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What should (public) health insurance cover?

In any system of health insurance, a decision must be made about what treatments the insurance should cover. One way to make this decision is to rank treatments by their ratios of health benefits to treatment costs. If treatments that are not offered by the health insurance can be purchased out of pocket, the socially optimal ranking of treatments to be included in the health insurance is different from this standard cost-effectiveness rule. It is no longer necessarily true that treatments should be ranked higher the lower are treatment costs (for given health benefits). Moreover, the larger are the costs per treatment for a given benefit-cost ratio, the higher priority should the treatment be given. If the health budget in a public health system does not exceed the socially optimal size, treatments with sufficiently low costs should not be performed by the public health system if treatment may be purchased privately out of pocket.

Health Care Costs↗

Trust in micro-health insurance: an exploratory study in Rwanda.

Micro-health insurance (MHI) has been proposed as an alternative to user fees to improve access to medical care without the threat of financial impoverishment. To enrol in health insurance and pay a premium, consumers should be able to trust that insurers use their funds to reimburse providers who will deliver quality care when needed. In 1998, shortly after the re-introduction of user fees, the Rwandan Ministry of Health in close collaboration with the local population developed and implemented MHI in three districts. Member benefits cover preventive and curative care in health centres and ambulance transport to the district hospital where a limited package of services is also covered by MHI. This paper examines trust-building structures and practices in MHI in Rwanda. It is an exploratory, descriptive analysis using information collected from focus groups. Findings suggest that MHI managers, providers and policy-makers need to think systematically about a wide range of initiatives that enhance trust and caring, and to design trust-building structures and practices in the consumer-insurance-provider arrangement.

Focus Groups↗

Car insurance and the risk of car crash injury.

Despite speculation about the role of vehicle insurance in road traffic accidents, there is little research estimating the direction or extent of the risk relationship. Data from the Auckland Car Crash Injury Study (1998-1999) were used to examine the association between driving an uninsured motor vehicle and car crash injury. Cases were all cars involved in crashes in which at least one occupant was hospitalized or killed anywhere in the Auckland region. Controls were 588 drivers of randomly selected cars on Auckland roads. Participants completed a structured interview. Uninsured drivers had significantly greater odds of car crash injury compared to insured drivers after adjustment for age, sex, level of education, and driving exposure (odds ratio 4.77, 95% confidence interval 2.94-7.75). The causal mechanism for insurance and car crash injury is not easily determined. Although we examined the effects of multiple potential confounders in our analysis including socioeconomic status and risk-taking behaviours, both of which have been previously observed to be associated with both insurance status and car crash injury, residual confounding may partly explain this association. The estimated proportion of drivers who are uninsured is between 5 and 15% in developed countries, representing a significant public health problem worthy of further investigation.

Accidents, Traffic↗

Hospital transfer of patients with acute myocardial infarction: the effects of age, race, and insurance type.

BACKGROUND: Many factors precipitate the transfer of patients hospitalized for acute myocardial infarction, including clinical status and the need for diagnostic testing and therapeutic interventions not available at the admitting hospital. The objectives of this study were to assess the frequency of transfer to another hospital and to determine whether nonmedical factors, such as age, sex, race, and insurance status, are associated with transfer. METHODS: We conducted a prospective study of patients with acute myocardial infarction who were enrolled in the National Registry of Myocardial Infarction 2 from June 1994 through March 1998. The Registry involves 1674 hospitals in the United States. All patients survived to the time of hospital discharge or until transfer. Multivariable logistic regression models, with transfer as the outcome variable, were developed for the entire sample, as well as for subgroups determined by the interventional capabilities of the admitting hospital. RESULTS: Of 537,283 patients with acute myocardial infarction, 152,310 (28%) were transferred to another hospital after admission. After adjustment for differences in clinical and hospital characteristics, factors that were most associated with a reduced odds of transfer included older age (odds ratio [OR] = 0.43; 95% confidence interval [CI]: 0.42 to 0.44 for those aged >75 vs. <65 years), African-American race (OR = 0.69; 95% CI: 0.67 to 0.71 for African Americans vs. whites), and Medicaid/self-pay insurance status (OR = 0.68; 95% CI: 0.66 to 0.70 for Medicaid/self-pay vs. commercial insurance). These effects were most apparent for patients admitted to hospitals without full invasive diagnostic and therapeutic capabilities, but persisted to some extent among those admitted to hospitals with full invasive services. CONCLUSION: Our findings suggest that nonmedical factors, including age, race, and insurance type, affect decisions regarding the transfer of patients hospitalized with acute myocardial infarction. As only a minority of the nation's hospitals offers a full range of cardiovascular diagnostic and therapeutic procedures, these findings reinforce ongoing concerns about disparities in access to health care services for some patients.

