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Biomedical subjects

N Halfon

Publications and source records attributed to N Halfon.

At least 37 records · Page 2Linked to original sources
PubMed1998

Community health monitoring: taking the pulse of America's children.

OBJECTIVE: To describe the development, content, enablers/barriers, and impact of child health reports in nine communities participating in the Robert Wood Johnson Foundation funded Child Health Initiative (1991-1996). METHODS: A qualitative, prospective, multiyear, longitudinal evaluation using a multiple case-study methodology. Three waves of structured in-person and telephone interviews of the project staff, community leaders, and key participants tracked the development of child health reports in all nine communities. A mailed survey of project directors was administered to assess accomplishments at the completion of the project. Content analysis of each community health report was conducted using different conceptual frameworks for health measurement and reporting. RESULTS: All communities succeeded in creating a report that contained a broad set of outcome indicators reflecting children's health and well-being. The process of creating these reports, their content, level of analysis, presentation formats, and dissemination varied across sites based on available resources, data and analysis capacity, and other political considerations. While commonly accepted outcome measures were used in most reports (e.g., infant mortality, teen births, immunization rates), process indicators, important for quality monitoring and community health improvement, were notably lacking. In each community the reports were credited with providing a more comprehensive and integrated view of the health needs of children. CONCLUSIONS: Additional conceptual and technical work is needed to improve the ability of community health reports to capture key indicators of interest. Community reports can serve an important role in building the consensus needed to create program and policy changes. Community reports may have additional utility in monitoring the impact of health systems change on population health. Community reports can also facilitate a shared learning process for the participants and the community, and can be a useful tool to advance a children's health policy agenda.

Child↗
PubMed1998

Evaluating community efforts to decategorize and integrate financing of children's health services.

Publicly funded categorical programs for children often differ in eligibility rules, allowable services, and criteria for provider participation, making it necessary for families to navigate through several programs to piece together care for their children. Recognizing these problems, the Robert Wood Johnson Foundation launched a national demonstration project in 1991 with the goal of decategorizing children's health services in nine communities. It was hoped that by releasing funds from categorical restrictions on their use, scarce public resources could be directed where they might have the greatest impact. However, the demonstration sites confronted a number of challenges in designing and implementing decategorization strategies: an absence of existing models and effective technical assistance; political hurdles in gaining cooperation from the multiple local agencies engaged in service provision; and difficulties in carrying out major programmatic changes when the health care system itself was rapidly being transformed. The proposition that decategorization holds promise as a tool for improving access to health care deserves further investigation.

Adolescent↗
PubMed1998

The use of formative evaluation to assess integrated services for children. The Robert Wood Johnson Foundation Child Health Initiative.

This article describes the use of formative evaluation in assessing the feasibility of implementing a new service integration effort. The Child Health Initiative, a nine-site, national demonstration project funded in 1991 by the Robert Wood Johnson Foundation, sought to implement systemic change through the creation of new mechanisms for spending service dollars more flexibly at the local site. The Child Health Initiative called for developing local child health-monitoring systems, a care coordination mechanism, and a program for decategorizing the myriad of restrictive categorical public programs serving children. Most demonstration communities experienced some degree of success in achieving the first two components, but none was able to implement decategorization during the 3- to 5-year funding period. Key lessons for evaluators include the need for (a) a flexible evaluation design that can sequentially adapt to changes in program implementation, (b) repeated longitudinal data collection measures to document changes over time, (c) avoidance of a premature focus on program outcomes, and (d) methods to establish attribution of outcomes.

Child↗
PubMed1998

Utilization of well-child care services for African-American infants in a low-income community: results of a randomized, controlled case management/home visitation intervention.

