The effect of utilization review on hospital use and expenditures: a review of the literature and an update on recent findings

Overutilization, overutilized

Overutilization is commonly blamed for escalating costs, compromising quality, and limiting access to the US health care system. Recent estimates suggest that nearly one-third of health care spending in the United States is a result of unnecessary care. Despite the surge of exposés that purport to uncover this "new" problem, narratives about overutilization have been circulating in health policy debates since the beginnings of the health insurance industry. This article traces how the term overutilization has spread in popularity from a relatively small community of mid-twentieth-century insurance experts to economists, physicians, epidemiologists, and eventually the news media of the early twenty-first century. A quick glimpse at the history of the term reveals that there has been constant disagreement and debate over the meaning and impact of overutilization. Moreover, the term has been put to very different uses, from keeping socialism at bay to preserving the fiscal integrity of Medicare to protecting the health of patients. The overutilization narrative, seductive in its promise of cutting costs without sacrificing access to quality care, too often drowns out other difficult conversations about social welfare, health equity, prices, and universal coverage.

Fact and fiction: debunking myths in the US healthcare system

The United States has the most expensive and complex healthcare system in the world. Despite the magnitude of funds spent on the system, Americans do not achieve the high standards of health seen in other developed countries. The current model of health insurance has failed to deliver efficient and effective healthcare. The administrative costs and lack of buying power that arise out of the existing multipayer system are at the root of the problem. The current system also directly contributes to the rising number of uninsured and underinsured Americans. This lack of insurance leads to poorer health outcomes, and a significant amount of money is lost into the system by paying for these complications. Experience from other countries suggests that tangible improvements can occur with conversion to a single-payer system. However, previous efforts at reform have stalled. There are many myths commonly held true by both patients and physicians. This inscrutability of the US healthcare system may be the major deterrent to its improvement. A discussion of these myths can lead to increased awareness of the inequality of our healthcare system and the possibilities for improvement.

Improving Quality Through Identifying Inappropriate Care: The Use of Guideline-Based Utilization Review Protocols in the Washington State Workers’ Compensation System

Utilization review (UR) is widely instituted to ensure that medical treatment is clinically necessary and appropriate. UR programs have been criticized for their failure to promote quality and for relying on proprietary review criteria that are rarely subject to external, independent evaluation or validation. In fashioning its UR program for workers' compensation, the Washington State Department of Labor and Industries sought to address these shortcomings. Working collaboratively with the state medical association, the Department of Labor and Industries developed treatment guidelines and then used these guidelines to formulate review criteria for UR. From 1993 through 1998, 100,005 UR reviews were conducted, half of which used the guideline-based review criteria. We analyzed these reviews to examine the patterns of denied requests. The overall denial rate for the guideline-based reviews was 7.3%. The highest denial rates were for thoracic outlet syndrome surgery (19.1%) and lumbar fusion (17.7%). The use of guideline-based UR protocols may improve the effectiveness of UR as a tool to identify potentially inappropriate care.

Physician awareness and self-reported use of local and national guidelines for community-acquired pneumonia

OBJECTIVES

To assess physician awareness and reported use of medical guidelines for community-acquired pneumonia (CAP), and to identify factors associated with variations in awareness and use of these guidelines.

DESIGN

A questionnaire was administered during the preintervention phase of a randomized clinical trial of a pneumonia guideline implementation strategy.

PARTICIPANTS

Three hundred and fifty-two physicians who managed CAP patients at 7 Pittsburgh, PA hospitals completed the questionnaire. Physician and practice setting characteristics, and physician awareness and reported use of national American Thoracic Society (ATS) and local (hospital-developed) guidelines for CAP were assessed.

RESULTS

Overall, 48% reported being influenced by ATS guidelines and 20% reported using these guidelines; 48% were uncertain whether a local pneumonia guideline existed. Only 28% of physicians who knew a local guideline existed reported frequently using the guideline. Use of national ATS guidelines was independently associated with practice as an infectious disease or pulmonary medicine specialist, nonpatient care-related professional activities, and intellect personality score. Use of local guidelines was independently negatively associated with practice as an infectious disease or pulmonary medicine specialist, and positively associated with positive attitudes toward practice guidelines.

