How Well Does Medicaid Work in Improving Access to Care?

OBJECTIVE: To provide an assessment of how well the Medicaid program is working at improving access to and use of health care for low-income mothers. DATA SOURCE/STUDY SETTING: The 1997 and 1999 National Survey of America's Families, with state and county information drawn from the Area Resource File and other sources. STUDY DESIGN: Estimate the effects of Medicaid on access and use relative to private coverage and being uninsured, using instrumental variables methods to control for selection into insurance status. DATA COLLECTION/EXTRACTION METHOD: This study combines data from 1997 and 1999 for mothers in families with incomes below 200 percent of the federal poverty level. PRINCIPAL FINDINGS: We find that Medicaid beneficiaries' access and use are significantly better than those obtained by the uninsured. Analysis that controls for insurance selection shows that the benefits of having Medicaid coverage versus being uninsured are substantially larger than what is estimated when selection is not accounted for. Our results also indicate that Medicaid beneficiaries' access and use are comparable to that of the low-income privately insured. Once insurance selection is controlled for, access and use under Medicaid is not significantly different from access and use under private insurance. Without controls for insurance selection, access and use for Medicaid beneficiaries is found to be significantly worse than for the low-income privately insured. CONCLUSIONS: Our results show that the Medicaid program improved access to care relative to uninsurance for low-income mothers, achieving access and use levels comparable to those of the privately insured. Our results also indicate that prior research, which generally has not controlled for selection into insurance coverage, has likely understated the gains of Medicaid relative to uninsurance and overstated the gains of private coverage relative to Medicaid.     

Children of working low-income families in California: does parental work benefit children's insurance status,access, and utilization of primary health care?

OBJECTIVE: To examine financial and nonfinancial access to care and utilization of primary health care services among children of working low-income families earning below 200 percent of the federal poverty level in California, and to compare them to children in nonworking low-income families and in families earning over 200 percent of poverty. DATA SOURCES/STUDY SETTING: The 1994 National Health Interview survey weighted to reflect population estimates for California. STUDY DESIGN: This cross-sectional study of 3,831 children under age 19 focuses on financial access, that is, the prevalence and continuity of health insurance coverage; structural access, including the presence of a usual source of care, the predominant care source, its responsiveness to patient's needs, and any indications of delayed or missed care; and utilization of health care measured by the presence of an outpatient doctor's visit and the mean number of visits relative to child health status. DATA COLLECTION: The study uses secondary analysis. FINDINGS: Compared to children of nonworking low-income parents and to nonpoor children, children of working low-income parents were more likely to be uninsured (32.1 percent versus 15.6 percent and 10.3 percent, p = .0001) and to experience disruptions in insurance coverage (p = .0009). These differences persisted after controlling for other covariates in multivariate analyses. Children of working low-income parents did not differ significantly from children of nonworking low-income parents on measures of structural access or utilization, after adjusting for other covariates. However, they differed significantly from nonpoor children on structural access and utilization, and these differences mostly persisted after adjusting for other covariates (odds ratios from 1.5 to 2.9). Similar patterns were observed when children of full-time, year-round working parents with low earnings were compared with the two reference populations. CONCLUSION: Children in working low-income families in California have some of the worst access problems. Even full attachment to the workforce does not guarantee health insurance benefits, access to care, or improved health care use for children of low-income parents. These children are not better off than other low-income children of nonworking parents and are much worse off than nonpoor children. Expansion of health insurance coverage through Healthy Families and Medi-Cal, and attention to nonfinancial barriers to care for working low-income families may help to reduce these disparities.     

Disparities in Adolescent Health and Health Care: Does Socioeconomic Status Matter?

