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Biomedical subjects

G L Freed

Publications and source records attributed to G L Freed.

At least 19 recordsLinked to original sources
PubMed2001

Hepatitis B vaccination practices in hospital newborn nurseries before and after changes in vaccination recommendations.

BACKGROUND: Routine use of hepatitis B vaccine for low-risk newborns was suspended on July 7, 1999, because of concern about the potential risk of thimerosal, a mercury-containing vaccine preservative. Reinstatement of the birth dose was recommended when a thimerosal-free vaccine became available. OBJECTIVE: To explore changes in hepatitis B vaccination practices for newborns related to the revised recommendations for low-risk infants (in this study, the terms newborn and infant are used interchangeably). DESIGN: A telephone survey of a random sample of 1000 US hospitals. PARTICIPANTS: Nurse managers, nursery directors, and staff nurses of the newborn nurseries. MAIN OUTCOME MEASURES: Nursery vaccination practices before and after July 7, 1999, and the availability and use of thimerosal-free vaccine. RESULTS: Interviews were conducted with 773 (87%) of 886 eligible hospitals. Before July 7, 1999, 78% of the hospitals reported vaccination practices that were consistent with recommendations at that time, although only 47% vaccinated all low-risk infants at birth. After July 7, 1999, almost all hospitals discontinued vaccination of low-risk infants, in accordance with the recommendation change; however, there was a 6-fold increase in the number of hospitals that were not vaccinating all high-risk infants. After the introduction of thimerosal-free vaccine, only 39% of the hospitals reported vaccinating all low-risk infants. CONCLUSIONS: Most hospital nurseries altered their newborn hepatitis B vaccination practices consistent with changes in national recommendations. However, unintended consequences included the failure of some hospitals to continue vaccinating all high-risk infants and the delay in reintroducing vaccination for low-risk newborns after the introduction of a thimerosal-free vaccine. Assessments of the appropriateness of this country's response to the threat of thimerosal in vaccines should consider these findings.

Data Collection↗
PubMed2000

Measuring immunization coverage.

OBJECTIVE: Information about immunization coverage comes from five major sources: the National Immunization Survey, the National Health Interview Survey, retrospective school-entry surveys, the Health Plan Employer Data and Information Set (HEDIS) measures reported by managed care plans, and assessments performed on clinics and private practices. In this article, we describe the methodology of the major surveys, discuss technical and policy issues in measuring immunization coverage, and identify issues that must be addressed to harmonize immunization rates calculated from different sources. METHODS AND TOPICS: We describe the (1) design and methodology of the five major sources of immunization coverage assessments, (2) issues and controversies in measuring immunization coverage, and (3) preliminary efforts to harmonize calculation of immunization coverage. Technical and policy issues involve dose and interval requirements, which vaccines are included in the series-completion calculations, and who is excluded from each method of calculation. CONCLUSIONS: The purpose of measuring up-to-date immunization coverage determines the way that it is measured. The tension between measuring immunization coverage to monitor population protection against disease and measuring immunization coverage to determine how well the health care delivery system is working leads to different ways of selecting a sample and reporting coverage. These differences create confusion for the public policymakers who try to identify problems and to set priorities for immunization efforts. Although some unavoidable differences may occur because of differences in purpose of the measurement, greater harmonization is possible.

Centers for Disease Control and Prevention, U.S.↗
PubMed2000

State-level perspectives on immunization policies, practices, and program financing in the 1990s.

This article reports on a series of structured interviews with immunization program officials in all 50 states regarding the effects of changes in federal policies and funding in the 1990s on the goals, priorities, and activities of state immunization programs. The purchase of vaccines is a major component of all state immunization programs. The Vaccines for Children (VFC) program, implemented in 1994, has become the primary source of vaccine purchase support in almost all states. A concern of many state immunization programs is their ability to ensure that vaccines are available to children who are not VFC eligible.State immunization programs also are involved in a myriad of activities necessary to ensure that children are adequately and appropriately immunized (e.g. , vaccine administration, outreach to parents). Federal funding to support these activities increased significantly during the mid-1990s, but was substantially reduced beginning in 1997. Because of these funding decreases, most states had to reduce the scale and scope of their immunization activities.State-level funding support for immunization programs varies, with state governments more likely to support vaccine purchase than immunization activities. Immunization will never be completed. Along with each new birth cohort, changes to the primary immunization schedule (i.e., addition of new vaccines and expansion of existing recommendations to encompass broader target groups) create ongoing needs for vaccine purchase and other immunization activities. Long-term immunization planning must reflect these continually expanding needs.