OBJECTIVE: To evaluate a case management/home visitation intervention to improve access to and utilization of well-child care (WCC) visits. STUDY DESIGN: Randomized, controlled trial with baseline and follow-up interview surveys. Mothers and infants in the intervention group were assigned to a case manager who made at least four home visits during the infant's first year of life. In addition, the case managers contacted clients by telephone and mail to see if they had kept their WCC appointments and to follow up on other issues. SAMPLE AND DATA COLLECTION: A population-based random sample of African-American mothers of newborns from South Central Los Angeles: 185 mothers in the intervention group and 180 in the control group completed both interview surveys. The principal outcome variable was number of WCC visits. Additional outcome variables included the child's type of insurance, the number of months with insurance coverage during the first year of life, age when first enrolled in Medi-Cal, age at the first WCC visit, usual source of WCC, travel time to the usual source of care, whether the child had a regular provider, and whether the child ever needed care but did not get it. RESULTS: There was little change in the overall distribution of number of WCC visits during the first year of life. Comparisons of the cumulative numbers of visits for each possible cutoff showed that children in the intervention group were more likely than children in the control group to have at least four visits (81% vs 70%). Because this split was identified empirically rather than through an antecedent hypothesis, we conducted a Smirnov test to account for multiple comparisons. This test showed a reduced level of significance. Other outcome variables did not show significant differences for the control and intervention groups. CONCLUSIONS: In light of the high expense of this intervention, our evaluation shows that our moderate-intensity case management and home visitation program is not an effective way to increase the number of WCC visits.

Black or African American↗
PubMed1998

Differences between child and parent reports of symptoms among Latino children with asthma.

OBJECTIVES: To determine, in a population of predominantly Latino children with asthma 6 to 18 years old, whether parent and child reports of asthma symptoms with exercise differ and to evaluate the validity of child and parent reports of symptoms. DESIGN: Data obtained from child and parent interviews; pulmonary function tests (forced vital capacity, forced expiratory volume in 1 second, forced expiratory flow25-75, peak expiratory flow), and observation of symptoms after exercise. SETTING: Three summer camps for minority children with asthma in Los Angeles County. PARTICIPANTS: A total of 97 children with asthma (78% Latino, 12% non-Latino White, 9% Other; 6 to 18 years of age) and their parents. INTERVENTION(S): None. PRIMARY OUTCOME MEASURES: Child and parent reports of cough and wheezing with exercise and pulmonary function tests before and after exercise. While at camp, children underwent spirometry after completing the self-administered survey. The pulmonary function tests were conducted and interpreted according to the pediatric specifications for spirometry, and results >80% of predicted, adjusted for gender, age, height, and race, were considered normal. Six peak expiratory flow rates (PEFR) by peak flow meter also were recorded by trained research assistants immediately before spirometry, and values >80% of predicted based on height were considered normal. To observe child symptoms with exercise, children participated in a relay running race of 200 feet followed by a swimming race of 300 feet. Research assistants measured heart rate and 6 PEFRs using ASSESS portable peak flow meters immediately before and after each exercise. A positive exercise challenge was defined as a 15% reduction in mean PEFR and/or observed asthma symptoms (cough, wheezing, chest pain, asthma attack). RESULTS: Of the children, 18% reported never having a cough when they exercised, 46% reported having it occasionally when they exercised, and 36% reported having it quite often or always when they exercised. For wheezing, 20% of children reported never having wheezing when they exercised, 35% having it occasionally when they exercised, and 45% having it quite often or always when they exercised. Parents reported fewer symptoms than did their children. Of the parents, 34% reported that their children did not have cough with exercise, 37% reported few to some days, and 29% reported most days or every day. Forty-seven percent of parents reported that their child did not wheeze with exercise in the last 2 months, 35% reported wheezing on a few days to some days, and 17% reported wheezing most days to every day. Parent and child reports of cough or wheezing after exercise correlated mildly with each other (parent/child cough r = 0. 23; kappa = 0.03; parent/child wheezing r = 0.21; kappa = 0.14). Children were more likely to report cough: 59 of 71 (83%) of children versus 44 of 71 (62%) of parents. The 22 children who reported cough when their parents did not account for most of the disagreement between parents and children. Children were more likely than were their parents to report wheezing; 55 of 69 (80%) children versus 36 of 69 (52%) parents reported that the child wheezed. The 24 children who reported wheezing when their parents did not account for most of the disagreement between parents and children. Forty-seven percent of the children had a value <80% of predicted for at least one of the four spirometry tests; 29% of mean baseline PEFRs were <80% of predicted. Overall, 86% of the children met one or more of the following: any percent of predicted pulmonary function tests <80% or any symptom or PEFR reduction of 15% after exercise, or other occurrence of nonexercise symptoms during camp. Almost all child reports of cough and wheezing correlated significantly with the criterion validity criteria. For example, child reports of wheezing were, as expected, correlated negatively with the percent of predicted FEV1 (r = -0.28) and correlated positive

Adolescent↗
PubMed1998

Prevalence and impact of disabling chronic conditions in childhood.

