Effects of a Medical Aid program on medical utilization patterns for low-income patients with affective disorder in Seoul

Mental illness has been increasing globally and its global burden of disease has reached a significant level, and urban dwellers have more chances of having worse mental health status due to high population density, isolated social networks. In Korea''s medical security system, Medical Aid (MA) program and National Health Insurance (NHI), patients covered by MA pay much smaller out-of-pocket payments for outpatient services because of exempt from hospitalization fees. However, as a result of focusing on improving access to medical services for the urban poor due to lower out-of-pocket payment, their healthcare costs have greatly increased, while their health management has thus far been inadequate. In light of the background, this study investigated the differences in patterns of medical utilization among affective disordered patients covered by the MA program and the NHI system respectively.Data used for this study were extracted from customized health information data from the National Health Insurance Service (NHIS). The data source used in this study, customized claims data from the NHIS, is census data, which strengthens the representativeness and reliability of the study results. A total of 6754 inpatients (MA: 3327 and NHI 20%: 3327) diagnosed with the affective disorder were retrieved by Propensity Scores Matching (PSM).The length of stay of MA beneficiaries was found to be longer than that of NHI enrollees. However, the rate of hospital emergency room visits by NHI enrollees was higher than that of MA beneficiaries.Overall, community-based interventions are required to prevent and treat mental health by providing primary medical care in the community, and linking with mental health centers. Such policies will ultimately improve the financial sustainability of medical security systems.     

Epidemiological features of infantile hypertrophic pyloric stenosis in Taiwan: a national study 1996-2004

Background and Aim: The incidence of infantile hypertrophic pyloric stenosis (IHPS) varies among different countries and is supposed to be lower in Asian countries than in Western countries. However, the incidence of IHPS in Taiwan has not been well investigated. Methods: The National Health Insurance (NHI) program was implemented in Taiwan in 1995 and covers most of the population (>99%). We used the NHI database to investigate the epidemiological features of IHPS in Taiwan and to compare the data with that of other countries. Results: We identified 962 new IHPS cases during the period from 1996 to 2004. The overall incidence of IHPS was 0.39 (0.34–0.50) cases per 1000 live births. The estimation was 0.39–0.59 per 1000 live births after adjustment for the misdiagnosis rate. The peak incidence (0.58 per 1000 live births) occurred in winter in 1999. Rates were consistently higher in male subjects. The 1‐year survival rate was not significantly different in the patients receiving pyloromyotomy in medical centers, regional hospitals, and district hospitals (P = 0.389). Conclusions: Taiwan had the second lowest incidence of IHPS reported in the medical literature. IHPS patients can be successfully treated in district and general hospitals with good prognosis.     

Physician and hospital characteristics related to length of stay for acute myocardial infarction patients: a 3-year population-based analysis.

BACKGROUND: The lack of studies on the simultaneous contributions of hospital and physician to the length of stay (LOS) for acute myocardial infarction (AMI) has hampered the development of hospital- and physician-level strategies by clinicians and policymakers. This study used 3 years of population-based data to examine the relationships of physician and hospital characteristics with LOS for AMI patients in Taiwan. METHODS AND RESULTS: Multiple regression analysis was carried out to explore the relationships, using the 2001-2003 National Health Insurance Research Database of the National Health Research Institute, Taiwan. The study samples were identified by a principal diagnosis of AMI (ICD-9-CM code 410), with a total of 19,907 eligible admissions. The mean LOS was 9.1 days. The results revealed that compared with district hospitals, the LOS was significantly longer in both medical centers and regional hospitals (both p<0.001). The LOS among patients attended by cardiologists was 28.0% shorter than those attended by physicians specializing in surgery, family medicine, or emergency medicine. CONCLUSIONS: The results of this study demonstrate that there are wide variations among the different types of physician and levels of hospital in the LOS for AMI patients, which highlights the importance of developing national treatment protocols for AMI in order to reduce variations in hospital and physician behaviors.     