DATA COLLECTION/EXTRACTION METHODS: National household survey. DATA SOURCES/STUDY SETTING: We analyzed data on 12,434 adolescents (10 through 18 years old) included in the 1999 and 2000 editions of the National Health Interview Survey. STUDY DESIGN: We assessed the presence of income gradients using four income groups. Outcome variables included health status, health insurance coverage, access to and satisfaction with care, utilization, and unmet health needs. PRINCIPAL FINDINGS: After adjustment for confounding variables using multivariate analysis, statistically significant disparities were found between poor adolescents and their counterparts in middle- and higher-income families for three of four health status measures, six of eight measures of access to and satisfaction with care, and for six of nine indicators of access to and use of medical care, dental care, and mental health care. CONCLUSION: Our analyses indicate adolescents in low-income families remain at a disadvantage despite expansions of the Medicaid program and the comparatively new State Children's Health Insurance Program (SCHIP). Additional efforts are needed to ensure eligible adolescents are enrolled in these programs. Nonfinancial barriers to care must also be addressed to reduce inequities.     

The changing profile of the urban uninsured: Exploring implications of rise in the number of moderate-income uninsureds

Access to care is a major problem in urban America that increasingly affects new segments of the population. Although the demographic profile of the uninsured has changed, recording large increases in numbers of moderate-income uninsured persons, it has not been accompanied by changes in health care safety net programs or increased availability of private insurance products tailored to these groups. Any such changes, however, need to be based on a good understanding of the similarities and differences between low-income and moderate-income uninsured. Based on a telephone survey of the uninsured in three northern New Jersey counties, this study presents a systematic comparison of low-income (below 150% of federal poverty level) and moderate-income (150% to 350% federal poverty level) uninsured on attitudes to health care, perceptions regarding access to care, health status, and health care utilization. We discuss the implications of this comparison for expanding health care access and design of safety net programs and institutions. Dr. Pandey is Assistant Professor of Public Policy and Administration at Rutgers University, Camden, New Jersey, and holds a secondary appointment in the School of Public Health of the University of Medicine and Dentistry of New Jersey     

The prevalence of low income among childbearing women in California: implications for the private and public sectors.

OBJECTIVES: This study examined the income distribution of childbearing women in California and sought to identify income groups at increased risk of untimely prenatal care. METHODS: A 1994/95 cross-sectional statewide survey of 10,132 postpartum women was used. RESULTS: Sixty-five percent of all childbearing women had low income (0%-200% of the federal poverty level), and 46% were poor (0%-100% of the federal poverty level). Thirty-five percent of women with private prenatal coverage had low income. Most low-income women with Medi-Cal (California's Medicaid) or private coverage received their prenatal care at private-sector sites. Compared with women with incomes over 400% of the poverty level, both poor and near-poor women were at significantly elevated risk of untimely care after adjustment for insurance, education, age, parity, marital status, and ethnicity (adjusted odds ratios = 5.32 and 3.09, respectively). CONCLUSIONS: This study's results indicate that low-income women are the mainstream maternity population, not a "special needs" subgroup; even among privately insured childbearing women, a substantial proportion have low income. Efforts to increase timely prenatal care initiation cannot focus solely on women with Medicaid, the uninsured, women in absolute poverty, or those who receive care at public-sector sites.     

Improving coverage and access for immigrant Latino children: the Los Angeles healthy kids program

A large number of California counties have recently taken bold steps to extend health insurance to all poor and near-poor children through county-based Children's Health Initiatives. One initiative, the Los Angeles Healthy Kids program, extends coverage to uninsured children in families with incomes below 300 percent of the federal poverty level who are ineligible for Medi-Cal (California Medicaid) and Healthy Families (its State Children's Health Insurance Program). A four-year evaluation of Healthy Kids finds that the program has improved access for more than 40,000, most of whom are immigrant Latino children, who have almost no access to employer coverage. However, sustaining this effective program has proved to be challenging.     

Factors associated with parent report of access to care and the quality of care received by children 4 to 17 years of age in Georgia