CONCLUSIONS

Results indicate low levels of awareness and use of guidelines for the management of CAP. Key indicators (e.g., medical specialty, fewer clinical duties, and positive attitudes about guidelines) were associated with greater use of national and local guidelines. If replicated with data on actual physician management practices, more effective guideline implementation strategies will be necessary to encourage compliance with practice guidelines for the management of CAP.

From physician to consumer: the effectiveness of strategies to manage health care utilization

Many strategies are commonly used to influence physician behavior in managed care organizations. This review examines the effectiveness of three mechanisms to influence physician behavior: financial incentives directed at providers or patients, policies/procedures for managing care, and the selection/education of both providers and patients. The authors reach three conclusions. First, all health care systems use financial incentives, but these mechanisms are shifting away from financial incentives directed at the physician to those directed at the consumer. Second, heavily procedural strategies such as utilization review and gatekeeping show some evidence of effectiveness but are highly unpopular due to their restrictions on physician and patient choice. Third, a future system built on consumer choice is contradicted by mechanisms that rely solely on narrow networks of providers or the education of physicians. If patients become the new locus of decision making in health care, provider-focused mechanisms to influence physician behavior will not disappear but are likely to decline in importance.

Utilization management: issues, effects, and future prospects

Utilization management encompasses a diverse set of activities designed to influence the use of health care services and thereby constrain health care resource consumption. Utilization management, which has become one of the most widely used cost-containment approaches, has engendered debate and controversy. Physicians have been outspoken critics of utilization management because it has limited their clinical autonomy and has contributed to an intolerable administrative burden. Insurance carriers, managed care plans, and third-party payers have defended the use of utilization management as an imperfect-but necessary-practice that is needed to reduce consumption of unnecessary or inappropriate health care services. This review examines the operation and effects of three widely used utilization management procedures: prospective utilization review, case management, and physician gatekeeping programs. In addition, it explores the future role of utilization management in the health care system and outlines a set of principles that we believe should be used to guide the development of utilization management strategies in the future.

Early discharge following abdominal aortic aneurysm repair: Impact on patients and caregivers

Although early discharge is common place, little is known about its impact after abdominal aortic aneurysm (AAA) surgery. We sought to prospectively describe patient outcomes and caregiving experience after early discharge following elective AAA repair using a standard or endovascular grafting system (EGS) procedure. Fifty-one patients (Standard, n=25; EGS, n=26) completed questionnaires on symptoms and health-related quality of life (HRQoL) while hospitalized and 1, 4, and 8 weeks after discharge. Data were also obtained from caregivers. HRQoL decreased at Week 1 in both groups but returned to near baseline by Week 8. Standard AAA patients experienced more symptoms and activity limitations, but these were concentrated in Week 1. Most caregivers were positive about caregiving and required no additional resources. Findings suggest that most patients who undergo early discharge following elective AAA surgery experience few problems. Those problems that occur concentrate in the week following discharge, suggesting the need for closer monitoring at this time.

Gatekeepers and sentinels. Their consolidated effects on inpatient medical care

Evaluations assessing precertification by nurse gatekeepers and onsite monitoring by nurse sentinels report inconclusive unique effects of these programs on the utilization, expense, and appropriateness of inpatient medical care. By applying the fixed- and random-effects paradigm of meta-analysis, this article consolidates the results of all relevant quasi-experiments conducted by an evaluation group of a large private insurer from 1986 to 1990. It determines the difference in effect between the target and comparison groups, reports this effect and its statistical range, and determines the pooled effect and its range. The random effects indicate that precertification will reduce admissions, and onsite, concurrent review will reduce length of stay, bed days, and inpatient ancillary expense. The precertification and onsite programs may reduce negative iatrogenic effects, thereby enhancing the patients' well-being. If applied to privately insured populations who are still served on a fee-for-service basis, the gatekeeper and sentinel effects of these programs may reduce utilization and expense; however, inference of these results to Medicare fee-for-service care remains problematical.

Impact of Oregon's priority list on Medicaid beneficiaries

Since Oregon's controversial priority list was implemented in 1994, there has been only anecdotal evidence available on its possible impact on Medicaid beneficiaries. The authors surveyed over 1,400 beneficiaries to determine how often a service was denied because it was below the line, what kinds of services these represent, and any resulting health impact. About one third of all respondents reported that they had needed a service that Medicaid would not cover; in 38 percent of these cases, the reason was that the service was below the line. Frequently mentioned services included hernia repair, chiropractic treatment, dental splints, and newborn circumcision. About half of the respondents received the service anyway, often by paying for it themselves. Of those unsuccessful in getting the service, many reported that their health had worsened as a result. However, there was no evidence that getting (or not getting) the service had a causal impact on health status.

