitioner.

Emergency department utilization by noninstitutionalized elders

OBJECTIVES

To the best of the authors' knowledge, no nationally representative, population-based study has characterized the proportion of elders using the emergency department (ED) and factors associated with ED use by elders. This article describes the proportion of elder Medicare beneficiaries using the ED and identifies attributes associated with elder ED users as compared with nonusers.

METHODS

The 1993 Medicare Current Beneficiary Survey was used, a national, population-based, cross-sectional survey of Medicare beneficiaries linked with Medicare claims data. The study population was limited to 9,784 noninstitutionalized individuals aged 66 years or older. The Andersen model of health service utilization was used, which explains variation in ED use through a combination of predisposing (demographic and social), enabling (access to care), and need (comorbidity and health status) characteristics.

RESULTS

Eighteen percent of the sample used the ED at least once during 1993. Univariate analysis showed ED users were older; were less educated and lived alone; had lower income and higher Charlson Comorbidity Index scores; and were less satisfied with their ability to access care than nonusers (p < 0.01, chi-square). Logistic regression identified older age, less education, living alone, higher comorbidity scores, worse reported health, and increased difficulties with activities of daily living as factors associated with ED use (p < 0.05). Need characteristics predicted ED use with the greatest accuracy.

CONCLUSIONS

The proportion of elder ED users is slightly higher than previously reported among Medicare beneficiaries. Need (comorbidity and health status) characteristics predict ED utilization with the greatest accuracy.

Survey of directors of emergency departments in California on overcrowding

OBJECTIVE

To survey the directors of emergency departments in California on their opinions of the extent and factors associated with overcrowding in emergency departments.

METHODS

Surveys were mailed to a random sample of emergency department directors. Questions included estimated magnitude, frequency, causes, and effects of overcrowding.

RESULTS

Of 160 directors surveyed, 113 (71%) responded, and 109 (96%) reported overcrowding as a problem. All (n = 21) university or county hospital directors and most (n = 88 [96%]) private or community hospital directors reported overcrowding. The 4 private or community hospital directors reporting no overcrowding serve smaller communities with populations less than 250,000. Thirty-two directors (28%) reported daily overcrowding. The most cited causes were increasing patient acuity and volume, hospital bed shortage, laboratory delays, and nursing shortage. These putative causes were similar between university or county and private or community hospital directors, except for consultant delays, which were more prevalent in university or county hospital emergency departments.

CONCLUSIONS

Overcrowding is perceived to be a serious problem by emergency department directors. Many factors may contribute to overcrowding, and most are beyond the control of emergency departments.

The effect of the doctor-patient relationship on emergency department use among the elderly

OBJECTIVES

This study sought to determine the rate of emergency department use among the elderly and examined whether that use is reduced if the patient has a principal-care physician.

METHODS

The Health Care Financing Administration's National Claims History File was used to study emergency department use by Medicare patients older than 65 years in Washington State during 1994.

RESULTS

A total of 18.1% of patients had 1 or more emergency department visits during the study year; the rate increased with age and illness severity. Patients with principal-care physicians were much less likely to use the emergency department for every category of disease severity. After case mix, Medicaid eligibility, and rural/urban residence were controlled for, the odds ratio for having any emergency department visit was 0.47 for patients with a generalist principal-care physician and 0.58 for patients with a specialist principal-care physician.

CONCLUSIONS

The rate of emergency department use among the elderly is substantial, and most visits are for serious medical problems. The presence of a continuous relationship with a physician--regardless of specialty--may reduce emergency department use.

Adding medications in the emergency department: effect on knowledge of medications in older adults

INTRODUCTION

Older adults constitute 20% of the ED population. Of older patients discharged from the emergency department, 40% receive at least one new medication to add to their already complex medication regimen. The purpose of this study was to determine the effect of increasing medication complexity on knowledge of newly prescribed medications for older adults discharged from the emergency department.

METHODS

The complexity of self-administered medications after ED treatment was measured with the Medication Complexity Index to determine its potential influence on the patient's knowledge of medication. The Knowledge of Medication Subtest, a measure of the effectiveness of medication teaching, was administered by telephone interview 48 to 72 hours after ED discharge.

RESULTS

Sixty rural ED patients ranging in age from 60 to 98 years completed the study. Higher medication complexity after the addition of medications in the emergency department was associated with less knowledge of their medications (r = 0.37, P =. 004).

DISCUSSION

The increase in medication complexity that results from ED therapeutic intervention may decrease knowledge of medications. A heightened emphasis should be placed on effective medication teaching, counseling, and follow-up for older adult ED patients.

Inappropriate use of emergency medical services transport: comparison of provider and patient perspectives

OBJECTIVES

To determine the extent of inappropriate ambulance use from the perspectives of both emergency medical services (EMS) providers and patients utilizing EMS transport, assess level of agreement, and identify variables associated with inappropriate ambulance use.