A survey of the delayed discharge of elderly people from hospitals in an inner-London health district

Older people (aged 65+) are the main consumers for the services provided by the hospital sector in Britain. A concern often expressed by clinicians is the 'blocking' of acute beds by older people who cannot be discharged but who no longer need the facilities provided by an acute unit. To identify the number of beds blocked by the elderly in an inner London health district, a census of all wards was undertaken in the two district general hospitals within the health authority. Medical/nursing staff were first asked to identify all patients aged 65+ who they considered to be inappropriately placed on an acute unit. Standard demographic and medical data were collected as well as the reason why the patient could not be discharged. A total of 563 patients were enumerated, of whom 287 (51%) were aged 65+. According to medical/nursing staff 24% (68/287) of elderly patients were classed as inappropriately located. The definition of a 'bed blocker' was refined by relating to a length of stay of 1 month, which reduced the proportion of such elderly patients to 15%. Such patients were significantly more likely to be demented and incontinent. The study showed that comparatively few elderly patients were inappropriately occupying acute beds. The inappropriate use of acute beds is not a feature unique to elderly patients; younger clients may be similarly categorised. Furthermore bed blocking is not something patients actively choose to do; rather it reflects the failure of services to appropriately respond to the needs of such patients.     

Length of Stay and Costs for Asthma Patients by Hospital Characteristics—A Five-Year Population-Based Analysis

This study sets out to explore the relationship between hospital characteristics, asthma length of stay (LOS), and costs per discharge. The study adopts hospitalization data from the Taiwan National Health Insurance Research Database covering the period from 1997 to 2001. Study subjects were identified from the database by principal diagnosis of asthma or asthmatic bronchitis, with a total of 139,630 cases being included in the study. Multiple-regression analyses were performed to explore the relationship between LOS, costs per discharge and hospital characteristics, adjusting for age, gender, and discharge status of patients, as well as complications or comorbidities. The regression analyses showed that, compared with district hospitals, medical centers and regional hospitals have longer and more statistically significant LOS, as well as higher costs. Hospitals operating on a for-profit basis have shorter LOS and lower costs than public and not-for-profit hospitals. This study shows the existence of wide variations in LOS and costs per discharge for asthma hospitalizations, between the various types of hospitals in Taiwan.     

Length of Stay and Costs for Asthma Patients by Hospital Characteristics—A Five-Year Population-Based Analysis

This study sets out to explore the relationship between hospital characteristics, asthma length of stay (LOS), and costs per discharge. The study adopts hospitalization data from the Taiwan National Health Insurance Research Database covering the period from 1997 to 2001. Study subjects were identified from the database by principal diagnosis of asthma or asthmatic bronchitis, with a total of 139,630 cases being included in the study. Multiple-regression analyses were performed to explore the relationship between LOS, costs per discharge and hospital characteristics, adjusting for age, gender, and discharge status of patients, as well as complications or comorbidities. The regression analyses showed that, compared with district hospitals, medical centers and regional hospitals have longer and more statistically significant LOS, as well as higher costs. Hospitals operating on a for-profit basis have shorter LOS and lower costs than public and not-for-profit hospitals. This study shows the existence of wide variations in LOS and costs per discharge for asthma hospitalizations, between the various types of hospitals in Taiwan.     

Health care for older persons: a country profile-Korea

The Korean healthcare system is faced with a crisis caused by rapidly changing social values tending toward westernization, increasing insurance benefit requests for elder health care, financial instability of the National Health Insurance (NHI) program, and a lack of social infrastructure for the elderly. The demand for health care for the elderly has increased markedly, because of a rapidly aging population, growing female participation in the labor market, elevated expectations for health care, and a change in the pattern of medical conditions in the elderly from acute illness to chronic disability. NHI lacks the finances to meet the benefit request for long-term care (LTC). Only 0.39% of the elderly can be accommodated in LTC beds. Consequently, the chronically disabled elderly overflow to acute care beds in general hospitals, which places an undue burden on the already strained NHI system in terms of longer stays and higher cost of treatment in hospitals compared with care specific to the elderly in LTC facilities. It is clear that the Korean healthcare system does not have the facilities to meet such challenges and is in a state of disorder. Korea has failed to predict and prepare for population needs before they arise, including financing and the development of appropriate care models, particularly concerning the adequate provision of LTC. This paper advocates the necessity of international discussion of the prospects for developing health care for aging populations and encourages the sharing of differing national experiences concerning care for the elderly.     

Do subspecialists working outside of their specialty provide less efficient and lower-quality care to hospitalized patients than do primary care physicians?