Age Factors↗

Age pattern of mortality in eight breeds of insured dogs in Sweden.

The objective of this study was to use several methods to describe the age patterns for risk of death in selected breeds of dogs insured for life in a Swedish animal-insurance company in 1996. Data on eight breeds were analyzed for age at death (including euthanasia). If dogs left the insurance for reasons other than death, they were regarded as censored. Dogs were only insured up to 10 years of age. Four analytical approaches were used. First, descriptive statistics of age distributions (e.g. breed-specific median ages at death, breed- and age-specific mortality risks) were computed. Second, age-specific estimates of survival were calculated using the formula: survival=(1-risk(age<1 year))(1-risk(age 1<2 year))... (1-risk(age 9<1 0 year)). Third, Cox regression (proportional-hazards model) was used to estimate survival and hazard functions. Finally, hierarchically coded Poisson regression was used to determine age-specific cut-points in the risk of death. The hazards from Cox and the incidence-density rates from the hierarchically coded models were transformed to estimates of risk: risk=1-exp¿-(hazard)¿ or 1-exp¿-(incidence-density rate)¿. The breeds studied were Beagle, Bernese mountain dog, Boxer, Cavalier King Charles spaniel, Drever, German shepherd dog, Mongrel and Poodle, together representing over 50000 dogs each year. The yearly breed-specific mortality risk varied between 1.7% (Poodle) and 6.5% (Bernese mountain dog). In all breeds, the risk of death increased with age but the pattern varied by breed. The probability of survival at 5 years of age varied between 94% (Cavalier King Charles spaniel and Poodle) and 83% (Bernese mountain dog, Drever, German shepherd dog) and the survival at 10 years between 83% (Poodle) and 30% (Bernese mountain dog). The survival estimates from Cox and those derived using the combined-risk formula were similar. The cut-point risk estimates provided a simplified picture of when the risk of death changed significantly compared to previous age categories. As anticipated, breeds differed widely in survival up to 10 years of age and there were marked differences in age patterns of mortality. The implications of these findings should be considered in multivariable analyses, where the confounding effect of age is often controlled for using a single age variable common to several breeds.

Age Distribution↗

Correction note on "The demand for health with uncertainty and insurance".

This paper proves the non-existence of an optimal solution under the Liljas [Liljas, B. (1998). The demand for health with uncertainty and insurance. J. Health Econ., 17, 153-170] type of insurance. The reason for the non-existence is that the insurance induces the individual to increase his time input, relative to medical expenditure in the household production of health investment. Hence, it distorts the balance of inputs in the production of health investment. Moreover, it also distorts the household production for consumption goods through time constraints. Therefore, this paper proposes an alternative insurance that covers the time loss due to illness and has an optimal solution.

Attitude to Health↗

Avoiding health insurance crowd-out: evidence from the Medicare as secondary payer legislation.

The cost of expanding health insurance coverage increases when people who would otherwise purchase insurance obtain public coverage. This paper investigates the effects of one of the first efforts to target insurance benefits to the most needy, the 1982 medicare as secondary payer (MSP) provisions. We find strong evidence of low compliance with the MSP both in terms of medical bill payments (payment compliance) and employer-sponsored insurance coverage (coverage compliance). We estimate payer compliance at approximately 33%. Coverage compliance is lower, at under 25%. We find weak evidence that the MSP caused older workers to shift toward MSP-exempt jobs.

Aged↗

Do people shift their use of health services over time to take advantage of insurance?

This paper provides a test of the hypothesis that people shift their consumption of health services to time periods when they have more generous insurance coverage, in order to take advantage of third-party payment. We use data from the Survey of Income and Program Participation to compare utilization rates for people in transition between being insured and being uninsured to those of people who are continuously insured and continuously uninsured. We find little support for the hypothesis that people anticipate changes in their insurance status and arrange their health care consumption accordingly.

Data Collection↗

Properties of actuarially fair and pay-as-you-go health insurance schemes for the elderly. An OLG model approach.

