Switching Swiss enrollees from indemnity health insurance to managed care: the effect on health status and stisfaction with care.

OBJECTIVES. In 1992, most members of a Swiss indemnity health insurance plan were automatically transferred into a newly created managed care organization. This study examined whether this semivoluntary change affected enrollees' health status and satisfaction with care. METHODS. Three groups of enrollees were compared: 332 plan members who accepted the switch (managed care joiners); 186 plan members who opted to maintain indemnity coverage (non-joiners); and 296 persons continuosly enrolled in another indemnity plan (indemnity plan members). Health status, health related behaviors, and satisfaction with care received in the previous year were surveyed at baseline and 1 year later. RESULTS. Health status remained unchanged in all three groups. Smoking prevalence decreased among managed care joiners but remained constant in the other groups. Satisfaction with insurance coverage increased between baseline and follow-up in managed care joiners, but decreased in nonjoiners and indemnity plan members. The latter groups had higher satisfaction with health care, particularly with continuity of care. CONCLUSIONS. A semivoluntary switch from indemnity health insurance to managed care reduced satisfaction with health care but increased satisfaction with insurance coverage. There were no changes in self-perceived health status.     

Self-employment in joinery: An occupational risk facor?

Objectives

Only a few studies have analyzed the health of self-employed workers. This cross-sectional study is the first to compare health status among craftsmen joiners and paid joiners.

Material and Methods

Clinical and paraclinical data for self-employed craftsmen and employees were collected by occupational health doctors according to a standardized protocol and compared. Health data and professional status relationships were analyzed by logistic regression.

Results

A total of 171 craftsmen and 196 paid workers were included. Craftsmen had more dermatologic pathologies (odds ratio (OR) = 2.67, p < 0.05), ear/nose/throat symptoms (OR = 3.38, p < 0.001), pulmonary symptoms (OR = 2.46, p < 0.05), musculoskeletal symptoms (OR = 3.09, p < 0.001), and abnormal audiogram (OR = 3.50, p < 0.001). The FEV1 was significantly lower among craftsmen (p < 0.01), independently of tobacco smoke exposure.

Conclusions

This survey high-lights a high morbidity rate among self-employed craftsmen, suggesting that among woodworkers, professional status can be a risk factor for health. The preventive medical system for craftsmen has to be rethought to guarantee better safety for this population.     

Use of outpatient mental health services in HMO and fee-for-service plans: results from a randomized controlled trial.

Does a prepaid group practice (PGP) deliver less outpatient mental health care than the fee-for-service (FFS) sector when they serve comparable populations with comparable benefits? To examine this issue, we used data from the Rand Health Insurance Study, which randomized families into a prepaid group practice or FFS insurance plans. Participants in a FFS plan with no cost sharing (i.e., free care) are equally likely to visit a mental health specialist in a year, but incur 2.8 times the costs of prepaid participants (p less than .05). This difference is due to fewer visits per user, substitution of psychiatric social workers for psychiatrists and psychologists, and reliance on group rather than individual therapies in the prepaid plan. Because of the experimental design, these differences are due to institutional and incentive differences rather than adverse selection. We found no evidence of appreciable or significant adverse selection into or out of the prepaid group practice. A full evaluation of the desirability of prepaid or fee-for-service care requires data on health outcomes, which are not presented here.     

Rationing or rationalizing children's medical care: comparison of a Medicaid HMO with fee-for-service care.

OBJECTIVES. This paper examines how medical care obtained by children enrolled in a Medicaid health maintenance organization (HMO) differs from that obtained by similar children who receive care from fee-for-service Medicaid providers. METHODS. In a randomized trial, some Medicaid households were assigned to remain in a traditional fee-for-service arrangement and others were randomly selected to join a Medicaid prepaid plan (an HMO). Participating households recorded data on children's health status and use of medical care. RESULTS. The prepaid plan members and the fee-for-service recipients received equivalent numbers of checkup visits, but the children in the prepaid plan made significantly fewer acute care visits. This plan appeared to target its services to children with the greatest health care needs. However, the content of health visits in the two systems did not differ, nor did prepaid and fee-for-service enrollees use the emergency room differently. CONCLUSIONS. It is possible to design a Medicaid HMO that achieves financial savings without reducing services to the most vulnerable patients. However, these findings alone do not provide a basis for widespread policy change in the direction of Medicaid HMOs. Further research is needed to establish whether the children treated in the HMO differed in health outcomes from those treated by fee-for-service care.     