BACKGROUND: Studies show that subspecialists can provide better quality care than primary care physicians when working within their subspecialty for patients with some medical conditions. However, many subspecialists care for patients outside of their chosen subspecialty. The present study compared the quality of care provided by subspecialists practicing outside of their specialty, general internists, and subspecialists practicing within their specialty. METHODS: The severity-adjusted mortality rate and the severity-adjusted length of stay were used as indexes of quality of care. Data from 5112 hospital admissions (301 different physicians) for community-acquired pneumonia, acute myocardial infarction, congestive heart failure, or upper gastrointestinal hemorrhage at 6 hospitals in the greater Cleveland, Ohio, area were used in this study. The data were severity adjusted with the CHOICE Severity of Illness System. RESULTS: Subspecialists working outside of their subspecialty cared for 25% of hospitalized patients. When comparing patients cared for by subspecialists practicing outside of their subspecialty, severity-adjusted lengths of stay were longer for patients with congestive heart failure (23% longer; 95% confidence interval [CI], 15%-32%), upper gastrointestinal hemorrhage (22% longer; 95% CI, 7%-39%), and community-acquired pneumonia (14% longer; 95% CI, 5%-24%) than for patients cared for by subspecialists practicing within their subspecialty. Patients also had a slightly higher hospital mortality rate when cared for by subspecialists practicing outside of their specialty than by subspecialists practicing within their subspecialty (mortality rate odds ratio, 1.46; P =.047). In addition, patients cared for by subspecialists practicing outside of their subspecialty had longer lengths of stay, and prolongations of stay were observed for patients with congestive heart failure (16% longer; 95% CI, 8%-26%), upper gastrointestinal hemorrhage (15% longer; 95% CI, 2%-30%), and community-acquired pneumonia (18% longer; 95% CI, 9%-28%) than patients cared for by general internists. CONCLUSIONS: Subspecialists commonly care for patients outside of their subspecialty, despite the fact that their patients may have longer lengths of stay than those cared for by subspecialists practicing within their specialty or by general internists. In addition, such patients may have slightly higher mortality rates than those cared for by subspecialists practicing within their subspecialty.     

Bed blocking by elderly patients in general-hospital wards.

A point prevalence survey, using a questionnaire, was performed in three general hospitals to investigate the problem of elderly patients blocking acute-hospital beds. A total of 1010 occupied general beds were surveyed and all patients, over the age of 60 years, who had been in hospital more than four weeks, and who, in the opinion of medical and nursing staff, were no longer in need of the facilities of a general hospital, were investigated. Forty-eight patients (4.8 per cent of the total) were found to be genuinely in bed inappropriate to their needs. Rehabilitation, together with assessment of these patients, appeared disorganized and lacked consistency, and decisions regarding suitable 'disposal' appeared to be made without sufficient consultation and conformed to no detectable pattern. The main reason for the continuing bed occupancy of the patients was the length of the waiting lists for alternative residential accommodation and the main single medical factor preventing discharge home or to a hostel was the problem of mobility. By interviewing staff and patients and scrutinizing the questionnaires, it was found that 23 patients (48 per cent) were only suitable for transfer to a long-stay hospital. Of these, however, 15 (31 per cent) could be placed in specialized accommodation if some degree of nursing care, at present not available, was provided.     

A cross-cultural comparison of critical care delivery: Japan and the United States