Effects of health care cost-containment programs on patterns of care and readmissions among children and adolescents

OBJECTIVES

This study examined the effects of a utilization management program on patterns of medical care among children and adolescents.

METHODS

From 1989 through 1993, the program conducted 8568 reviews of pediatric patients, ranging in age from birth to 18 years. The program used preadmission and concurrent review procedures to review and certify patients' need for care. This study used multivariate analyses to assess changes in the number of days of inpatient care approved by the program and to determine whether limitations imposed on length of stay affected the risk of 60-day readmission.

RESULTS

Concurrent review reduced the number of requested days of inpatient care by 3.2 days per patient. Low-birthweight infants and adolescent patients with depression or alcohol or drug dependence accounted for a disproportionate share of the reduction. Patients classified as admitted for medical or mental health care and whose stay was restricted by concurrent review were more likely (P < .05) to be readmitted within 60 days after discharge.

CONCLUSIONS

By limiting care through its review procedures, the utilization management program decreased inpatient resource consumption but also increased the risk of readmission for some patients. Continued investigation should be conducted of the effects of cost-containment programs on the quality of care given to children and adolescents, especially in the area of mental health.

Controlling workers' compensation medical care use and costs through utilization management

Little is known about the performance of utilization management (UM) programs, which are now widely used within the workers' compensation system to contain medical costs and improve quality. UM programs focus largely on hospital care and rely on preadmission and concurrent reviews to authorize hospital admissions and continued stays. We obtained data from a large UM program representing a national sample of 9319 workers' compensation patients whose medical care was reviewed between 1991 and 1993. We analyzed these data to determine the denial rate for hospital admission and outpatient surgery and the frequency of length-of-stay restrictions among hospitalized patients. The denial rate was approximately 2% to 3% overall, but many of the denials were later reversed. On average, the UM program reduced the length of stay by 1.9 days relative to the number of days of care requested. The estimated gross cost savings resulting from reduced hospitalization time and decreased outpatient care was approximately $5 million. UM programs may offer a viable approach to cost containment within the workers' compensation system. Their value as a tool to improve the quality of care for workers' compensation patients remains to be demonstrated.

The impact of private utilization management on psychiatric care: a review of the literature

Psychiatric care in the United States is increasingly practiced subject to some form of utilization management (UM) by third parties. This paper reviews recent studies of UM in the privately insured mental health sector, and finds some limited evidence that UM reduces utilization and costs to the payer. Less is known about UM's effect on mental health outcomes, or its financial impacts on patients, providers, and society. Implications concerning the regulation of UM are discussed, and suggestions are made for future research on the impact of UM.

The impact of preadmission approval and continued stay review on hospital stay and outcome among children and adolescents

Managed care has emerged as the centerpiece of the health care industry's efforts to control costs and ensure appropriate use of hospital services. This study assesses the impact of managed care by preadmission approval and/or continued stay review on length of psychiatric hospitalization and clinical outcome of children and adolescents. The sample included 277 cases hospitalized in nine psychiatric specialty hospitals in 1990. Demographic and clinical characteristics, hospital ownership type, and preadmission approval or continued stay review were used as independent variables in a multiple regression model to predict length of stay and clinical outcome. Results indicate that the model accounted for 27% of the variance in length of stay. Previous psychiatric hospitalization and for-profit hospital status predicted longer hospitalization. Clinical outcome was not significantly predicted by the model. Managed care did not predict either length of stay or clinical outcome. Implications for health care reform are discussed.

Effects of utilization management on patterns of hospital care among privately insured adult patients

OBJECTIVES

This study examined the effects of utilization management review activities on patterns of hospital care among a sample of adult patients insured through a managed fee-for-service plan.

METHODS

The study was a retrospective analysis of insurance administrative data representing a case series of patients for whom utilization management review was performed. Two review activities were analyzed: pre-admission review and concurrent (continued stay) review. Patients were 49,654 privately insured adult patients reviewed for care between January 1989 and December 1993. Review outcomes included inpatient or outpatient care denied, site of treatment shifted (from inpatient to outpatient), or reduction in requested hospital days (total days requested - total days approved).