OBJECTIVES: This study provides a current national profile of the prevalence and impact of chronic conditions causing childhood disability. Disability is defined as a long-term reduction in ability to conduct social role activities, such as school or play, because of a chronic physical or mental condition. METHODS: A cross-sectional descriptive analysis was performed on data from 99513 children younger than 18 years who were included in the 1992-1994 National Health Interview Survey. The response rate exceeded 93% during each year. RESULTS: A significant proportion of children, estimated at 6.5% of all US children, experienced some degree of disability. The most common causes of childhood disability were respiratory diseases and mental impairments. Prevalence of disability was higher for older children, boys, and children from low-income and single-parent families. Childhood disability is estimated to result in 66 million restricted activity days annually, including 24 million days lost from school. Furthermore, disability in childhood results in an added 26 million physician contacts and 5 million hospital days annually. CONCLUSIONS: Childhood disability has profound impacts on children, the education system, and the health care system.

Absenteeism↗
PubMed1998

Improving the quality of healthcare for children: implementing the results of the AHSR research agenda conference.

OBJECTIVE: To describe the rationale, development, content, and results of the AHSR-sponsored conference on developing a research agenda focused on improving the quality of care for children. DATA SOURCES AND METHODS: Planning documents, background papers, and conference proceedings. PRINCIPAL FINDINGS: The conference developed the research agenda focused on (1) monitoring the health of children; (2) evaluating the efficacy and effectiveness of health services for children; (3) assessing the quality of healthcare provided to children; (4) improving the quality of healthcare within health systems; (5) assessing the performance of community systems for children; (6) exploring the impact of different financial incentives on the provision of pediatric healthcare; and (7) developing and disseminating clinical practice guidelines and other information to physicians, families, and consumers. Specific issues and research questions in each area are also presented. Strategies for implementing the research agenda are presented and include: (1) expanding the child health services research workforce; (2) developing child healthcare quality improvement research centers; (3) conducting research in specific high-priority areas; (4) focusing research on improving the health of vulnerable populations; (5) improving child health data and collection systems at the national level; (6) developing better community health monitoring for children; (7) building and supporting research networks and a consortium of research users; and (8) developing a coordinated interagency federal effort to advance this agenda and to provide accountability for its completion. CONCLUSION: The proposed research agenda should be a national priority so that all Americans can be assured that children are receiving the best quality of care that the United States can provide.

Child↗
PubMed1998

Overview of issues in improving quality of care for children.

OBJECTIVE: To provide a framework for a research agenda-setting conference on quality of care for children. DATA SOURCES/STUDY SETTING: Literature review. CONCLUSIONS: Research on quality of care for children has lagged behind its counterpart for adults. Defining key issues and questions in seven topic areas-the health of children; the efficacy and effectiveness of health services for children; assessing quality of care; improving quality of care within health services delivery systems; assessing and improving quality at the community level; getting financial incentives right; and disseminating information about the results of research investigations-will facilitate the development of an effective research strategy. Ultimately, enhanced information in these areas will lead to improvements in the processes and outcomes of care for children.

Child↗
PubMed1998

Assessing the performance of community systems for children.

OBJECTIVE: To present a framework for measuring the quality of community systems for children, based on key attributes of systems performance for children's services. We present a research agenda for refining the model, evaluating indicators across the performance domains identified, developing normative standards for performance, and assessing the empirical basis for performance criteria. PRINCIPAL FINDINGS: Systems performance can be measured. A systems approach to evaluating community systems for children needs to incorporate the multilevel service delivery networks, programs, and systems of care for children. A model of community systems performance for children includes key dimensions of structure, financing, and accountability. Attributes within these dimensions serve as indicators that communities can use to evaluate systems quality. Performance standards can be based on the evidence from field demonstrations as well as from normative assessments. RECOMMENDATIONS: The model of community systems performance should be refined and developed using empirical findings of analyses of children's systems. A set of indicators that capture vital aspects of performance and that are relevant, scientifically valid, and feasible should be developed and tested in field studies. Once indicators are evaluated for use in performance monitoring, communities will be able to implement performance monitoring.