We examined factors associated with health care access and quality, among children in Georgia. Data from the 2007 National Survey of Children's Health were merged with the 2008 Area Resource File. The medically underserved area variable was appended to the merged file, restricting to Georgia children ages 4-17 years (N = 1,397). Study outcomes were past-year access to care, defined as utilization of preventive medical care and no occasion of delay or denial of needed care; and quality of care received, defined as compassionate, culturally-effective, and family-centered care which was categorized as higher, moderate, or lower. Analysis included binary and multinomial logit modeling. In our study population, 80.8 % were reported to have access to care. The quality of care distribution was: higher (39.4 %), moderate (30.6 %), and lower (30.0 %). Younger age (4-9 years) was positively associated with having access to care. Compared to children who had continuous and adequate private insurance, children who were never/intermittently insured or who had continuous and inadequate private insurance were less likely to have access. Compared to children who had continuous and adequate private insurance, there were lower odds of perceiving received care as higher/moderate versus lower quality among children who were never/intermittently insured or who had continuous and inadequate/adequate public insurance. Being in excellent/very good health and living in safe/supportive neighborhoods were positively associated with quality; non-white race/ethnicity and federal poverty level were negatively associated with quality. Assuring continuous, adequate insurance may positively impact health care access and quality.     

Factors Associated with Parent Report of Access to Care and the Quality of Care Received by Children 4 to 17 Years of Age in Georgia

We examined factors associated with health care access and quality, among children in Georgia. Data from the 2007 National Survey of Children’s Health were merged with the 2008 Area Resource File. The medically underserved area variable was appended to the merged file, restricting to Georgia children ages 4–17 years (N = 1,397). Study outcomes were past-year access to care, defined as utilization of preventive medical care and no occasion of delay or denial of needed care; and quality of care received, defined as compassionate, culturally-effective, and family-centered care which was categorized as higher, moderate, or lower. Analysis included binary and multinomial logit modeling. In our study population, 80.8 % were reported to have access to care. The quality of care distribution was: higher (39.4 %), moderate (30.6 %), and lower (30.0 %). Younger age (4–9 years) was positively associated with having access to care. Compared to children who had continuous and adequate private insurance, children who were never/intermittently insured or who had continuous and inadequate private insurance were less likely to have access. Compared to children who had continuous and adequate private insurance, there were lower odds of perceiving received care as higher/moderate versus lower quality among children who were never/intermittently insured or who had continuous and inadequate/adequate public insurance. Being in excellent/very good health and living in safe/supportive neighborhoods were positively associated with quality; non-white race/ethnicity and federal poverty level were negatively associated with quality. Assuring continuous, adequate insurance may positively impact health care access and quality.     

The effects of child-only insurance coverage and family coverage on health care access and use: recent findings among low-income children in California

OBJECTIVE: To compare the extent with which child-only and family coverage (child and parent insured) ensure health care access and use for low income children in California and discuss the policy implications of extending the State Children's Health Insurance Program (California's Healthy Families) to uninsured parents of child enrollees. DATA SOURCES/SETTING: We used secondary data from the 2001 California Health Interview Survey (CHIS), a representative telephone survey. STUDY DESIGN: We conducted a cross-sectional study of 5,521 public health insurance-eligible children and adolescents and their parents to examine the effects of insurance (family coverage, child-only coverage, and no coverage) on measures of health care access and utilization including emergency room visits and hospitalizations. DATA COLLECTION: We linked the CHIS adult, child, and adolescent datasets, including the adolescent insurance supplement. FINDINGS: Among the sampled children, 13 percent were uninsured as were 22 percent of their parents. Children without insurance coverage were more likely than children with child-only coverage to lack a usual source of care and to have decreased use of health care. Children with child-only coverage fared worse than those with family coverage on almost every access indicator, but service utilization was comparable. CONCLUSIONS: While extending public benefits to parents of children eligible for Healthy Families may not improve child health care utilization beyond the gains that would be obtained by exclusively insuring the children, family coverage would likely improve access to a regular source of care and private sector providers, and reduce perceived discrimination and breaks in coverage. These advantages should be considered by states that are weighing the benefits of expanding health insurance to parents.     