RESULTS

Few patients (<1%) were denied care at time of admission or were required to obtain outpatient instead of inpatient care. More common was action taken to limit length of stay by concurrent review, which accounted for 83% of the total reduction (25,197 requested days) in inpatient care. Utilization management became more restrictive with time: the number of days approved declined by 15% to 50% from 1990 to 1993, depending on the type of admission. Utilization management was most forceful in restricting care for mental health patients, who represented 5.7% of the study population but accounted for 54.7% of the total reduction in requested days.

CONCLUSIONS

The utilization management program appeared to limit hospital care by managing length of stay once patients were admitted. The effects of restricting length of stay in this manner on quality and health outcomes should be investigated.

Risk, motives, and styles of utilization review: a cross-condition comparison

In the United States various forms of managed care have been introduced to control the use of expensive medical services. One of the most prominent involves utilization review of hospital admissions. While reviewing the appropriateness of inpatient treatment is appealing in principle, its application is made difficult by clinical uncertainty. Managed care plans develop and implement review criteria often without the guidance of clear clinical norms of treatment. Under these conditions, we suggest that utilization review organizations (UROs) can be expected to develop "styles" of review that respond to clinical uncertainty, influenced by their experience, professional orientation, and financial incentives. Two review styles are explored in this paper: standardization, where the URO reduces the variance in clinical practices by eliminating those practices that deviate from professional norms and stringency, whereby the URO shifts the distribution of clinical practice as it tries to change the professional norms of practice. Data from a 1992-1993 national survey of utilization review organizations are used to test whether UROs have review styles that systematically respond to organizational attributes, economic pressures, and clinical uncertainty associated with three medical conditions: cardiac catheterization, low back pain, and adolescent depression. UROs were found to adopt more stringent review strategies for conditions with weaker norms of appropriate treatment. Financial incentives and organizational experience are positively related to greater stringency. Standardization responds to professional orientation and organizational experience. Variation in the review styles of UROs has implications for the resulting distribution of clinical practices as well as the equity of access to medical care.

A randomized controlled trial of a drug use review intervention for sedative hypnotic medications

OBJECTIVES

Drug use review is used by both the public and private sector to influence prescribing behavior and patient drug use. Past interventions mailed to prescribers have had mixed results. The objective was to evaluate the effect of a one-time, mailed intervention on subsequent use of sedative hypnotic medication.

METHODS

An experimental design was used. The intervention contained guidelines for the use of sedative hypnotics, a prescriber profile detailing sedative hypnotic prescribing, and a patient profile. Clustering of patients and their shared prescribers was done to avoid contamination bias and statistical problems associated with a lack of independence of observations. Subjects were 189 Washington State Medicaid recipients who had received at least one tablet per day of a sedative hypnotic medication for 1 year and their prescribing physicians or (when information about the physician was lacking) the dispensing pharmacy.

RESULTS

A significant reduction in the use of targeted sedative hypnotic medications was measured in the intervention group (-27.6%) versus the control group (-8.5%). In the intervention group, 9.4% of patients began a new prescription for a benzodiazepine not targeted by the drug use review, whereas no control patients had new use of nontarget benzodiazepines.

CONCLUSIONS

The intervention achieved a statistically significant decrease in targeted drug use, and the amount of reduction is likely to have decreased the risk of fractures associated with benzodiazepine use. This study adds to the recent evidence that mailed drug use review interventions can have a desirable impact on patient drug use.

Do treatment restrictions imposed by utilization management increase the likelihood of readmission for psychiatric patients?

OBJECTIVES

The use of utilization management as a cost-containment strategy has led to debate and controversy within the field of mental health. Little is currently known about how this cost-containment approach affects patient care or quality. The aim of this investigation was to determine whether treatment restrictions imposed on privately insured psychiatric patients by a utilization management program affected the likelihood of readmission.

METHODS

The utilization management program included three review activities: preadmission certification, concurrent review, and case management. During a 5-year period (1989-1993), 3,073 inpatient reviews were performed on 2,443 privately insured psychiatric patients. Using logistic regression, restrictions imposed by utilization management on length-of-stay in relation to 60-day readmission rates were investigated.