METHODS

A prospective cross-sectional study was done of a consecutive sample of patients arriving by ambulance during the month of February 1997 at an urban university hospital ED. EMS providers and patients completed a survey with questions regarding their perceptions of whether the need for ambulance transport was an emergency or a nonemergency. Patient demographic information and availability of alternate means of transportation to the hospital were also evaluated.

RESULTS

Eight hundred eighty-seven patients were included in the study. EMS providers thought that 501 patient transports were appropriate and represented true emergencies, whereas 689 patients believed their medical problems were true emergencies. A significant number of patients (n=415, 47%) had access to alternative transportation to the hospital. Blunt traumatic injury and altered mental status were the most common reasons for EMS transport. Patient characteristics significantly associated with EMS provider perception of a true emergency were male gender, age >51 years, higher education, chest pain/cardiac complaints, shortness of breath/respiratory complaints, and Medicare insurance. Characteristics significantly associated with patients who perceived themselves to have true emergencies were black ethnicity, higher education, shortness of breath/respiratory complaints, and Medicare insurance. There was 75% agreement between EMS providers and patients on appropriateness of ambulance transport (kappa=0.84).

CONCLUSION

Inappropriate ambulance use is a significant problem from both EMS provider and patient perspectives. Certain patient characteristics are associated with a higher probability of appropriate and inappropriate uses of EMS transport. A large number of patients transported by ambulance have alternative means of transportation but elect not to use them.

Use of emergency departments by elder patients: a five-year follow-up study

OBJECTIVE

To compare the use of emergency medical care by elders in the United States in 1995 with that previously described for 1990.

METHODS

A computerized billing database of 88 EDs in 21 states was retrospectively reviewed for 1995, comparing elder and nonelder patients, estimating national use of emergency medical services by elders, and comparing the 1995 data with previously published results for 1990.

RESULTS

From 1990 to 1995, the number of ED visits in the United States increased from 92 million to 100 million. The number of visits made by patients aged 65 years or older increased from 13,639,400 (15%) to 15,666,300 (15.7%), but this increase did not reach statistical significance (p = 0.17). The admission rate for elder ED patients increased from 32% to 46% over the five-year interval (p<0.01). This represents more than 7 million hospital admissions for elder patients in 1995. The rate of intensive care unit (ICU) admission for elders decreased from 7% to 6% over the five-year interval (p = 0.56), compared with 1.3% for nonelder patients for both years. Thirty percent of elder ED patients arrived by ambulance in 1990, compared with 33% in 1995 (p = 0.02). Based on 1995 data, elders comprised 39% of patients arriving by ambulance [odds ratio (OR) 4.75, 95% confidence interval (CI) = 4.71 to 4.79], 43% of all admissions (OR 6.59, 95% CI = 6.54 to 6.64), and 47% of ICU admissions (OR 5.00, 95% CI = 4.91 to 5.09). The comparable ORs in 1990 were 4.4, 5.6, and 5.5, respectively.

CONCLUSIONS

From 1990 to 1995, the overall number of ED visits increased. The rate of increase was somewhat greater for elder patients. The use of ambulance services also disproportionately grew among elder patients, as did the rate of hospital admission. The overall rate of ICU admission was stable, but actually fell modestly for elder patients. Of these changes, only the increase in the rate of hospital admission for elders reached statistical significance.

Predictors of repeat emergency department visits by elders

OBJECTIVE

To determine which characteristics of older patients who use a hospital ED are associated with repeat visits during the 90 days following the index visit.

METHODS

The study was conducted in the ED of a 400-bed university-affiliated acute care community hospital in Montreal. Patients aged > or = 75 years who visited the ED between 08:00 and and 16:00 on a convenience sample of days over an 8-week period (July and August 1994) were assessed using a questionnaire, physical and cognitive status instruments, and a functional problem checklist. The hospital's administrative database was used to identify repeat visits during the 90 days following the ED visit. The representativeness of the sample was assessed by analyses of ED visits made by 4,466 persons aged > or = 65 years during a 12-month period (September 1993 to August 1994) using the hospital's administrative database.

RESULTS

256 patients aged > or = 75 years visited the ED during the study period and 167 were assessed. Of these, 54 (32%) were admitted to the hospital. Among the 113 patients released from the ED, 27 (24%) made repeat visits during the next 90 days. In univariate analyses, repeat visits were significantly associated with the number of functional problems, cognitive impairment, and previous ED visits. In multiple logistic regression, male gender, living alone, and number of functional problems were independent predictors of repeat visits. In the administrative data analyses, nighttime arrival to the ED for the index visit was significantly associated with repeat visits.

CONCLUSIONS

Self-reported risk factors can help to identify a group of elders likely to make repeated ED visits; the development of a screening instrument incorporating questions on these problems and implementation of appropriate interventions might improve these patients' quality of life and reduce the demand for further ED care in this age group.