The contribution of insurance coverage and community resources to reducing racial/ethnic disparities in access to care

OBJECTIVE: To examine the extent to which health insurance coverage and available safety net resources reduced racial and ethnic disparities in access to care. DATA SOURCES: Nationally representative sample of 11,692 African American, 10,325 Hispanic, and 74,397 white persons. Nonelderly persons with public or private health insurance and those who were uninsured. STUDY DESIGN: Two cross-sectional surveys of households conducted during 1996-1997 and 1998-1999. DATA COLLECTION: Commonly used measures of access to and utilization of medical care were constructed for individuals. These measures include the following. (1) percent reporting unmet medical needs, (2) percent without a regular health care provider, and (3) no visit with a physician in the past year. FINDINGS: More than 6.5 percent of Hispanic and African Americans reported having unmet medical needs compared to less than 5.6 percent of white Americans. Hispanics were least likely to see the same doctor at their usual source of care (59 percent), compared to African Americans (66 percent) and whites (75 percent). Similarly, Hispanics were less likely than either African Americans or whites to have seen a doctor in the last year (65 percent compared to 76 percent or 79 percent). For Hispanics, more than 80 percent of the difference from whites was due to differences in measured characteristics (e.g., insurance coverage, income, and available safety net services). Differences in measured characteristics between African Americans and whites explained less than 80 percent of the access disparities. CONCLUSION: Lack of health insurance was the single most important factor in white-Hispanic differences for all three measures and for two of the white-African American differences. Income differences were the second most important factor, with one exception. Community characteristics generally were much less important, with one exception. The positive effects of insurance coverage in reducing disparities outweigh benefits of increasing physician charity care or access to emergency rooms.     

Forecasting the need for physicians in the United States: the Health Resources and Services Administration''s physician requirements model.

OBJECTIVE: The Health Resources and Services Administration's Bureau of Health Professions developed a demographic utilization-based model of physician specialty requirements to explore the consequences of a broad range of scenarios pertaining to the nation's health care delivery system on need for physicians. DATA SOURCE/STUDY SETTING: The model uses selected data primarily from the National Center for Health Statistics, the American Medical Association, and the U.S. Bureau of Census. Forecasts are national estimates. STUDY DESIGN: Current (1989) utilization rates for ambulatory and inpatient medical specialty services were obtained for the population according to age, gender, race/ethnicity, and insurance status. These rates are used to estimate specialty-specific total service utilization expressed in patient care minutes for future populations and converted to physician requirements by applying per-physician productivity estimates. DATA COLLECTION/EXTRACTION METHODS: Secondary data were analyzed and put into matrixes for use in the mainframe computer-based model. Several missing data points, e.g., for HMO-enrolled populations, were extrapolated from available data by the project's contractor. PRINCIPAL FINDINGS: The authors contend that the Bureau's demographic utilization model represents improvements over other data-driven methodologies that rely on staffing ratios and similar supply-determined bases for estimating requirements. The model's distinct utility rests in offering national-level physician specialty requirements forecasts.     

Class matters: U.S. versus U.K. measures of occupational disparities in access to health services and health status in the 2000 U.S. National Health Interview Survey.

To inform current debates over whether occupational class is causally linked to health inequities, the authors used data from the 2000 U.S. National Health Interview Survey to compare occupational disparities in access to health services, socioeconomic resources, and health status, using (1) the United Kingdom's new National Statistics Socio-Economic Classification (NS-SEC), premised on type of labor contract (salaried vs. hourly wage) and class position (employer, self-employed, supervisory and non-supervisory employee), and (2) the conventional U.S. occupational categories, premised on status and skill. Analyses included all working-age adults (age 25 to 64) for whom data on occupation and race/ethnicity were available (N = 22,500). Risk of inadequate access to health services, poverty, and low education were two times greater for persons in NS-SEC class 5 versus class 1, compared with blue-collar versus white-collar, and for both measures persons with the worst health status were in jobs that afforded the least access to health care. Controlling for earned income and workplace health insurance markedly reduced health service disparities, especially for the NS-SEC measure, thereby implying structural characteristics of jobs are causally relevant for resources and benefits necessary to address health inequities in the United States.     

Access to ambulatory care among noninstitutionalized, activity-limited persons 65 and over.

This study examined the impact of income and insurance type on ambulatory care contact use by persons 65 and over who expressed a limitation in their activity. This large group (39% of noninstitutionalized older persons in 1984) had significantly more health problems and ambulatory care contacts than persons not activity-limited. The only previous study on equity in use of physician services among elderly in poorer than average health found relatively little inequality of use due to income and insurance. This study came to the opposite conclusion. Activity-limited persons without Medicare private supplementary insurance, as well as those with supplementary insurance in the bottom and middle of the income distribution, had 15-32% fewer ambulatory care contacts than activity-limited persons with higher income and private supplementary insurance. Particularly striking were the declines in consumption among middle income persons relative to the reference group, indicating that the issue of equity in consumption of health services among older disabled persons affects a much broader group than only the poor and near-poor.     