Satisfaction with health care of dually eligible older beneficiaries

Satisfaction with health care was compared for dually eligible older beneficiaries receiving care in three settings: a managed care organization (MCO) that is at risk for providing Medicare and Medicaid benefits (n = 200); the fee-for-service (FFS) sector in the same ZIP Code (n = 201); and respondents to the national Medicare Current Beneficiary Survey (MCBS) (n = 531). Patients in the MCO were more likely to be highly satisfied in three domains--global quality, access to care, and technical skills--compared with patients in the local and national FFS study groups but fewer were highly satisfied with the interpersonal manner of their providers.     

Workers' compensation cost shifting: an empirical study.

It has been suggested that health maintenance organizations (HMOs) overdiagnose work-related injuries and illnesses to increase their income. This study compared the Workers' Compensation experience of 2,176 Boston postal employees enrolled in a large HMO with that of 3,473 employees enrolled in a large fee-for-service health insurance plan. It controlled for the potential confounders of age, gender, job classification, type of injury, and duration of employment. It found no difference in the incidence of injuries: 5.93% for HMO enrollees and 6.25% for fee-for-service plan enrollees. Medical costs averaged $475 for HMO enrollees and $838 for fee-for-service plan enrollees (p = 0.018). Total costs averaged (09 for HMO enrollees and $1388 for fee-for-service plan enrollees (p = 0.063). In our cohort, there was no evidence of cost shifting. It appeared that the HMO provided less expensive medical care for injured postal workers.     

Healthcare Barriers and Utilization Among Adolescents and Young Adults Accessing Services for Homeless and Runaway Youth

Homeless and runaway youth are at disproportionate risk for adverse health outcomes. Many barriers to accessing healthcare have been documented; however, the relative impact of discrete barriers on homeless youth healthcare utilization behavior is not firmly established. We administered a survey examining reported barriers and healthcare utilization among adolescents and young adults accessing services at three community centers for homeless and runaway youth. Of 180 respondents, 57?% were male, 80?% non-White, and 21?% identified as a sexual minority. Stepwise logistic regression models, controlling for age and study site, explored associations between barriers and 3 healthcare utilization outcomes (doctor visit in past 12 months; regular care provider; frequent emergency department (ED) visits). The most commonly reported barriers were “don’t have a ride” (27.2?%), “no insurance” (23.3?%), and “costs too much” (22.8?%). All fear-based barriers (e.g., “I don’t trust the doctors”) were reported by <5?% of surveyed youth. Significant predictors of having seen a doctor in the past 12 months included sexual minority status (OR 2.8, p?=?0.04) and possession of health insurance (OR 4.9, p?<?0.001). Female sex (OR 5.2, p?<?0.001) and reported external barriers other than health insurance (OR 0.2, p?<?0.001) were associated with having a regular care provider. Fear-based concerns were associated (OR 3.8, p?=?0.02) with frequent ED visits, as was being insured (OR 2.2, p?=?0.03). These results underscore the need to clearly define healthcare outcomes when investigating barriers to care among homeless and runaway youth as the impact of discrete barriers varies depending on outcome of focus.     

Employer Health Insurance Offerings and Employee Enrollment Decisions

Objective. To determine how the characteristics of the health benefits offered by employers affect worker insurance coverage decisions.
Data Sources. The 1996–1997 and the 1998–1999 rounds of the nationally representative Community Tracking Study Household Survey.
Study Design. We use multinomial logistic regression to analyze the choice between own-employer coverage, alternative source coverage, and no coverage among employees offered health insurance by their employer. The key explanatory variables are the types of health plans offered and the net premium offered. The models include controls for personal, health plan, and job characteristics.
Principal Findings. When an employer offers only a health maintenance organization married employees are more likely to decline coverage from their employer and take-up another offer (odds ratio (OR)=1.27, p <.001), while singles are more likely to accept the coverage offered by their employer and less likely to be uninsured (OR=0.650, p <.001). Higher net premiums increase the odds of declining the coverage offered by an employer and remaining uninsured for both married (OR=1.023, p <.01) and single (OR=1.035, p <.001) workers.
Conclusions. The type of health plan coverage an employer offers affects whether its employees take-up insurance, but has a smaller effect on overall coverage rates for workers and their families because of the availability of alternative sources of coverage. Relative to offering only a non-HMO plan, employers offering only an HMO may reduce take-up among those with alternative sources of coverage, but increase take-up among those who would otherwise go uninsured. By modeling the possibility of take-up through the health insurance offers from the employer of the spouse, the decline in coverage rates from higher net premiums is less than previous estimates.     