OBJECTIVE: To compare the utilization and outcomes of critical care services in a cohort of hospitals in the United States and Japan. DESIGN: Prospective data collection on 5,107 patients and detailed organizational characteristics from each of the participating Japanese study hospitals between 1993 and 1995, with comparisons made to prospectively collected data on the 17,440 patients included in the US APACHE (acute physiology and chronic health evaluation) III database. SETTING: Twenty-two Japanese and 40 US hospitals. PATIENTS: Consecutive, unselected patients from medical, surgical, and mixed medical/surgical ICUs. MEASUREMENTS: Severity of illness, predicted risk of in-hospital death, and ICU and hospital length of stay (LOS) were assessed using APACHE III. Japanese ICU directors completed a detailed survey describing their units. MAIN RESULTS: US and Japanese ICUs have a similar array of modalities available for care. Only 1.0% (range, 0.56 to 2.7%) of beds in Japanese hospitals were designated as ICUs. The organization of the Japanese and US ICUs varied by hospital, but Japanese ICUs were more likely to be organized to care for heterogeneous diagnostic populations. Sample case-mix differences reflect different disease prevalence. ICU utilization for women is significantly lower (35.5% vs 44.8% of patients) and there were relatively fewer patients > or = 85 years old in the Japanese ICU cohort (1.2% vs 4.6%), despite a higher per capita rate of individuals > or = 85 years old in Japan. The utilization of ICUs for patients at low risk of death significantly less in Japan (10.2%) than in the United States (12.9%). The APACHE III score stratified patient risk. Overall mortality was similar in both national samples after accounting for differences in hospital LOS, utilizing a model that was highly discriminating (receiver operating characteristic, 0.87) when applied to the Japanese sample. The application of a US-based mortality model to a Japanese sample overestimated mortality across all but the highest (> 90%) deciles of risk. Significant variation in expected performance was noted between hospitals. Risk-adjusted ICU LOS was not significantly longer in Japan; however, total hospital stay was nearly twice that found in the US hospitals, reflecting differences in hospital utilization philosophies. CONCLUSIONS: Similar high-technology critical care is available in both countries. Variations in ICU utilization reflect differences in case-mix and bed availability. Japanese ICU utilization by gender reflects differences in disease prevalence, whereas differences in utilization by age may reflect differences in cultural norms regarding the limits of care. Such differences provide context from which to assess the delivery of care across international borders. Miscalibration of predictive models applied to international data samples highlight the impact that differences in resource use and local practice cultures have on outcomes. Models may require modification in order to account for these differences. Nevertheless, with large databases, it is possible to assess critical care delivery systems between countries accounting for differences in case-mix, severity of illness, and cultural normative standards facilitating the design and management such systems.     

Clinical budgeting and drug management on long-stay geriatric wards

Over-prescribing on long-stay wards for the elderly is a common problem. A scheme of senior doctor surveillance of prescribing on long-stay wards in a district general hospital is described, which involved stopping all drugs except those considered essential. A reduction of over 50% in the number of drugs taken per patient, and a saving of 34% in drug costs was achieved, without detriment to patients' well-being. Increased drug utilization on some wards is considered to occur because of the ward sister's demand for patients to be given drugs such as sedatives and tranquilizers. Regular re-education of nursing and junior medical staff to reduce over-prescribing is recommended.     

Geriatrische Behandlung im Krankenhaus?

Multimorbidity and functional impairment in geriatric patients regularly necessitate a combination of acute medical care and functional therapy. In Germany, comprehensive geriatric care is usually provided in hospitals, but also in clinical rehabilitation units. Different payment systems (diagnosis related groups in hospitals, day-to-day charges in rehabilitation centers) have precipitated a discussion on the separation of the acute phase from the rehabilitative phase of the disease with medical issues prevailing in the former and functional training in the latter. In geriatric patients, however, medical treatment of acute and chronic diseases should be continuously combined with functional therapy from the beginning of the hospital stay (i. e. early rehabilitation). Thus, acute hospital treatment followed by rehabilitation in a different institution, a method frequently used with younger patients with single defined diagnoses, has shown to be disadvantageous in geriatric patients. Some federal states in Germany favor the concept of one-step comprehensive hospital care including rehabilitation. As discussed in the article in detail, this procedure is in full accordance with the German social law.     

Trends in Prolonged Hospitalizations in the United States from 2001 to 2012: A Longitudinal Cohort Study

Background

Health policy debate commonly focuses on frequently hospitalized patients, but less research has examined trends in long-stay patients, despite their high cost, effect on availability of hospital beds, and physical and financial implications for patients and hospitals.

Severity of illness in patients with systemic lupus erythematosus hospitalized at academic medical centers

OBJECTIVE: To compare the severity of illness of patients with systemic lupus erythematosus (SLE) between those hospitalized at academic medical centers and those hospitalized at community hospitals. METHODS: In this population based cross-sectional survey, data on all hospitalizations of patients with SLE in California, New York, and Pennsylvania in 2000 were obtained from discharge abstracts submitted by acute care hospitals to state health planning agencies. Patients hospitalized at one of 36 academic medical centers in these states (N = 2072) were compared to patients hospitalized at community hospitals (N = 9373). The primary measures of severity of illness were the SLE Comorbidity Index, a weighted index of SLE manifestations and comorbid medical conditions based on discharge diagnoses, and long lengths of stay, defined as stays that exceeded the 90th percentile of hospital stays in the same diagnosis-related group in the United States. RESULTS: Compared to patients at community hospitals, patients at academic medical centers had substantially higher scores on the SLE Comorbidity Index (odds ratio for each 1-point increase 1.27, 95% confidence interval 1.15-1.40, p < 0.0001) and were more likely to have long lengths of stay (OR 1.65, 95% CI 1.42-1.91, p < 0.0001). Patients at academic medical centers also had higher scores on the SLE Comorbidity Index (OR for each 1-point increase 1.16, 95% CI 1.07-1.27, p = 0.0002) and were more likely to have long lengths of stay (OR 1.27, 95% CI 1.08-1.49, p = 0.004) compared to patients at large (> or = 300 beds) community hospitals in the same metropolitan areas. Results for the SLE Comorbidity Index were similar in the subset of patients with SLE as the primary discharge diagnosis. CONCLUSION: Patients with SLE hospitalized at academic medical centers are generally more severely ill than those hospitalized at community hospitals, including large community hospitals in the same area.     