Disparities in primary care for vulnerable children: the influence of multiple risk factors

OBJECTIVES: To analyze vulnerability as a profile of multiple risk factors for poor pediatric care based on race/ethnicity, poverty status, parent education, insurance, and language. Profiles are used to examine disparities in child/adolescent health status and primary care experience. DATA SOURCES: Cross-sectional data on 19,485 children/adolescents 0-19 years of age from the 2001 California Health Interview Survey. STUDY DESIGN: Multiple logistic regression models are used to examine risk profiles in relation to health status and three aspects of primary care: access (physician and dental visit; access surety), continuity (regular source of care), and comprehensiveness (i.e., health promotion counseling). PRINCIPAL FINDINGS: About 43 percent of (or 4.4 million) children in California have two or more risk factors (RF). Controlling for age and gender, more RFs is associated with poorer health status (i.e. percent reporting "excellent/very good" health: no RFs=81 percent, 1=71 percent, 2=57 percent, 3=45 percent, 4=35 percent, 5=28 percent, all p<.001). Controlling for health status, higher risk profiles is associated with poorer primary care access and continuity, but greater comprehensiveness of care. For example, higher risk profile children are less likely to have a regular source of care: one RF (prevalence ratio [PR]=0.92, confidence interval [CI]: 0.86-0.98), two (PR=0.77, CI: 0.69-0.84), three (PR=0.55, CI: 0.46-0.65), and four or more (PR=0.31, CI: 0.22-0.44), all p<.001. CONCLUSIONS: This study demonstrates a dose-response relationship of higher risk profiles with poorer child health status, access to, and continuity of primary care. Having gained access, however, adolescents with higher risk profiles are more likely to receive health promotion counseling. Higher profiles appear to be associated with greater barriers to accessing primary care for children in "fair or poor" health, suggesting that vulnerable children who have the greatest health care needs also have the greatest difficulty obtaining primary care.     

Reconsidering the effect of Medicaid on health care services use.

OBJECTIVE: Our research compares health care use by Medicaid beneficiaries with that of the uninsured and the privately insured to measure the program's effect on access to care. DATA SOURCES/STUDY SETTING: Data include the 1987 National Medical Expenditure Survey and the Survey of Income and Program Participation for 1984-1988. STUDY DESIGN: We predict annual use of ambulatory care and inpatient hospital care for Medicaid beneficiaries receiving AFDC cash assistance and compare it to what their use would be if uninsured or if covered by private insurance. Comparisons are based on multivariate models of health care use that control for demographic and economic characteristics and for health status. Our model distinguishes among Medicaid beneficiaries on the basis of eligibility to account for the poor health of beneficiaries in some eligibility groups. PRINCIPAL FINDINGS: AFDC Medicaid beneficiaries use considerably more ambulatory care and inpatient care than they would if they remained uninsured. Use among the AFDC Medicaid population is about the same as use among otherwise similar, privately insured persons. Use rates differ substantially among different Medicaid beneficiary groups, supporting the expectation that some beneficiary groups are in poor health. CONCLUSIONS: Although Medicaid has increased access to health care services for beneficiaries to rates now comparable to those for the privately insured population, because of lower cost sharing in Medicaid we would expect higher service use than we are finding. This suggests possible barriers to Medicaid patients in receiving the care they demand. Enrollment of less healthy individuals into some Medicaid beneficiary groups suggests that pooled purchasing arrangements that include Medicaid populations must be designed to ensure adequate access for the at-risk populations and, at the same time, to ensure that private employers do not opt out because of high community-rated premiums.     

Insurance coverage and access: implications for health policy.