RESULTS

The most common diagnoses among the psychiatric patients whose care was reviewed were alcohol dependence (22.9%), recurrent depression (22.5%), and single-event depression (20.8%). On average, 22.4 days of inpatient psychiatric treatment was requested through the review procedures, and 15.5 days of care were approved by the utilization management program. Of the 2,443 patients reviewed, 7.9% had a readmission within 60 days of their initial admission. Patients whose length-of-stay was restricted by utilization management were more likely to be readmitted. For each day that the requested length-of-stay was reduced, the adjusted odds of readmission within 60 days increased by 3.1% (P = 0.004).

CONCLUSIONS

The utilization management program restricted access to inpatient psychiatric care by limiting length of stay. Although this approach may promote cost containment, it also appears to increase the risk of early readmission. Continuing attention should be paid to investigating the effects on quality of utilization management programs aimed at containing mental health costs.

Does dissatisfaction with access to specialists affect the desire to leave a managed care plan?

Frequent changes in health plan enrollment may lead to discontinuity of care and compromise quality. Using multiple logistic regression, we investigated how four dimensions of patient satisfaction were associated with the desire to disenroll from a managed care plan. A total of 17,196 enrollees from a large health plan in California responded to a survey regarding their satisfaction with care and desire to disenroll from the plan. Nineteen percent stated that they wanted to change from the plan. Dissatisfaction with access to specialty care and convenience of care produced the highest calculated relative risks of desire to leave the plan [relative risk ERR] = 2.7 and 2.6, respectively), while dissatisfaction with the quality of care and with hospital care produced lower relative risks (1.8 and 1.5, respectively). Because limiting direct access to specialists is a cardinal feature of most managed care organizations, managed care organizations may need to reexamine their approaches to the specialty care referral process.

Ethical and legal implications of managed care

This article addresses several ethical, regulatory, and legal issues in managed care with attention to recent court cases that focus on physicians' responsibility, fiduciary duty, and the impact that these legal decisions have on physicians practicing in a managed care environment. Discussion of the impact of changes in the control of decision-making processes for physicians, the use of managed care protocols, restriction of resources, and gatekeeping systems are addressed as are the specific duties and obligations of physicians to their patients.

Impact of a worker's compensation practice guideline on lumbar spine fusion in Washington State

OBJECTIVES

In the face of escalating medical costs for injured workers, the Washington State Department of Labor and Industries (L&I), which pays for most workers' compensation costs in the state, established guidelines for elective lumbar fusion as part of its inpatient utilization review program. The guidelines were tied to reimbursement strictures. The authors attempt to assess the effects of these guidelines, which were introduced in November 1988, upon subsequent L&I fusion procedures.

METHODS

Discharge data from the Comprehensive Hospital Abstract Reporting System and algorithms using International Classification of Diseases, Version 9, Clinical Modification diagnosis and procedure codes were used to identify lumbar surgical cases. Population estimates were from the 1990 US Census Bureau.

RESULTS

During the period of years 1987 through 1992, the lumbar fusion rate for the state showed a 26% decline compared with a 3% decrease for all lumbar operations. After November 1988, when the guidelines went into effect, the state fusion rate declined 33%, whereas rates for nonfusion operations essentially were unchanged. The sharpest decline corresponded in time to implementation of the guidelines. Prior to the initiation of L&I guidelines, the proportion of fusions among L&I patients was higher than among non-L&I patients. The opposite was true by the end of 1992, and the L&I proportion decreased more rapidly than the non-L&I proportion. Time series analysis revealed that both the decline in Washington state lumbar fusion rates and the decline in the proportion of lumbar fusion among L&I patients were statistically significant.

CONCLUSIONS

The data suggest that the L&I lumbar fusion surgery criteria and reimbursement standards implemented in 1988 contributed to a decline in rates of performing that procedure. The utilization review aspect of the guidelines as well as the process of involving surgeons in the preparation and dissemination of guidelines also may have been contributory.

Results of a computerized screening of stroke patients for unjustified hospital stay

BACKGROUND AND PURPOSE

Effective methods to monitor length of stay can help reduce unnecessary hospital stay without adversely affecting the quality of care. In this study a clinical algorithm for assessing unjustified hospital stay in stroke patients was computerized and tested.