Universal Health Insurance and Equity in Primary Care and Specialist Office Visits: A Population-Based Study

PURPOSE Universal coverage of physician services should serve to reduce socioeconomic disparities in care, but the degree to which a reduction occurs is unclear. We examined equity in use of physician services in Ontario, Canada, after controlling for health status using both self-reported and diagnosis-based measures.METHODS Ontario respondents to the 2000–2001 Canadian Community Health Survey (CCHS) were linked with physician claim files in 2002–2003 and 2003–2004. Educational attainment and income were based on self-report. The CCHS was used for self-reported health status and Johns Hopkins Adjusted Clinical Groups was used for diagnosis-based health status.RESULTS After adjustment, higher education was not associated with at least 1 primary care visit (odds ratio [OR] = 1.05; 95% confidence interval [CI], 0.87–1.24), but it was inversely associated with frequent visits (OR = 0.77; 95% CI, 0.65–0.88). Higher education was directly associated with at least 1 specialist visit (OR = 1.20; 95% CI, 1.07–1.34), with frequent specialist visits (OR = 1.21; 95% CI, 1.03–1.39), and with bypassing primary care to reach specialists (OR = 1.23, 95% CI 1.02–1.44). The largest inequities by education were found for dermatology and ophthalmology. Income was not independently associated with inequities in physician contact or frequency of visits.CONCLUSIONS After adjusting for health status, we found equity in contact with primary care for educational attainment but inequity in specialist contact, frequent visits, and bypassing primary care. In this setting, universal health insurance appears to be successful in achieving income equity in physician visits. This strategy alone does not eliminate education-related gradients in specialist care.     

Children’s Receipt of Health Care Services and Family Health Insurance Patterns

PURPOSE Insured children in the United States have better access to health care services; less is known about how parental coverage affects children’s access to care. We examined the association between parent-child health insurance coverage patterns and children’s access to health care and preventive counseling services.METHODS We conducted secondary analyses of nationally representative, cross-sectional, pooled 2002–2006 data from children (n = 43,509), aged 2 to 17 years, in households responding to the Medical Expenditure Panel Survey (MEPS). We assessed 9 outcome measures pertaining to children’s unmet health care and preventive counseling needs.RESULTS Cross-sectionally, among US children (aged 2 to 17 years) living with at least 1 parent, 73.6% were insured with insured parents, 8.0% were uninsured with uninsured parents, and the remaining 18.4% had discordant family insurance coverage patterns. In multivariable analyses, insured children with uninsured parents had higher odds of an insurance coverage gap (odds ratio [OR] = 2.45; 95% confidence interval [CI], 2.02–2.97), no usual source of care (OR = 1.31; 95% CI, 1.10–1.56), unmet health care needs (OR = 1.11; 95% CI, 1.01–1.22), and having never received at least 1 preventive counseling service (OR = 1.20; 95% CI, 1.04–1.39) when compared with insured children with insured parents. Insured children with mixed parental insurance coverage had similar vulnerabilities.CONCLUSIONS Uninsured children had the highest rates of unmet needs overall, with fewer differences based on parental insurance status. For insured children, having uninsured parents was associated with higher odds of going without necessary services when compared with having insured parents.     

Characteristics and Utilization of Primary Care Services in a Torture Rehabilitation Center

We conducted a retrospective chart review to look into the utilization of healthcare services of refugees. Between December 1998 and June 2001, 146 refugees received care at the Boston Center for Refugee Health and Human Rights. The mean age was 39± 1 years; 57% were males, and 84% were survivors of torture. A significant number of patients were diagnosed with major depression (70%), post-traumatic stress disorder (58%), past hepatitis A infection (77%), and tuberculosis classes 2 and 3 (42%). Patients had on average 2.3 ± 0.1 initial health assessments visits and 3.6 ± 0.3 primary care follow-up visits during a mean follow-up period of 12.8 ± 0.8 months. Subjects with two or fewer initial health assessment visits were less likely to be undergoing psychological counseling (OR: 0.22; 95%CI:0.08–0.58), less likely to be seeking asylum (OR: 0.16; 95%CI: 0.06–0.43), and more likely to be self-referred (OR: 9.6; 95%CI:2.4–39.6). Four or fewer primary care follow-up visits were more likely in subjects who had no health insurance (OR: 7.2; 95%CI:2.0–25.5) and less likely in those referred for psychological counseling (OR: 0.017; 95%CI:0.05–0.54). Patients had a higher prevalence of mental health conditions than that reported in other studies and often declined diagnostic and therapeutic interventions.     