The aged dependency ratio or ADR is growing at a fast pace in many countries. This fact causes stress to the economy and might create conflicts of interest between young and old. In this paper the properties of different health insurance systems for the elderly are analysed within an overlapping generations (OLG) model. The properties of actuarial health insurance and different variations of pay-as-you-go (PAYG) health insurance are compared. It turns out that the welfare properties of these contracts are heavily dependent on the economy's dynamic properties. Of particular importance is the magnitude of the rate of population growth relative to the interest rate. In addition, it is shown that public health insurance is associated with an inherent externality resulting in a second-best solution.

Actuarial Analysis↗

Willingness to pay for health insurance in a developing economy. A pilot study of the informal sector of Ghana using contingent valuation.

In the midst of high cost of health care both at the macro and micro levels, health insurance becomes a viable alternative for financing health care in Ghana. It is also a way of mobilising private funds for improving health care delivery at the macro level. This study uses a contingent valuation method to assess the willingness of households in the informal sector of Ghana to join and pay premiums for a proposed National Health Insurance scheme. Focus group discussions, in-depth and structured interviews were used to collect data for the study. There was a high degree of acceptance of health insurance in all the communities surveyed. Over 90% of the respondents agreed to participate in the scheme and up to 63.6% of the respondents were willing to pay a premium of 5000 cents or $3.03 a month for a household of five persons. Using an ordered probit model, the level of premiums households were willing to pay were found to be influenced by dependency ratio, income or whether a household has difficulty in paying for health care or not, sex, health care expenditures and education. As income increases, or the proportion of unemployed household members drop, people are willing to pay higher premiums for health insurance.

Consumer Behavior↗

Are market-oriented health insurance reforms possible in Latin America? The cases of Argentina, Chile and Colombia.

The process of health care reform benefits tremendously from comparing characteristics and performance across nations. This paper studies market-oriented health insurance reforms in three Latin American countries: Argentina, Chile and Colombia. Chile allowed private health insurers to compete for workers payroll contributions in the 1980s, permitting the modernization of the private health sector but relatively impoverishing the public health sector as a consequence of selection practices by private carriers. In the 1990s, Argentina and Colombia started liberalizing the health insurance sector but using policies to avoid the adverse effects encountered in the Chilean experience. These policies are scrutinized while challenges for these and future health insurance reform processes are discussed.

Argentina↗

Equity in health care access to: assessing the urban health insurance reform in China.

This study evaluates changes in access to health care in response to the pilot experiment of urban health insurance reform in China. The pilot reform began in Zhenjiang and Jiujiang cities in 1994, followed by an expansion to 57 other cities in 1996, and finally to a nationwide campaign in the end of 1998. Specifically, this study examines the pre- and post-reform changes in the likelihood of obtaining various health care services across sub-population groups with different socioeconomic status and health conditions, in an attempt to shed light on the impact of reform on both vertical and horizontal equity measures in health care utilization. Empirical estimates were obtained in an econometric model using data from the annual surveys conducted in Zhenjiang City from 1994 through 1996. The main findings are as follows. Before the insurance reform, the likelihood of obtaining basic care at outpatient setting was much higher for those with higher income, education, and job status at work, indicating a significant measure of horizontal inequity against the lower socioeconomic groups. On the other hand, there was no evidence suggesting vertical inequity against people of chronic disease conditions in access to care at various settings. After the reform, the new insurance plan led to a significant increase in outpatient care utilization by the lower socioeconomic groups, making a great contribution to achieving horizontal equity in access to basic care. The new plan also has maintained the measure of vertical equity in the use of all types of care. Despite reform, people with poor socioeconomic status continue to be disadvantaged in accessing expensive and advanced diagnostic technologies. In conclusion, the reform model has demonstrated promising advantages over pre-reform insurance programs in many aspects, especially in the improvement of equity in access to basic care provided at outpatient settings. It also appears to be more efficient overall in allocating health care resources by substituting outpatient care for more expensive care at emergency or inpatient settings.

Adult↗

Indigenous social insurance as an alternative financing mechanism for health care in Ethiopia (the case of eders).