METHODS

An algorithm was developed by the authors to estimate the number of medically justified and unjustified hospital days for patients admitted with a primary diagnosis of ischemic stroke. Data for the algorithm were obtained from 177 stroke patients from an acute-care teaching hospital. The performance of the algorithm was evaluated on a subset of 46 patients by comparing the number of medically unjustified hospital days determined by the algorithm with the consensus determination of two neurologists.

RESULTS

The algorithm classified 68% of the 177 patients as having some unjustified hospital days and 41% of all hospital days as unjustified. With the neurologists as the gold standard, the sensitivity of the algorithm was .89 and the specificity was .91. The correlation between the number of unjustified days determined by the algorithm and the neurologists was .76.

CONCLUSIONS

There is considerable unjustified length of stay for stroke patients. Physicians can develop simple clinical algorithms for detecting unjustified hospital stay in stroke patients that provide a reasonable approximation of complex clinical judgment.

Evaluation of a hospital-based utilization management program

The objective of this study was to evaluate the impact of a utilization management (UM) program designed to decrease inappropriate use of acute care hospital beds while maintaining quality of care. The measure used to define appropriateness was the ISD-A, a diagnosis-independent measurement tool which relies on severity of illness and intensity of service criteria. The outcome measures for the study included appropriate admission to hospital and continued days of stay in hospital, 30-day readmission rates and physician perceptions of the impact of the intervention on quality of care, access to services and patient discharge patterns. The sample frame for the study included two control and two intervention community hospitals, involving 1,800 patient charts. Readmission rates were determined by analyzing all separations from medical services (N = 42,014) in the two experimental and two control hospitals. All physicians with admitting privileges (N = 312) at the intervention hospitals were surveyed; obstetricians, pediatricians, and psychiatrists were excluded from the survey. The results of the study demonstrated that the proportion of inappropriate admissions did not decrease significantly in any of the hospitals, but there were significant decreases in inappropriate continued stay in the intervention hospitals (p < 0.05). Both intervention and one of the control hospitals had lower 30-day readmission rates in the "after" period than in the "before" period (p < 0.05). Eighty-six percent believed that there had been no adverse impact on access to care and, although 25% thought the program may have led to premature discharge, this was not supported by the readmission data.

Overutilization of acute-care beds in Veterans Affairs hospitals

The authors tested the hypothesis that the Department of Veterans Affairs (VA) hospitals would have substantial overutilization of acute care beds and services because of policies that emphasize inpatient care over ambulatory care. Reviewers from 24 randomly selected VA hospitals applied the InterQual ISD* (Intensity, Severity, Discharge) criteria for appropriateness concurrently to a random sample of 2,432 admissions to acute medical, surgical, and psychiatry services. Reliability of hospital reviewers in applying the ISD* criteria was tested by comparing their reviews with those of a small group of expert reviewers. Validity of the ISD* criteria was tested by comparing the assessments of master reviewers with the implicit judgments of panels of nine physicians. The physician panels validated the ISD* admission criteria for medicine and surgery (74% agreement with master reviewers, kappa > 0.4), whereas the psychiatry criteria were not validated (66% agreement, kappa 0.29). Hospital reviewers reliably used all three criteria sets (> 83% agreement with master reviewers, kappa > 0.6). Rates of nonacute admissions to acute medical and surgical services were > 38% as determined by the hospital and master reviewers and by the physician panels. Nonacute rates of continued stay were > 32% for both medicine and surgery services. Similar rates of nonacute admissions and continued stay were found for all 24 hospitals. Reasons for nonacute admissions and continued stay included lack of an ambulatory care alternative, conservative physician practices, delays in discharge planning, and social factors such as homelessness and long travel distances to the hospital. Using criteria that the authors showed to be reliable and valid, substantial overutilization of acute medicine and surgical beds was found in a representative sample of VA hospitals. Correcting this situation will require changes in physician practice patterns, development of ambulatory care alternatives to inpatient care, and modification of current VA policies determining eligibility for care.

Effect of utilization review in a fee-for-service health insurance plan

BACKGROUND

Although utilization review is widely used to control health care costs, its effect on patterns of health care is uncertain.