Cachexia and Cognitive Function in the Community-Dwelling Older Adults: Mediation Effects of Oral Health

Background

Cognitive impairment and poor oral health are common problems in older adults and are associated with malnutrition. However, it is unclear how they are related to cachexia in community-dwelling older adults. The aim of this study was to examine the relationships among cachexia, cognitive function, and oral health in community-dwelling older adults.

Methods

This study is a secondary analysis of a data-set. Data were collected in the community setting on older adults who applied for government-funded long-term care services in Hong Kong in 2017. Subjects were community-dwelling and aged ≥60 years. The outcome variable was cachexia. The predictors were cognitive function and oral health. The covariates included demographics and comorbidities associated with cachexia or malnutrition. Path analysis was employed to examine the associations among cachexia, cognitive function, and oral health using the software SAS/STAT and Mplus.

Results

This analysis included 12,940 subjects. The prevalence of cachexia was 1.3%. Cognitive function was also found to have a direct effect on the oral health indicators of chewing problems (OR=1.073, p<0.001), brushing teeth problems (OR=1.349, p<0.001), and swallowing problems (coeff.=0.177, p<0.001). Oral health indicators with a direct effect on cachexia included dry mouth (OR=1.250, p<0.001), brushing teeth problems (OR = 1.185, p<0.01), and swallowing problems (OR=1.231, p<0.001). Cognitive function had no significant direct effect, but had a significant indirect effect on cachexia (OR=1.100, p<0.001) which is mediated by brushing teeth problems (OR=1.052, p<0.001) and swallowing problems (OR=1.038, p<0.001).

Conclusion

Cognitive impairment causes cachexia indirectly through poor oral health. This study recommends adding cognitive function when screening community-dwelling older adults for cachexia. Health policymakers should stress regular oral health screening and interventions, and encourage increased utilization of oral health services by community-dwelling older adults with cognitive problems.

     

The delivery of clinical preventive services: acute care intervention

BACKGROUND:. Evidence-based clinical preventive services are underutilized. We explored the major factors associated with delivery of these services in a large physician-owned community-based group practice that provided care for both fee-for-service (FFS) and health maintenance organization (HMO) patient populations. METHODS: We performed a cross-sectional audit of the computerized billing data of all adult outpatients seen at least once by any primary care provider in 1995 (N = 75,621). Delivery of preventive services was stratified by age, sex, visit frequency, insurance status (FFS or HMO), and visit type (acute care only or scheduled preventive visit). RESULTS: Insurance status and visit type were the strongest predictors of clinical preventive service delivery. Patients with FFS coverage received 6% to 13% (absolute difference) fewer of these services than HMO patients. Acute-care-only patients received 9% to 45% fewer services than patients who scheduled preventive visits. The combination of these factors was associated with profound differences. CONCLUSIONS: Having insurance to pay for preventive services is an important factor in the delivery of such care. Encouraging all patients to schedule preventive visits has been suggested as a strategy for increasing delivery, but that is not practical in this setting. Assessing the need for preventive services and offering them during acute care visits has equal potential for increasing delivery.     

Children's health services in a "system of care": patterns of mental health, primary and specialty use