Child↗
PubMed1997

Medicaid enrollment and health services access by Latino children in inner-city Los Angeles.

OBJECTIVES: To understand the role of parental immigration status on Medicaid enrollment and access to health services for young Latino children. DESIGN: A cross-sectional household survey of the parents of inner-city Latino children. SETTING: South Central and East Los Angeles, Calif, 1992. POPULATION: Children 12 to 36 months old and their parents from 817 Latino families. MAIN OUTCOME VARIABLES: Continuous Medicaid enrollment, continuity of care, deferral of care, and number of visits. METHODS: Univariate analysis, logistic and linear regression by demographic and socioeconomic characteristics, residency status, and language use. RESULTS: Children were primarily born in the United States (96%), but most parents were not citizens (80%). Only 40.0% of eligible children had continuous Medicaid coverage since birth, 18.6% had never been insured, and 20.7% had received episodic Medicaid coverage. Continuous Medicaid coverage was negatively associated with either the caregiver (odds ratio [OR],0.32; 95% confidence interval [CI], 0.19-0.56) or their partner (OR=0.33, 95% CI =0.20-0.55) working. Residency status, language preference, and length of US residency were not associated with continuous Medicaid enrollment. Insurance coverage was associated with more physician visits, greater continuity of care, and fewer deferrals of care. CONCLUSION: While most (84%) young Latino children in inner-city Los Angeles were eligible for Medicaid, a substantial proportion (39.3%) have episodic or no coverage. Insurance status and provider type were more consistently associated with access rather than residency and language preference. In the aftermath of California's Proposition 187 and federal welfare reform, insurance status and access are likely to worsen for these young children unless the wave of antiimmigration sentiments is held in check.

Child↗
PubMed1997

Integrating children's health services: evaluation of a national demonstration project.

OBJECTIVES: Increasingly, the public and private sectors are turning to "service integration" efforts to reduce, if not eliminate, barriers to needed care created by categorical programs. In 1991, the Robert Wood Johnson Foundation established a new national demonstration project, called the Child Health Initiative, intended to test the feasibility of developing mechanisms at the community level to coordinate the delivery of health services and to pay for those services through a flexible pool of previously categorical funds. This article presents the findings of an independent evaluation of the Child Health Initiative. METHOD: The evaluation utilized a combination of qualitative methods to assess and describe the experiences of the communities as they developed and implemented integrated health services. It used a repeated measures design involving two site visits and interim telephone interviews, as well as review of documents. RESULTS: Overall, the demonstration project achieved mixed success. Both care coordination and the production of community health report cards were found to be achievable within the relatively short life of the foundation grant. However, many sites experienced significant delays in the production of report cards and implementing care coordination plans because the sites largely did not benefit from the successful models already in existence. Little clear progress was made in implementing the decategorization component of the project. Sites experienced difficulties due to lack of previous experience with this new undertaking, the inability to secure active cooperation from local, state, and federal agencies, the relatively short duration of the project, and other factors. CONCLUSIONS: A number of lessons were learned from this project that may be useful in future decategorization experiments, including (1) a clear understanding of the concept and its applications among all parties is essential, (2) high-level political commitments to the effort are needed between all levels of government, (3) adequate technical assistance should be provided to surmount technical considerations in establishing a workable approach to decategorization, and (4) decategorization and service integration efforts should focus on both the health and social sectors.

Child↗
PubMed1997

Social HMOs and other capitated arrangements for children with special health care needs.

OBJECTIVE: Children with special health care needs are increasingly enrolling in managed care arrangements. However, existing managed care organizations, including traditional HMOs, are often poorly suited for caring for this population. In the adult health care area, new managed care entities, called Social HMOs (S/HMO) and Programs for the All-inclusive Care for the Elderly (PACE), have been created to integrate health and health-related services for chronically ill and disabled adults. We describe these models and assess their potential for serving children with special health care needs. METHOD: We reviewed the literature on managed care for children with special health care needs and evaluation findings from the S/HMO and PACE models for the elderly. RESULTS: Evaluations of the S/HMO and PACE models have yielded mixed findings. Some of the more positive accomplishments include lower use and expenditures for long-term care services compared to other demonstration projects, greater integration of primary care physicians in decision making concerning long-term care, and improved management of transitions between care levels. On the negative side, start-up has been slow, prospective members have been hesitant to enroll, intermittent and sometimes frequent operating deficits have emerged, no discernible positive effects on health or social outcomes are apparent, and no significant overall savings have emerged. CONCLUSIONS: With mixed results so far, caution is required in applying these or similar models for vulnerable child populations. However, given the inadequacies of traditional managed care for this population, we believe experimentation with new models of care that integrate health and health-related services is important. Such experimentation should be fostered only to the extent that the models are carefully designed and then implemented in a manner that protects the interests of children with special health care needs.