Future tuberculosis care in Japan

In Japan, the care of patients with tuberculosis has been mainly dependent on the state of hospital wards. The number of patients that have tuberculosis has steadily declined over the years, and we are now on the way to low prevalence state of tuberculosis. However there is a need for discussion about how future care for patients with tuberculosis should take place. The problems of present tuberculosis care system are as follows: (i) there is inefficiency and difficulty in maintaining the tuberculosis wards because of the declining number of patients and specialists; (ii) there are difficulties in treating complications such as renal insufficiency which requires blood dialysis, delivery, psychiatric diseases in tuberculosis beds; (iii) there is a high proportion of elderly patients that require substantial nursing care and long-term admission in the hospital; (iv) there is not only insufficient patient care but also financial support for patients with socioeconomic problems such as foreign-born worker or homelessness, (v) in addition to the medical care for patients of MDR-TB being insufficient, there are also inappropriate environment and amenities for long-term hospitalization. Moreover the public subsidy system for medical treatment requires patients to pay 5% of expense cost in the outpatient clinic. The following points should be discussed for the future tuberculosis care system: (i) general hospitals should take more part in caring for patients with complications and there should be a close cooperation among general hospitals, tuberculosis specialists and the administration; (ii) there should be a limited number of hospitals maintained for the integrated treatment of MDR-TB including surgical treatment and suitable circumstances for long-term hospital care. Additionally, there should be a system of detention for non-adherent patients or home isolation for adherent patient; (iii) there should be reinforcement of public commitment for patients with socioeconomic problems or MDR patients such as public subsidized full coverage of medical expense, free treatment in regional health centers     

The selection of acute medical admissions for a short-stay unit

Objective of this study is to evaluate the selection of patients to be admitted to a hospital medical short-stay unit (SSU) where acute medical admissions with a predicted length of stay of between 24 and 72 h are managed. This is a retrospective observational study evaluating outcomes of all admissions to the medical SSU between January 2005 and December 2008. Factors that influence inappropriate allocation of patients to the SSU or alternative longer stay medical units were evaluated. Length of stay (LOS), mortality, Charlson score, admission to intensive care unit (ICU) (from the SSU), discharge diagnosis, and 7-day readmission rate were analysed. Over 4 years, 45% of the general medical inpatient take, 9,125 admission episodes, were managed by the medical SSU. On an average, 72% of these admissions to the SSU stayed fewer than 72 h. After excluding in-hospital deaths, there were 8,381 admissions to the general medical unit discharged within 72 h, and 77% of these were managed by the SSU during the study period. Inappropriate admissions to the SSU (LOS more than 72 h) tended to be older patients with more complex medical comorbidities. Other factors contributing to prolonged stay in the SSU included weekend admissions, and transfers to the ICU. The 7-day readmission rate was low at 3%; the all-cause hospital mortality for patients admitted to the medical SSU was 2% despite a 32% increase in workload in the medical SSU over these 4 years. In the context of fixed resources and a steeply increasing patient workload, a large proportion of general medical patients can be managed in a medical SSU with the majority being discharged home within 72 h while keeping all-cause in-hospital mortality and readmission rates low. More accurate identification of appropriate patients on admission by using a physiological clinical score and addressing operational issues particularly on weekends could lead to a more efficient SSU.     