Data are presented from a recent survey of the United States population comparing the characteristics and levels of access to medical care of persons under 65 years who have group or individual private health insurance, public health insurance, or no third-party coverage. The uninsured group appeared to fall between the privately insured and publicly insured groups on measures of social and economic status. Persons with publicly subsidized forms of insurance coverage utilized services at the highest rates, and uninsured persons used them at the lowest rates. Neither of these groups was as satisfied with the convenience or the quality of the care it obtained as the privately insured group. Implications of these findings for national health insurance and other health policy initiatives are discussed.     

The Canadian health care system: an overview

Although health care is a provincial responsibility in Canada, universal hospital insurance was fully adopted by 1961; universal medical insurance followed 10 years later. Each province enacted universal insurance after the federal government offered to pay 50% of provincial hospital and medical care costs. Hospital insurance had wide public and provider support but universal medical care insurance was opposed by organized medicine. The federal government soon realized that it had no control over total expenditures and no mechanisms for controlling costs. In 1977 it enacted Bill C-37 which limited total federal contributions and made those contributions independent of provincial health care expenditures so that increased costs had to be met by the provinces. Since private health care insurance for universal benefits is prohibited by the federal terms of reference for health insurance, the provinces must raise the money by taxes and (in some provinces) premiums. Although prohibited by the terms of reference of the universal program, some provinces have adopted hospital user fees and are allowing their physicians to bill patients in excess of provincial fee schedules. The 1980s have seen increased confrontations between the federal and provincial governments and between the provinces and their providers. The issues are cost containment and control of the system. The provinces have two broad options. The first is more private funding through private insurance and user fees. The proposed new Canada Health Act will probably prohibit such charges. A second option involves greater control and management of the system by the provinces; this has already occurred in Quebec. Greater control is vigorously opposed by physicians and hospitals. The Canadian solution to health insurance problems in the past has been moderation. Extreme moves in either direction would represent a break with tradition, but they may prove to be unavoidable.     

Access to usual source of care by race and income in ten urban areas

In terms of less access to private sources of care (as distinguished from hospital-public clinics) and longer travel time to usual source of care, poverty areas are at a disadvantage. Within the ten areas studied, the poor have less access than the nonpoor, with access differences even greater between the races than between income groups. Blacks generally have less access than whites when income differences are taken into account. Both the type of usual source of care and travel time appear to be related to differential utilizations of ambulatory care resources: persons reporting private sources of care and persons with shorter travel time to their usual source of care tend to make more physician visits in a year. Mechanisms for public financing of health care will not likely alleviate the problems of inaccessibility presented by poverty areas. It is in these areas of low access that public responsibility to organize and locate facilities will continue even after the advent of a fairly comprehensive payment mechanism for health care among the poor.Ms. Okada is Statistician and Mr. Sparer is Acting Director, Division of Health Services Evaluation, National Center for Health Services Research, Health Resources Administration, Department of Health, Education, and Welfare, Parklawn Building, Rockville, Maryland 20852.     

Alcohol,drug abuse,and mental health care for uninsured and insured adults

OBJECTIVE: To compare adults with different insurance coverage in care for alcohol, drug abuse, and mental health (ADM) problems. DATA SOURCES/STUDY SETTING: From a national telephone survey of 9,585 respondents. DESIGN: Follow-up of adult participants in the Community Tracking Study. DATA COLLECTION: Self-report survey of insurance plan (Medicare, Medicaid, unmanaged, fully, or partially managed private, or uninsured), ADM need, use of ADM services and treatments, and satisfaction with care in the last 12 months. PRINCIPAL METHODS: Logistic and linear regressions were used to compare persons by insurance type in ADM use. PRINCIPAL FINDINGS: The likelihood of ADM care was highest under Medicaid and lowest for the uninsured and those under Medicare. Perceived unmet need was highest for the uninsured and lowest under Medicare. Persons in fully rather than partially managed private plans tend to be more likely to have ADM care and ADM treatments given need. Satisfaction with care was high in public plans and low for the uninsured. CONCLUSIONS: The uninsured have the most problems with access to and quality of ADM care, relative to the somewhat comparable Medicaid population. Persons in fully managed plans had better rather than worse access and quality compared to partially managed plans, but findings are exploratory. Despite low ADM use, those with Medicare tend to be satisfied. Across plans, unmet need for ADM care was high, suggesting changes are needed in policy and practice.