Aged↗
PubMed1997

Foster care: an update.

OBJECTIVE: To inform child and adolescent psychiatrists about the almost 500,000 children now residing in the American foster care system. This overview surveys the pediatric, developmental, and psychiatric needs of these children. METHOD: Child and adolescent psychiatrists, pediatricians, a child welfare researcher, a social worker, and a psychologist developed a consensus paper from their experience with child welfare and a review of the literature in their respective fields. RESULTS: Being in foster care is a defining experience in these children's lives. They are at risk in myriad ways: for instance, being poor, having chronic health deficits, experiencing the trauma of abuse and neglect, and suffering from a gamut of emotional challenges. Evolutionary developments in foster care such as therapeutic foster homes, kinship care, and changes in Medicaid funding will continue to alter the system. CONCLUSIONS: Foster children are a huge reservoir of unmet pediatric and psychiatric needs; research on them is spotty at best. It is hoped that child and adolescent psychiatrists will meet the challenges these youngsters present and will advocate for them.

Adolescent↗
PubMed1997

Geographic distribution of pediatricians in the United States: an analysis of the fifty states and Washington, DC.

OBJECTIVES: To determine current geographic distribution of pediatricians in the United States, to assess the changes in the geographic distribution of pediatricians between 1982 and 1992, and to identify factors associated with the distribution of pediatricians among the 50 states. METHODS: A data set was constructed using several published data sources including the American Medical Association Physician Masterfile as the principal source for physician information. The pediatrician-to-child population ratio (PCPR, the number of pediatricians per 100 000 people under 18 years of age) was calculated to compare the distribution of pediatricians among states and the distributional changes between 1982 and 1992. Lorenz curves and Gini indices were used to describe distributions and to compare distributions across time periods. Linear regression analysis was performed to assess the relationship between PCPR (dependent variable) with 9 predictor variables. RESULTS: Between 1982 and 1992, there was a 5.4% increase in the United States (US) child population and a 46.1% increase in the number of pediatricians in patient care. During that time period, the PCPR increased by 38.6% from 35.1 per 100 000 to 48.6 per 100 000. There was a more than 4-fold difference in the PCPRs of the highest state (Maryland, 84.3) and the lowest state (Idaho, 18.5) in 1992. The PCPR increased in all 50 states, but varied from a 4.1% increase in Wyoming to a 63.4% increase in Massachusetts. The Lorenz curve showed that pediatricians were less evenly distributed than all physicians, but more evenly distributed than pediatric cardiologists. Between 1982 to 1992 the Gini index decreased 9.8% for all physicians and 10.2% for pediatric cardiologists, but only 1. 9% for pediatricians. Since a decrease in the Gini index signifies better overall distribution, these changes are relatively modest for pediatricians as a whole, especially when compared to other physicians. Regression analysis showed that a higher PCPR was associated with a greater number of residency positions per 100 000 children and with the per capita income of the state (R = .93). CONCLUSIONS: The distribution of pediatricians does not parallel the distribution of the child population in the US, nor has this distribution changed substantially in spite of a 38.6% increase in the PCPR. Pediatricians tend to concentrate in states with high per capita income and in states with a larger number of residency training positions. The failure of market forces to improve the geographic distribution may require manpower policy changes designed to improve distribution in underrepresented states. The uncertain impact of market changes due to increased use of managed care could affect distributional requirements of pediatricians in the future.

Cardiology↗
PubMed1996

The impact of the vaccine for children's program on child immunization delivery. A policy analysis.