Predicting length of stay of older patients with exacerbated chronic obstructive pulmonary disease

Our study objective was to identify factors predicting length of hospital stay of older patients with exacerbated chronic obstructive pulmonary disease (COPD) through a multicenter, cross-sectional, retrospective study. We examined 3789 patients aged 74.3+/-11.1 years (mean+/-SD), 66.1% males, consecutively hospitalized in 32 wards of General Medicine and 31 of Geriatrics in acute care hospitals for exacerbated COPD in 10 bimonthly periods between 1988 and 1997. On admission, patients underwent a structured assessment of demographic data, nutritional status, cognitive and physical functions, comorbidity, and pharmacological therapy in the two weeks prior to admission. Patients were grouped according to whether their length of stay exceeded or not the 75th percentile of stay distribution in each bimonthly period. Variables univariately distinguishing groups were entered into a logistic regression analysis having long-stay as the dependent variable. Living alone (Odds Ratio 1.33, 95% Confidence Limits 1.03-1.70), use of more than 3 drugs prior to admission (OR 1.29, CL 1.09-1.51), use of drugs with respiratory depressant properties prior to admission (OR 1.24, CL 1.05-1.46), and the presence of more than 3 comorbid diseases (OR 1.88, CL 1.61-2.19) were independent correlates of long-stay. Age did not predict length of stay. In conclusion, selected health outcomes and indicators of disease severity, but not age, target COPD patients at risk of long-stay. Research is needed to verify whether these data can help program interventions aimed at shortening length of stay and, thus, at reducing annual hospitalization costs of the elderly.     

Urban-rural differences in the quality of care for medicare patients with acute myocardial infarction

BACKGROUND: There are urban-rural differences in health care utilization in Kansas. This study was conducted to determine if similar differences exist in the quality of inpatient care provided for patients with acute myocardial infarction (AMI). METHODS: All acute care hospitals in the state were stratified into 12 urban, 31 semirural, and 76 rural hospitals according to their location. Data from medical records of 2521 Medicare patients 65 years and older who had survived AMI and were discharged alive from hospitals during an 8-month period in 1994/1995 were abstracted. The measures of the quality of care (quality indicators [QIs]) were the use of aspirin (during hospital stay and at discharge) and the administration of beta-blockers, intravenous (IV) nitroglycerin, heparin, and reperfusion by thrombolytic therapy or primary angioplasty. RESULTS: A significantly higher proportion of ideal candidates for the use of aspirin during hospital stay and at discharge, heparin, and IV nitroglycerin received these medications in urban hospitals, and a lower proportion of similar patients received these medications in rural hospitals compared with the patients in semirural hospitals (P<.001). Similar trends in each of the 6 QIs were observed for less than ideal patients (P<.05). Patient age was associated with a relatively poor quality of care in terms of the 6 QIs. Except for the administration of IV nitroglycerine to less than ideal patients, age adjustments did not change the observed urban-rural differences in the QI measures. CONCLUSION: Relatively poor quality of care for patients with AMI was provided by rural hospitals where greater opportunity for improvement exists.     

Resource utilization in treatment of acute myocardial infarction: staff-model health maintenance organization versus fee-for-service hospitals

Objectives. This study sought to compare the use of invasive procedures and length of stay for patients admitted with acute myocardial infarction to health maintenance organization (HMO) and fee-for-service hospitals.Background. The HMOs have reduced costs compared with fee-for-service systems by reducing discretionary admissions and decreasing hospital length of stay. It has not been established whether staff-model HMO hospitals also reduce the rate of procedure utilization.Methods. Using data from a retrospective cohort, we performed univariate and multivariate comparisons of the use of cardiac procedures, length of stay and hospital mortality in 998 patients admitted to two staff-model HMO hospitals and 7,036 patients admitted to 13 fee-for-service hospitals between January 1988 and December 1992.Results. The odds of undergoing coronary angiography were 1.5 times as great for patients admitted to fee-for-service hospitals than for those admitted to HMO hospitals (odds ratio 1.5, 95% confidence interval [CI] 1.3 to 1.9). Similarly, the odds of undergoing coronary revascularization were two times greater in fee-for-service hospitals (odds ratio 2.0, 95% Cl 1.6 to 2.5). However, higher utilization was strongly associated with the greater availability of on-site cardiac catheterization facilities in fee-for-service hospitals. The length of hospital stay, by contrast, was ∼1 day shorter in the fee-for-service cohort (7.3 vs. 8.0 days, p < 0.05).Conclusions. Physicians in staff-model HMO hospitals use fewer invasive procedures and longer lengths of stay to treat patients with acute myocardial infarction than physicians in fee-for-service hospitals. This finding, however, appears to be associated with the lack of on-site catheterization facilities at HMO hospitals.