METHODS

In 1989, New York City and its unions temporarily replaced actual utilization review with sham review for half the participants in the city's fee-for-service health insurance plan. We compared the health services provided to 3702 enrollees whose requests were subjected to utilization review (the review group) with the services provided to 3743 enrollees whose requests received sham review and were automatically approved for insurance coverage (the nonreview group). The enrollees, physicians, and hospitals were all unaware of the group assignments.

RESULTS

During the study period (mean duration, eight months), the members of the review group underwent 1255 procedures in 20 categories of procedures for which second opinions were required (such as breast, cataract, foot, hernia, and hip-replacement surgery, as well as hysterectomy and coronary bypass surgery), and the members of the nonreview group underwent 1365 procedures (P = 0.02). The members of the review group had 124 fewer procedures in doctors' offices and hospital outpatient departments (P = 0.002). In the following year, the members of the review group underwent 248 procedures from the 20 categories, and the members of the nonreview group underwent 234 (P = 0.46). No other differences in patterns of care were found between the groups, including rates of hospital admission to medical-surgical, substances-abuse, or psychiatric units; average lengths of hospital stay; the percentage of enrollees who received preadmission testing; or rates of use of home care. During the study period, the mean age-adjusted insurance payments per person were $7,355 in the review group and $6,858 in the nonreview group (P = 0.06).

CONCLUSIONS

The utilization-review program reduced the performance of diagnostic and surgical procedures for which second opinions were required and did not merely delay them until the following year. Otherwise, the program had little effect. Alternatively, actual review and sham review may both have decreased the use of hospital services, with patients or their physicians choosing more efficient treatment when they believed that care would be reviewed.

Utilization review for Medicaid diagnosis-related group systems: practice, innovation, and lessons of experience

Utilization review practices, innovations and trends for the 21 states using diagnosis-related groups for Medicaid during 1992 are described. According to this descriptive survey, Medicaid inpatient utilization review programs vary widely in authority, approach and focus, reflecting state payment system incentives, health and hospital system characteristics, and provider practice norms. More than half of the states with Medicaid diagnosis-related group systems contract with a Medicare Peer Review Organization. State programs are developing complementary clinical and data analytic approaches, advised by multidisciplinary utilization review committees, and are moving from random review to strategies that focus on specific types of admissions/procedures, and shift as provider practices and utilization patterns change. Utilization review strategies also support payment incentives and system features, e.g., by targeting outliers, readmissions and transfers, and short stays. Overall, programs are becoming more flexible, targeted, and interactive. Trends and suggestions for refining utilization review programs for diagnosis-related group systems are presented.

Managed care for preventive services: a review of policy options

In summary, the managed care system we propose for preventive services is designed to limit the potential for overcare under FFS payment and for undercare under capitation and comprehensive fixed fees. It bases payment on the provision of a complete set of preventive services, thus limiting the tendency of physicians to provide only the relatively high-profit services, such as screening tests, while neglecting the lower-profit services, such as counseling. It also allows primary care providers to outsource selected services to lower-cost providers, such as laboratories, health educators, and counselors, and community-based health promotion programs, thus encouraging greater efficiency. In addition, the proposed system funds both primary and high-risk preventive case management to ensure that individuals receive preventive services appropriate to their age, sex, and risk factors. Finally, the proposed system monitors the use of preventive services, relying on physician reminders to stimulate the appropriate provision of preventive care and denying payment for unauthorized care. Existing research suggests that none of the individual strategies for managed care can be expected to achieve all of the goals of managing and promoting the appropriate use of preventive services as defined by the U.S. Preventive Services Task Force (1989). To be most effective, we conclude that the strategies need to be coordinated and integrated into the current health care delivery practices of HMOs, PPOs, and point-of-service plans. In addition, the strategies require additional provider training in preventive care. With this support, the proposed model has the potential to improve quality, control costs, and increase the appropriate use of preventive care. While many of the individual components of the proposed managed care model have been evaluated for preventive services, a great deal more research is needed to evaluate the effect of combining these elements into a coordinated and comprehensive approach to managing preventive care. Research is also needed on workable ways to invite people not currently receiving medical care into the health care system to receive preventive care. To inform policy development, the impact of the proposed managed care model--both on preventive services utilization for specific screening, immunization, and counseling services, and on total health care costs and patient health status outcomes--needs to be evaluated.