Centers for Disease Control and Prevention, U.S.↗
PubMed2000

Pediatrician and family physician prescription of selective serotonin reuptake inhibitors.

OBJECTIVES: Selective serotonin reuptake inhibitor (SSRI) prescriptions for children and adolescents have increased greatly in recent years despite a paucity of demonstrated safety and efficacy data and a lack of clear guidelines for use. Our study sought to describe family physician and pediatrician SSRI prescribing patterns for children and adolescents, identify influences on SSRI prescription variations, and describe the use of SSRI within the overall management of depression and other mental disorders in primary care. DESIGN: A survey was mailed to all 596 active North Carolina general pediatricians and a random sample of 557 family physicians in primary care practice. Family physicians who did not see children in their practice were excluded. The survey instrument consisted of a 4-page questionnaire. Survey items included physician demographics, practice characteristics, general management, volume of pediatric patients with depressive symptoms, prescription of SSRIs for depression and other diagnoses, and potential influences on SSRI prescribing practices. The main outcomes were self-reported physician prescription of SSRIs for children and adolescents. Results were analyzed using chi(2) comparisons and logistic regression. RESULTS: The overall response rate was 66% (55% family physicians and 76% pediatricians). Of the physicians, 72% had prescribed an SSRI for a child or adolescent. Depression was the most common reason for prescribing an SSRI; over two thirds of respondents had prescribed an SSRI for depression in a child 18 years of age or younger. Over half of the physicians reported they had prescribed an SSRI for a diagnosis other than depression in a child 18 years of age or younger. Attention-deficit/hyperactivity disorder was the most frequent use cited other than depression, followed by obsessive-compulsive disorder, aggression, eating disorders, and enuresis. Primary care physicians prescribed SSRIs for adolescents more commonly than for younger children. Only 6% of the respondents had ever prescribed an SSRI for a child younger than 6 years of age. In terms of SSRI prescriptions written for depression in the last 6 months, 32% of the physicians had recently prescribed SSRIs for adolescent patients and 6% for patients younger than 12 years of age. Family physicians were more likely than pediatricians to have recently prescribed SSRIs for adolescent patients (41% vs 26%), but there was no difference in recent SSRI prescriptions for children <12 years of age by physician specialty (4% vs 6%). Prescription of SSRIs was not associated with decreased use of counseling for treatment of depression, but prescription of SSRIs was associated with decreased use of referrals (63% vs 74%). There was no difference in the use of counseling between family physicians and pediatricians (61% vs 59%). However, pediatricians were more likely to use referrals in their usual approach to depression (77% vs 48%) compared with family physicians. More family physicians had prescribed SSRIs for pediatric patients compared with pediatricians (91% vs 58%), and more family physicians had prescribed SSRIs in combination with other psychotropic medications (54% vs 31%). For the majority of respondents, SSRI prescriptions constituted most of the medications used to treat childhood depression (75% of family physicians vs 61% of pediatricians). Family physicians were more likely to report a belief in the safety (63% vs 48%) and effectiveness (40% vs 32%) of SSRIs. Only 8% of physicians reported adequate training in the treatment of childhood depression and just 16% were comfortable with the treatment of depression. There were no specialty differences in training for the treatment of childhood depression; however, more family physicians than pediatricians agreed that they were comfortable with the management of childhood depression (22% vs 11%). (ABSTRACT TRUNCATED)

Adolescent↗
PubMed2000

Primary care role in the management of childhood depression: a comparison of pediatricians and family physicians.