With increasing demand for services further propagated by population growth and by people's response to newly emerging pathologies, nations in sub-Saharan Africa are faced with insurmountable problems in sustaining their health systems. Realizing the inadequacy of solely relying on the public sector, these countries are seeking alternative mechanisms for health financing. Among the alternatives suggested are risk-sharing mechanisms that include community-based schemes that tap the potential of indigenous social arrangements. In Ethiopia, eders are major forms of indigenous arrangements utilized mainly for assisting victims in bereavement and executing funeral-related activities. These associations are also called upon in various self-help activities and sometimes provide health insurance, even though mostly in an informal manner. Therefore, they have the potential to serve as social financing mechanisms. Since these are already functioning groups, the administrative cost for the extra health-related activity will not be as high as in the case of forming a new insurance entity. In addition, the fact that eders are based on mutual understanding among members minimizes the possibility of adverse selection. Based on the above background, an exploratory study was conducted in 40 villages distributed in various parts of Ethiopia to assess the possible roles eders might play in providing insurance for health financing. Both qualitative and quantitative (household and health facility exit interview surveys) methods of data collection were utilized. The study concludes that eder-based schemes are, indeed, options for experimentation as mechanisms for financing health care in rural Ethiopia. It was also found that 21.5% of respondents in the household and 16% of those in the exit surveys were already utilizing eders to finance part of their health expenditure. In addition, 86% of the respondents in the household and 90% of those in the exit survey were willing to participate in eder-based health insurance schemes.

Community Networks↗

Prevalence of cardiovascular risk factors in South Korean adults: results from the Korea Medical Insurance Corporation (KMIC) Study.

PURPOSE: To estimate the prevalence of cardiovascular risk factors in South Korea. METHODS: Data were obtained from the Korea Medical Insurance Corporation (KMIC) which provides insurance to civil servants and private school workers. The study sample included female workers, ages 35 to 59 (n = 67,861), and a systematic random sample of insured male workers, ages 35 to 59 (n = 115,200), who attended insurance examinations in 1990 and 1992. Prevalence estimates were age-adjusted to reflect the Korean population, ages 35 to 59, in 1990. RESULTS: The prevalence of hypertension (systolic blood pressure > or = 140 mmHg and/or diastolic blood pressure > or = 90 mmHg) was 28.9% in men and 15.9% in women. The prevalence of hypercholesterolemia (total cholesterol > or = 240 mg/dl) was 8.9% and 10.4% in men and women, respectively. Smoking was highly prevalent in men (57.4%) and uncommon in women (0.6%). The prevalence of a fasting blood sugar > or = 126 mg/dl was 4.7% in men and 1.3% in women. Among men, 74.4% had one or more of the cardiovascular risk factors under study. Among women, 29.0% had one or more of the risk factors. With advancing age, the prevalence of risk factors became more numerous, for both men and women. CONCLUSION: In order to avert the ongoing epidemic of cerebrovascular disease and the emerging problem of ischemic heart disease, prevention and treatment of modifiable risk factors must become an important health priority in South Korea.

Adult↗

Private health insurance for adolescents: is it adequate?

PURPOSE: To examine the nature and extent of private insurance coverage available for health services needed by six hypothetical adolescents with physical and mental health conditions. METHODS: Health insurance information was obtained from the most commonly sold product of the largest health maintenance organization (HMO) and preferred provider organization (PPO) in each state and the District of Columbia. Contract documents were collected in 1999 and were in effect at the end of 1998. Our response rate was 97% and included 49 HMOs and 49 PPOs. The extent of coverage was analyzed according to benefit availability, structure, limits, and protections, as well as condition and treatment restrictions. RESULTS: The two hypothetical adolescents with asthma and depression had coverage for their recommended health services in most of the 98 plans. However, the four hypothetical adolescents whose conditions included pregnancy and sexually transmitted disease, anorexia nervosa, injury, and substance abuse and bipolar disorder would rarely have access to coverage for all of their recommended services. Ancillary and behavioral health therapies were least likely to be available in the amounts considered necessary by medical experts. All of the hypothetical adolescents would be more likely to obtain coverage for certain services in HMO than in PPO plans. CONCLUSIONS: Despite the obvious value of the private health insurance system, insurance benefits are not always matched to the needs of the adolescent. Employers and policymakers may want to consider financial or other incentives to create more uniformity in employer-based coverage, particularly for preventive care, prescription drugs, and reproductive services; greater availability of mental health and substance abuse benefits; and new mechanisms to support access to confidential care.

Accidents, Traffic↗

Comparison of anti-infective drug use in elderly persons in Manitoba, Nova Scotia, and Saskatchewan, Canada: relationship to drug insurance reimbursement policies.