OBJECTIVES: This study was designed to investigate demonstrable impacts of the Mental Health Services Program for Youth (MHSPY), a highly coordinated, intentionally integrated "system of care," on patterns of health service utilization for youth with multiple needs. METHODS: The MHSPY intervention is available to a target population of urban youth who face barriers to health care and are at risk for out-of-home placement. These youth are enrolled in a non-profit managed care organization (MCO). Patterns of medical, pharmacy, and mental health and substance abuse service use were compared for children aged 3 to 19 across insurance categories. RESULTS: Despite risks for access and engagement barriers to care, and for greater medical expense due to greater morbidity, MHSPY enrollees received significantly more ambulatory care per person-year than either the privately insured population or the Medicaid Standard population, and medical expense for MHSPY members was significantly lower than expected. During the four years studied, individuals in the privately insured and Medicaid Standard populations were less likely than MHSPY enrollees to have had an ambulatory pediatric visit (odds ratio [OR] 0.833, 95% confidence interval [CI] 0.765, 0.908 and OR 0.823, 95% CI 0.775, 0.897, respectively). Medical expenses per member per month for MHSPY enrollees were significantly less than that for the similarly impaired Medicaid Disabled population with any medical claim (p < 0.001) or with any outpatient mental health claim (p < 0.01). CONCLUSIONS: Patterns of health care for subpopulations with known risk are important to identify to evaluate system-of-care effectiveness. The service utilization patterns for youth enrolled in the MHSYP system of care vs. those for similar MCO youth suggest health care access for individuals can be affected by delivery system design variables.     

Health care service use among vulnerable adolescents

Abstract

This article describes the patterns of health care service use among a cohort of vulnerable adolescents with a history of homelessness and uses the Expanded Behavioral Model for Vulnerable Populations to examine factors associated with use of ambulatory and emergent care. We incorporated a health care interview into an existing longitudinal study of newly homeless adolescents, at their 24-month assessment (n?=?183) and assessed their sociodemographic characteristics, including living situation, health insurance rates, having a regular source of care, substance use and health care service use in the past 3 months. By the 24-month assessment, 63% of youth had returned home and 37% were currently homeless. In comparing youth who were currently homeless and those who had returned home, we found similar rates for ambulatory care use (48%) and for emergent care use (15%). The most common reason for seeking ambulatory care related to sexually transmitted disease (STD) testing/HIV testing/reproductive health for both groups. However, currently homeless youth were more likely to seek emergent care for trauma (15% vs. 4%, p?<?0.01) and for common conditions such as skin problems/respiratory infections/gastrointestinal problems/other problems (16% vs. 7%, p?<?0.05). Using multivariate logistic regression, we found older age [odds ratio (OR) 2.6, 95% confidence interval (CI) 1.0–6.5] and health insurance (OR 2.3, 95% CI 1.1–4.5) to be associated with use of ambulatory care; however, only older age (OR 2.7, 95% CI 1.0–7.0) was found to be associated with use of emergent care. Housing status, emotional distress and substance use were not found to be associated with ambulatory or emergent care use. Our findings suggest that facilitating health insurance coverage for vulnerable adolescents with a history of homelessness may lead to increased use of ambulatory care services and may consequently prevent use of emergent care services for conditions that may be treated in the ambulatory care setting.     

Effect of a gatekeeper plan on health services use and charges: a randomized trial.

A randomized trial was conducted to determine the effectiveness of a health care plan which uses physicians as gatekeepers to control health services use and charges. New enrollees in United Healthcare (UHC), an independent practice association, were randomly assigned to the standard UHC plan requiring a gatekeeper, or to an alternate plan with equal benefits but without a gatekeeper. Individuals in both plans were similar in demographic characteristics, perceived health status, and other health insurance coverage. The gatekeeper plan had 6 percent lower total charges per enrollee than the plan without a gatekeeper. There were minor differences in hospital use and charges. Ambulatory charges were $21 lower per person per year in the plan with a gatekeeper (95% CI = -39.9, -2.1) and these were due to .3 fewer visits to specialists (95% CI = -0.50, -0.10). We conclude that a health plan which incorporates incentives and penalties for physicians to act as gatekeepers can reduce the cost of ambulatory services by limiting specialist visits.     

Managed Care Organizational Characteristics and Health Care Use among Children with Special Health Care Needs

Objective. To examine the relationship between features of managed care organizations (MCOs) and health care use patterns by children.
Data Sources. Telephone survey data from 2,223 parents of children with special health care needs, MCO-administrator interview data, and health care claims data.
Study Design. Cross-sectional survey data from families about the number of consequences of their children's conditions and from MCO administrators about their plans' organizational features were used. Indices reflecting the MCO characteristics were developed using data reduction techniques. Hierarchical models were developed to examine the relationship between child sociodemographic and health characteristics and the MCO indices labeled: Pediatrician Focused (PF) Index, Specialist Focused (SF) Index, and Fee-for-Service (FFS) Index, and outpatient use rates and charges, inpatient admissions, emergency room (ER) visits, and specialty consultations.
Data Collection/Extraction Methods. The telephone and MCO-administrator survey data were linked to the enrollment and claims files.
Principal Findings. The child's age, gender, and condition consequences were consistent predictor variables related to health care use and charges. The PF Index was associated with decreased outpatient use rates and charges and decreased inpatient admissions. The SF Index was associated with increased ER visits and decreased specialty consultations, while the FFS Index was associated with increased outpatient use rates and charges.
Conclusion. After controlling for sociodemographic and health characteristics, the PF, SF, and FFS indices were significantly associated with children's health care use patterns.     