OBJECTIVE: To provide a self-described assessment of pediatricians' and family physicians' management of childhood depression. DESIGN: Mail survey of 595 general pediatricians and 557 family physicians in North Carolina. RESULTS: The response rate was 66%. Most primary care physicians used referral (65%) and counseling (61%) for management of childhood depression. Family physicians used medications more commonly (18% vs 9%), and pediatricians referred patients more commonly (77% vs 48%). In logistic regression analysis, physicians comfortable with management of depression (odds ratio [OR], 4.8: 2.7-8.4), physicians who believed that antidepressants are more effective than counseling (OR, 2.6: 1.4-4.8), and family physicians (OR, 2.2: 1.9-4.1) were more likely to have used medications for childhood depression. CONCLUSIONS: Most primary care physicians refer pediatric patients with depression; however, practice patterns vary by specialty and other factors. Future studies must consider the role of primary care and evaluate how interspecialty variations affect costs and outcomes of childhood depression.

Adult↗
PubMed1999

Impact of North Carolina's universal vaccine purchase program by children's insurance status.

OBJECTIVE: To examine the impact of a new universal purchase vaccine program on immunization rates of children with different types of insurance. DESIGN: Ecologic study using parent telephone interviews, medical chart abstraction in sites of outpatient care, and insurance verification with Medicaid and private insurers. SETTING: State of North Carolina. PARTICIPANTS: Of a random birth certificate sample of 4385 children born in North Carolina during 1994 and 1995, 507 were excluded. A total of 2767 children had completed parent interviews; 95% of those had medical chart abstraction and insurance data. MAIN OUTCOME MEASURES: Immunization rates at each month during the first 2 years of age, site of delivery for immunizations and well-child visits, and insurance status. RESULTS: In month-by-month comparisons, children born in 1995 had immunization rates 4% to 10% higher than their 1994 counterparts. By 24 months of age, 84% of the 1995 cohort had completed the primary immunization series, compared with 79% of the 1994 cohort (P<.001). In all insurance subgroups, 1995 immunization rates were higher than 1994 rates. The largest increases occurred among privately insured children with no well-child coverage, children who had periods of being uninsured, and children enrolled in Medicaid exclusively or with private insurance. More children in the 1995 cohort received immunizations in the private sector. CONCLUSIONS: Implementation of North Carolina's universal purchase program was associated with improved immunization rates, especially for children with inadequate insurance for well-child care. However, insurance status still influences the ability of children to receive immunizations on schedule.

Adolescent↗
PubMed1999

Parental knowledge, attitudes, and demand regarding a vaccine to prevent varicella.

BACKGROUND: Maintenance of high immunization rates is challenged by frequent changes to the recommended immunization schedule. This study assessed parent-reported knowledge of, attitudes about, and demand for a new vaccine against varicella. METHODS: Six months following licensure of the varicella vaccine, a cross-sectional study was conducted by mailed survey among a sample of parents of 23- to 35-month-old children. Effective response rate was 65%. RESULTS: Three quarters of parents had heard about the vaccine to prevent varicella. The lay media was the most frequently mentioned source of information. Thirteen percent of parents had already obtained the vaccine for their child, another quarter planned to get it, and one half were undecided. The most frequently cited factor influencing parents who had obtained or intended to obtain the vaccine was their doctor's recommendation. For those undecided or not inclined to get the vaccine, insufficient information about the vaccine was the most frequently listed factor. CONCLUSION: Publicizing a new vaccine through the media may be effective in raising public awareness, but detailed information about the vaccine and the recommendation of providers is still important in a parent's decision about the vaccine for their child.

Adult↗
PubMed1999

Influences on the receipt of well-child visits in the first two years of life.

OBJECTIVE: To determine demographic and health care system factors associated with children receiving an adequate number of well-child visits (WCVs). METHODS: Information on 4385 children and their families was obtained via birth certificates, parent interviews, chart review of outpatient sites of care, and insurance records. RESULTS: Only 77% of children received at least five WCVs by age 2. In regression analysis, the factors most strongly associated with children's total number of WCVs were delay in the initiation of prenatal care (odds ratio = 0.6) and receipt of all outpatient care in private physician offices (odds ratio = 4.2 to 5.6). Having an adequate number of WCVs was associated with being up to date for immunizations. CONCLUSIONS: Children of mothers who delay prenatal care are at high risk for not receiving adequate numbers of WCVs. Recognition of this marker can allow for targeted interventions that aim to ensure that children receive appropriate preventive care.

Adolescent↗
PubMed1998

Vaccine-associated liability risk and provider immunization practices.