The Vaccine for Children (VFC) program was proposed as part of President Clinton's 1993 Childhood Immunization Initiative. It is a federal vaccine-financing program that pays for and distributes free vaccine to providers serving 4 classes of children: (1) Medicaid insured, (2) uninsured, (3) children with private insurance that does not cover immunizations, and (4) American Indian and Alaskan Native children. Despite support from major professional organizations, the VFC program has come under intense criticism, with critics arguing that the cost of vaccines is not a major barrier to immunization receipt. In this article, we analyze how the VFC program will influence the receipt of immunizations by children under different child health care delivery and financing systems. We conclude that the impact of VFC on access to immunizations will be uneven; however, VFC could significantly improve access to immunizations for the over one third of US children who are either uninsured or covered under Medicaid fee for service. With further augmentations and refinements, VFC could be fashioned to overcome significant and persistent barriers to the timely delivery of immunizations in our disjointed child health financing and delivery systems.

Child↗
PubMed1996

Knowledge of the childhood immunization schedule and of contraindications to vaccinate by private and public providers in Los Angeles.

BACKGROUND: Missed opportunities to vaccinate occur commonly and contribute to the underimmunization of young children. They are related to provider knowledge of the immunization schedule and contraindications to vaccination. METHODS: We surveyed private physicians (n = 50) and public health department physicians and nurses (n = 47). The questionnaire presented two sets of clinical scenarios in which they had to assess what immunizations were due and assess whether there were any contraindications to vaccination. RESULTS: The mean percent correct responses on the immunization schedule questions was 64% (sd = 3.6%) for the private physicians, 71% (SD = 4.7%) for the public physicians and 78% (SD = 2.8%) for the public nurses (P = 0.04). The mean percent correct responses on the contraindications to vaccinate questions was 73% (SD = 5.4%) for public physicians, 58% (SD = 3.3%) for private physicians, and 55% (SD = 4.7%) for public health nurses (P = 0.02). CONCLUSIONS: Our survey shows that providers in the public and private sectors have important deficits in their knowledge of the immunization schedule and the appropriate contraindications to vaccinate which might lead to missed opportunities to vaccinate and low immunization coverage.

Child↗
PubMed1996

Routine emergency department use for sick care by children in the United States.

BACKGROUND: The use of the emergency departments as a regular source of sick care has been increasing, despite the fact that it is costly and is often an inappropriate source of care. This study examines factors associated with routine use of emergency departments by using a national sample of US children. METHODS: Data from the 1988 National Health Interview Survey on Child Health, a nationally representative sample of 17710 children younger than 18 years, was linked to country-level health resource data from the Area Resource File. Bivariate and multivariate analyses were used to assess the association between children's use of emergency departments as their usual sources of sick care and predisposing need and enabling characteristics of the families, as well as availability of health resources in their communities. RESULTS: In 1988 3.4% or approximately 2 million US children younger than 18 years were reported to use emergency departments as their usual sources of sick care. Significant demographic risk factors for reporting an emergency department as a usual source of sick care included black versus white race (odds ratio [OR], 2.08), single-parent versus two-parent families (OR, 1.53), mothers with less than a high school education versus those with high school or more (OR, 1.76), poor versus nonpoor families (OR, 1.76), and living in an urban versus suburban setting (OR, 1.38). Specific indicators of need, such as recurrent health conditions (asthma, tonsillitis, headaches, and febrile seizures), were not associated with routine use of emergency departments for sick care. Furthermore, health insurance status and specifically Medicaid coverage had no association with use of the emergency department as a usual source of sick care. Compared with children who receive well child care in private physicians' offices or health maintenance organizations, children whose sources of well child care were neighborhood health centers were more likely to report emergency departments for sick care (OR, 2.01). Children residing in counties where the supply of primary care physicians was in the top quintile had half the odds (OR, 0.50) of reporting emergency departments as usual sources of sick care. CONCLUSIONS: Reliance on hospital emergency departments for routine sick care is strongly associated with demographic and social characteristics of the child and family, the type and source of available well child care, and the supply of primary care physicians. Because health insurance status was not a significant predictor of use, public policies aimed at reducing the use of emergency departments by children will need to address other factors. These include the organizational characteristics and responsiveness of the health care system and the motivation of families for routine use of hospital emergency departments.

Adolescent↗