The effect of variable health insurance deductibles on the demand for physician visits

In order to contain cost in the health care sector, the introduction of consumer incentives in health insurance has been suggested and realized in many countries. The Swiss health system reform of 1996 introduced a choice of deductible for health services in the mandatory basic health insurance. This paper estimates the effect of this choice on physician service utilization. A generalized method of moments (GMM) estimator is applied to take account of the endogeneity of the choice of the deductible in the estimation of the number of physician visits. This paper finds that most of the observed reduction in the number of physician visits among individuals who choose a higher deductible seems to be a result of self-selection of individuals into the respective insurance contracts, and not to induced changes in utilization behaviour.     

Scattering of primary care: Doctor switching and utilization of health care by children on fee-for-service medicaid

Objective To determine whether children on fee-for-service Medicaid who switch primary care doctors use less health care and are less up to date with preventive care visits than children who do not switch primary care doctors. Design Retrospective cohort study using Medicaid claims data. Setting 51,027 children enrolled on Medicaid in Monroe County, New York. Patients 14,187 children enrolled continuously on fee-for-service Medicaid between January 1992 and December 1994. Main Outcome Measures Utilization of primary care, emergency department (ED) services, and specialty care and proportion up to date with preventive care visits according to American Academy of Pediatrics guidelines. Results During the 2-year study period, 22% of children switched primary care doctors. Compared with children who did not switch primary care doctors, those who switched had more primary care visits (4.7 vs. 3.2 visits/year,P<.01), age-adjusted preventive care visits (1.2 vs. 1.0 visits/year), ED visits (0.72 vs. 0.47 visits/year,P<.01), and specialist visits (0.99 vs. 0.31,P<.01). On multivariate analysis, doctor switching was associated with increased odds of being up to date with preventive care visits (odds ratio [OR]=1.7; 95% confidence interval [CI] 1.3 to 2.1). However, on multivariate analysis stratified by age, the association was significant only for older children (ages 11 to 14). Altogether, 68% of all children and 44% of infants less than 1 year old made the recommended number of preventive care visits during the study period. Conclusions All groups of children received less preventive care than recommended by the American Academy of Pediatrics. Children who switched primary care doctors had higher utilization of health care, including primary care, ED, and specialty care. Contrary to expectations, they were more likely to be up to date with preventive care visits. The heavy utilization of health services by doctor switchers indicates that this subgroup of children on Medicaid may not be at risk for poor access to health care, but additional research is needed to determine whether the quality of care is related to doctor switching. Presented in part at the Pediatric Academic Societies 1996 Annual Meeting, Washington, DC, May 8, 1996. This work was supported in part by a Frank Disney Scholarship through the Strong Children's Research Center, University of Rochester School of Medicine and Dentistry, and by National Research Service Award 1F32 HS00089-01 from the Agency for Health Care Policy and Research.     

What people really know about their health insurance: a comparison of information obtained from individuals and their insurers

OBJECTIVES: This study determined the validity of self-reported data on selected health insurance characteristics. METHODS: We obtained telephone survey data on the presence of health insurance, source of insurance, length of time insured, and type of insurance (managed care or fee-for-service) from a random sample of 351 adults in 3 Wisconsin counties and compared findings with data from respondents' health insurers. RESULTS: More than 97% of the respondents correctly reported that they were currently insured. For source of insurance among persons aged 18 to 64 years, sensitivity was high for those covered through private health insurance (93.8%) but low for those covered through public insurance (6.7%). Only 33.1% of the respondents accurately categorized length of enrollment in their current plan. Overall estimates for managed care enrollment were similar for the 2 sources, but individual validity was low: 84.2% of those in fee-for-service believed that they were in managed care. CONCLUSIONS: Information obtained from the general population about whether they have health insurance is valid, but self-reported data on source of insurance, length of time insured, and type of insurance are suspect and should be used cautiously.