BACKGROUND: Antimicrobial drug resistance continues to be a concern. Inappropriate use of antimicrobial agents is a well-documented contributory factor in the development of resistance. Canadian publicly funded drug insurance (pharmacare) programs have various approaches to reimbursement for antimicrobial drugs and promoting the appropriate prescribing of these agents. OBJECTIVE: The objective of this study was to examine changes in antimicrobial use over a 3-year period in relation to the reimbursement policies of the public drug insurance programs for elderly persons in Manitoba, Nova Scotia, and Saskatchewan. METHODS: The pharmacare databases of the 3 provincial drug insurance programs were accessed for fiscal years 1995/96, 1996/97, and 1997/98. Antimicrobial drug use was reported as mean age- and sex-standardized defined daily doses (DDDs) dispensed per 1000 beneficiaries per year. Provincial antimicrobial drug use was compared and related to provincial reimbursement policies. RESULTS: The rates and types of antimicrobial drugs dispensed to elderly beneficiaries of the Manitoba, Nova Scotia, and Saskatchewan pharmacare programs varied. Between fiscal years 1995/96 and 1997/98, DDDs of antimicrobials per 1000 beneficiaries per year decreased by 11.5% in Saskatchewan and increased by 1.2% in Manitoba and 6.2% in Nova Scotia. Rates of use of broadspectrum agents such as amoxicillin/clavulanate, azithromycin, clarithromycin, and fluoroquinolones were lower in the provinces that had reimbursement guidelines. Even when reimbursement policies were similar, as for fluoroquinolones in Manitoba and Saskatchewan, rates of use varied markedly, possibly as a result of the method of implementing the reimbursement guidelines. Use of fluoroquinolones, macrolides, penicillins, beta-lactamase-resistant penicillins, and tetracyclines was lower and use of sulfonamides and trimethoprim was greater in Saskatchewan than in Nova Scotia and Manitoba. CONCLUSIONS: The reimbursement guidelines of provincial drug insurance programs are among the factors affecting the use of antimicrobial agents. Both the type of reimbursement policy and the policy implementation mechanism affected the rate of utilization. Further research is needed to link drug-use information with data such as antimicrobial resistance patterns, diagnoses, physician visits, and hospitalizations.

Aged↗

Private agencies for public purposes: some new perspectives on policy making in health insurance between the wars.

The approved societies, who were charged with the administration of health insurance in Britain, have long been blamed for the failure of the scheme to expand its coverage or scope in the interwar period. This paper takes a closer look at the administrative process and argues that societies were more vulnerable to central regulation than is commonly thought and were unable to resist cuts in public subsidies and extensions in liability introduced at their expense. They provided a convenient scapegoat for policies emanating primarily from the economic orthodoxy subscribed to by both government and the Treasury, modified to protect the unemployed during the slump. Health insurance policy was dominated to a large extent by the Government Actuary, who aimed to guarantee the cost effectiveness of the scheme. This paper also shows how administrative definitions and practices affected the classification of claimants to state social insurance at this time. It re-establishes the major weaknesses of the system, arguing that--in the light of recent discussions about reviving a system of national health insurance--we have much to learn from looking again at the experience of the interwar period.

Insurance, Health↗

Displaced workers and employer-provided health insurance: evidence of a wage/fringe benefit tradeoff?

Job changes that result from plant closings and mass layoffs provide an opportunity to see how workers respond to an employment shock that is arguably exogenous to individual productivity. Comparing compensation packages of displaced workers on their old and new jobs is a potentially promising method to infer a tradeoff between wages and non-wage benefits. Although displaced worker data overcomes many of the pitfalls to estimating wage/fringe tradeoffs by controlling for time-invariant unobserved productivity, time-varying unobservables could still bias estimates. In this analysis, I investigate the compensating wage differential for one particularly valuable benefit, employer-provided health insurance. I find that even after controlling for an extensive set of productivity factors, I obtain results indicating a wrong-signed tradeoff. Those who lose health insurance through the job change also lose wages relative to other displaced workers, while those who gain health insurance also gain in wages. Individuals expected to incur higher health care costs (older workers and workers who are likely to buy family coverage) do not experience steeper wage/health insurance tradeoffs as would be expected if employers were able to pass health care costs on to workers according to individual costs. Although this exercise fails to isolate a wage/fringe tradeoff, the strong correlation between changes in wages and changes in fringe benefits has important implications for public policy towards displaced workers. Further research is needed to understand the true magnitude and distribution of the costs of job displacement taking changes in fringe benefits into account.

Efficiency↗