OBJECTIVE: To explore the effect of concern about vaccine-associated malpractice litigation on provider immunization practices and attitudes. DESIGN: A cross-sectional mail survey. PARTICIPANTS: One thousand one hundred sixty-five pediatricians and 1849 family physicians. MAIN OUTCOME MEASURES: Physicians' perceptions of the legal and financial risks of providing immunizations and of the liability protection afforded by state programs and their current immunization practices. RESULTS: The response rate was 72% for pediatricians and 63% for family physicians. Overall, less than 30% of the respondents believed that federal and state programs protect them against vaccine-related lawsuits, with pediatricians more likely to believe so (32% vs 21%, P < .0001). Pediatricians were also more likely than family physicians to believe that the diphtheria, tetanus, and pertussis vaccine could be administered safely to children with a family history of seizures, a minor respiratory tract illness, or a previous local reaction to the vaccine. Liability issues were not significantly associated with any of the outcome variables, except that those physicians who believed that the whole-cell diphtheria, tetanus, and pertussis vaccine increased their risk for lawsuits were less likely to indicate that the diphtheria, tetanus, and pertussis vaccine was safe for children with a family history of seizures (P < .001). CONCLUSIONS: Liability-related variables were not independently associated with most immunization behaviors examined. This raises the question as to whether physicians cite liability as a reason for not immunizing children with acute and chronic illnesses, when their concerns are actually otherwise. These data suggest that educational efforts focused on liability issues alone will have little effect on inappropriate delaying of immunization for these children. Rather, education is needed regarding inappropriate contraindications themselves.

Adult↗
PubMed1998

Use of public immunization services after initiation of a universal vaccine purchase program.

OBJECTIVE: To explore the reasons why North Carolina families continue to use public immunization services 2 years after implementation of a universal vaccine purchase program, a state program intended to eliminate financial barriers to immunization in private physicians' offices. METHODS: In-person interviews were conducted in 11 local public health departments in North Carolina. PARTICIPANTS: Consecutive sample of 64 adults accompanying children aged 2 years or younger presenting for immunization services. MAIN OUTCOME MEASURES: (1) Reasons for seeking immunization at the health department and (2) history of immunization from private physicians. RESULTS: Two thirds of children obtained immunizations at the health department because of cost, including two thirds of children enrolled in Medicaid. Only 33% of children received well-child care from a private physician; for more than half of this group, the parents cited cost as the reason for using the health department, even though their physician was participating in the state universal purchase program. Of the 8 parents who told their child's private physician that they could not afford immunizations, none was told that the vaccine administration fee would be waived. CONCLUSIONS: Even though North Carolina's universal vaccine purchase program had been in effect for more than 2 years, a substantial number of children still received care from a private physician but used the health department for immunizations because of cost. These results indicate a need to explore additional strategies to preserve children's "medical homes."

Adult↗
PubMed1998

[Hepatitis B vaccination: knowledge and acceptance by Swiss physicians].

Difficulties with the acceptance of immunization recommendations by physicians have been documented. A recommendation for universal hepatitis B vaccination was published in 1998 for Switzerland. We conducted a qualitative study of pediatricians and family physicians in the fall of 1996 with eight focus groups stratified by region of the country and medical specialty. Sixty-two physicians participated. Most participants felt that universal hepatitis B immunization would be useful. Pediatricians in the French-speaking part of the country were more willing to implement such a recommendation, while family physicians in the German-speaking regions were least willing. Before supporting universal hepatitis B immunization, physicians stated that they need more information about the epidemiology of the infection, the effectiveness and safety of the vaccine, and the perceived high cost of an immunization program. Participants felt that two injections per visit was the maximum tolerable for infants and young children. Many preferred to immunize older children or adolescents against hepatitis B, both because fewer injections are currently recommended at that age and because adolescence is a developmentally appropriate age to address sexuality and drug abuse. Physicians expected the population to be reluctant to accept universal hepatitis B vaccination, partly because of a lack of understanding of the disease and partly because of a feeling that children already receive more than enough immunizations. While the general sentiment for a universal hepatitis B immunization recommendation in Switzerland seems to be positive among physicians, concerns regarding its implementation linger. It remains to be seen how hepatitis B will be perceived in the population, and how willing parents and adolescents will be to get their children and themselves vaccinated. Helping physicians to understand the importance of this measure, in addition to convincing them to immunize their patients, will be an important first step towards achieving sufficient hepatitis B immunization coverage.