Comparing surgical efficiency in independent practice association HMOS and traditional insurance programs

This study examines the effect of Independent Practice Association (IPA) HMO membership on hospital total charges, ancillary charges and length of stay (LOS) for surgical patients. Intrahospital comparisons of IPA and traditional insurance patients are made after adjusting for surgical procedure, admission severity of illness, age, sex and year of admission. Our multiple regression model indicates that IPA patients undergoing 12 frequently occurring surgical procedures have lower resource use. Eight (80%) of the 10 study hospitals exhibit a negative IPA beta coefficient for total charges, ancillary charges and LOS. Five (50%) hospitals have statistically significant (p < 0.05) negative coefficients for total charges, while one (10%) hospital has a significant positive coefficient. IPA patients exhibit adjusted total charges that are 6% lower than traditional insurance, ancillary charges that are 4.3% lower, and LOS that is 10% shorter.

Utilization managers in Medicare risk contract HMOs: from control to collaboration

A study of utilization management (UM) practices in 13 health maintenance organizations (HMOs) with Medicare members was undertaken as part of an evaluation of the Medicare Risk Contract strategy. Although there were significant variations among HMOs, the common challenges of managing care for this particular population also led to important similarities. Most notable was the emphasis on redirecting the focus of control-oriented utilization review to promotion of continuous improvement in care management. The multiple medical and social service needs of Medicare beneficiaries have forced HMOs to cultivate close collaboration with physicians and UM personnel. Thus, UM personnel are involved throughout the continuum of care and play an important role in assisting HMOs to approach the "seam-less delivery system" ideal. HMOs report that the experience of managing care for Medicare members has made them more responsive to serving all of their members and to promoting long-term partnerships with their physicians.

New methods for evaluating utilization management programs

Blue Cross and Blue Shield of Massachusetts, Inc (BCBS), has developed two new methods for measuring the effect of utilization management (UM) in reducing unnecessary hospital use. The "program component" method measures the separate effect of preadmission review, concurrent review, and discharge planning. The "savable days" method produces a composite measure of the effectiveness of the program as a whole. The use of these two methods is illustrated with five years of utilization review data from the BCBS nongroup insurance product. The results can be used by operations managers and policymakers to measure the performance of individual UM components and the program as a whole, to establish goals and monitor program performance, to modify the program in response to changing utilization patterns, to assist in developing premiums, to establish risk-sharing agreements with employers or providers, and to demonstrate the effectiveness of the program for use in marketing.

Cost-effective management of colon and rectal cancer

Health care costs in the United States of America continue to rise. Legislators, economists and third party payers are becoming increasingly concerned with intervention outcomes and the distribution of resources. It is the responsibility of the medical profession to assume a leading role in assessing the cost-effectiveness of health care interventions. Although many physicians perform informal cost-effectiveness analyses on a daily basis, health economists employ a variety of more complex methodologies. This article will attempt to provide physicians with an understanding of the value and limitations of the tools used in formal cost-effectiveness analyses and demonstrate how these tools may be applied to the management of colon and rectal cancer.

Effect of hospital utilization review on medical expenditures in selected diagnostic areas: an exploratory study

Quarterly claims data on 43 insured groups were analyzed through multivariate techniques to explore whether the effects of hospital inpatient utilization review vary across selected broad diagnostic areas. Findings suggest that utilization review was associated with decreases in expenditures of approximately 15 percent for diagnoses within the surgical area, a lesser decrease within the mental health area, and still lesser decrease within the medical area. However, these measurements are imprecise both because of the small numbers and the aggregated diagnoses in each category.

Reducing hospital use and expenditures through utilization review. Findings from an outcome evaluation

Utilization review (UR) has become a prominent approach to cost containment now used by almost 65% of private group insurance plans. Although insurers have increasingly relied on UR to contain health care costs, until recently little was known about the effects of this cost containment approach. This article reviews some of the key findings of a UR evaluation, based on analysis of claims data on 223 insured groups for the years 1984 through 1986. The evaluation found that UR reduced admissions by 12%, inpatient expenditures by 8%, and total expenditures by 6%. It was estimated that UR generated net savings of $115 per employee per year. Groups adopting UR with high baseline rates of hospital use had larger expenditure reductions and greater net savings. It appears that UR can play an important role in private cost containment and help improve medical care resource consumption.