Adolescent↗
PubMed1998

Enforcement of age-appropriate immunization laws.

BACKGROUND: The state of North Carolina has statutes that require age-appropriate immunization as recommended by the U.S. Public Health Service. Provisions of this statute allow for criminal misdemeanor charges and injunctions to be brought against parents who do not have their children immunized on time. The decision to invoke the age-appropriate immunization statute rests with the health director of each county. This study was performed to determine if the county health directors were aware of this statute and whether they had ever utilized it to enforce age-appropriate immunization. METHODS: All health department directors in the state of North Carolina (N = 86) received letters inviting them to complete a 20-minute structured phone interview at a time of their convenience. Specific questions addressed their knowledge of the statutes and the specific penalties available. Additional questions addressed their attitudes and beliefs about the law and what they believed the state government could do to assist in enforcing the law. RESULTS: Interviews were completed for 75 of the 86 (87%) county health departments or districts. All respondents reported they were aware, prior to receiving the materials informing them of the study, that the state required children to be immunized on time. Over 95% reported they knew the law required age-appropriate immunization and 100% were aware of school/licensed day-care requirements. The vast majority (83%) of county health directors believe that criminal misdemeanor charges and injunctions should be brought against parents for failing to have their child age-appropriately immunized. However, only 5% (n = 4) of health directors reported that their county had ever brought criminal misdemeanor charges, and none had filed an injunction against a parent whose child was not immunized on time. CONCLUSIONS: Despite the presence of legal statutes, there have been only rare efforts to compel age-appropriate immunization through enactment and enforcement of criminal penalties on parents. Much of the hesitancy for such efforts likely comes from the fear of the confusing, hard-to-understand legal procedures and from the potential negative impact on public opinion that these tactics may create. Although such actions should be taken only as a last resort, they may be necessary on some occasions.

Adult↗
PubMed1998

Adopting immunization recommendations: a new dissemination model.

OBJECTIVE: This paper presents a new approach for understanding factors related to physician adoption of clinical guidelines, using children's vaccine recommendations as a case study. METHODS: The model traces sequential steps, from awareness to agreement to adoption and, finally, adherence to the guideline. Movement through these stages can be catalyzed or retarded by many influences, grouped into two major categories: environmental characteristics of the physician's practice, and information characteristics of the guideline. Environmental characteristics include sociocultural factors, professional characteristics, and practice organization factors. Information characteristics include the guideline's relative advantage, complexity, and compatibility with existing guidelines and protocols, as well as mechanisms of guideline dissemination. IMPLICATIONS: This model can be used to identify characteristics that will likely impede or facilitate guideline adoption, and to focus dissemination efforts on key issues.

Child↗
PubMed1997

Impact of a new universal purchase vaccine program in North Carolina.

OBJECTIVE: To explore the effects of state universal purchase (UP) of vaccines for all children, regardless of income or insurance status, on North Carolina physicians and families. DESIGN: Cross-sectional survey. PARTICIPANTS: Pediatricians and family physicians (N = 2163) were surveyed in 1995 to compare immunization charges in North Carolina (new UP) with those of Massachusetts (UP) and Texas (free market). MAIN OUTCOME MEASURES: Patient charges for immunizations and well-child visits and physician perceptions of the effects of state immunization programs. Models were devised to simulate the net effect of the North Carolina UP program on immunization revenue for physicians and on families' out-of-pocket costs for well-child care. RESULTS: Physician participation rates in the 2 UP programs were very high. North Carolina physicians reported substantial decreases in immunization charges and reduced referrals to public clinics, but thought that UP increased their administrative burden. Sixty percent of North Carolina physicians increased charges for well-child visits, nearly twice that in the 2 control states. Families who previously had received immunizations from public clinics but chose to remain in the private-sector "medical home" for immunizations after implementation of UP had increased out-of-pocket expenses that varied by their insurance status. CONCLUSIONS: The North Carolina UP program is effective in decreasing patient immunization charges and reducing referrals to public clinics. However, UP does not eliminate cost as a barrier to immunization, nor does it enable all children to remain in their medical homes. Underinsured children still may face considerable financial barriers to immunization in a UP system.

Cross-Sectional Studies↗