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Biomedical subjects

Gary L Freed

Publications and source records attributed to Gary L Freed.

At least 37 records · Page 2Linked to original sources
PubMed2005

Hitting the mark ... sometimes. Improve the accuracy of CPT code distribution.

Researchers examined the current procedural terminology (CPT) evaluation and management (E&M) code distribution before and after applying corrections for the inaccuracy of code assignment to actual CPT E&M claims. They found that code distribution differed dramatically after the practice's claims were corrected for coding errors identified by coding analysts. Physicians' poor understanding of coding guidelines and regulatory pressure to code correctly may account for the discrepancies. Regardless of the reasons, poor coding opens an organization to compliance audits and loss of legitimately earned revenue.

Current Procedural Terminology↗
PubMed2004

Safety concerns regarding combination vaccines: the experience in Japan.

This study explored the safety concerns associated with combination vaccines in Japan. The impact of Japan's decision in 1975 to withdraw the combined diptheria, tetanus, and pertussis (DTP) vaccine, and then in 1993, the combined measles, mumps, and rubella (MMR) vaccine and provide only the single antigen vaccines was analyzed. Interviews with both governmental and non-governmental agency officials in Japan demonstrated that withdrawal of the DTP and MMR vaccines had significant impact on the rates of immunization and disease despite the availability of monovalent vaccines.

Child↗
PubMed2004

Which physicians are providing health care to America's children? Trends and changes during the past 20 years.

BACKGROUND: Although pediatricians and family physicians are trained in the care of children, previous studies have revealed significant differences in the medical care and specialty referral patterns each provides. During the 1990s, several developments in the population and the health care system (eg, aging of the population and increases in Medicaid managed care) may have resulted in changes to the proportion of children seeking care from one or the other specialty. OBJECTIVE: To determine any changes in the proportion of office visits for children from birth through the age of 17 years provided by pediatricians or family physicians from 1980 to 2000. DESIGN: Analysis of the National Ambulatory Medical Care Survey data sets from 1980 to 2000. During our years of interest, the total number of visits sampled ranged from 2524 to 9151. Visits were analyzed for physician type and patient age. RESULTS: There have been marked changes in the proportion of office visits to general pediatricians vs family physicians during the 1990s. Overall, the percentage of all nonsurgical physician office visits for children from birth through the age of 17 years made to general pediatricians increased significantly, from 56.2% in 1990 to 64.2% in 2000 (P<.001). During the same period, the percentage of all nonsurgical physician office visits for children from birth through the age of 17 years made to family physicians declined significantly, from 33.7% in 1990 to 23.9% in 2000 (P<.001). Visits to pediatric specialists, as a proportion of all visits, increased significantly, from 1.6% in 1980 to 4.5% in 2000 (P<.001). CONCLUSIONS: Pediatricians are providing more primary care visits for children in the United States, and this trend has accelerated during the past 5 years. These findings have implications for the cost of care, the physician workforce, and the training of future physicians. It is unknown if these changes have had a positive or negative impact on the health of our nation's children.

Adolescent↗
PubMed2004

Parental vaccine safety concerns. The experiences of pediatricians and family physicians.

OBJECTIVES: Recently several concerns regarding vaccine safety have received significant media attention. Primary care physicians are the most common interface for parents with the immunization delivery system and are likely to have the greatest opportunity for exposure and experience with parental vaccine safety concerns. METHODS: Mail survey study of a national random sample of 750 pediatricians (PDs) and 750 family physicians (FPs) was conducted in 2000. Outcome variables of primary interest included the number of parental vaccine refusals in the past year, frequency of specific parent vaccine safety concerns, and actions taken by physicians when parents refused a vaccine. Chi-square analysis was used to determine the significance of the association of each outcome variable of interest with physician specialty, frequency of vaccine refusal, and the demographic variables. Multivariate analysis explored the potential for independent predictors of physicians who experienced increases in vaccine refusal. RESULTS: The response rate was 70%. Overall, 93% of PDs and 60% of FPs reported at least one parental vaccine refusal in their practice in the past year. PDs also were more likely than FPs to report an increase in the number of vaccine refusals over the past year (18% v 8%, p =0.01), while FPs were more likely to report a decrease in vaccine refusals over the same time period (18% v 11%; p <0.5). PDs were more likely than FPs to provide additional information regarding vaccines to parents who refused vaccines and/or to discuss the issue at later visits. The most common concerns of parents were related to short-term reactions and pain from multiple injections. CONCLUSIONS: While almost all PDs and most FPs experienced at least one vaccine refusal from parents in the past year, far fewer physicians of both specialties observed an increase in their occurrence. Physicians must work to be consistently well informed of both the benefits of immunization as well as the issues of parental concern regarding vaccine safety.

Child, Preschool↗
PubMed2004

Relation of per capita income and gross domestic product to the supply and distribution of pediatricians in the United States.

OBJECTIVE: To describe the number and distribution of pediatricians per child nationally and on a state-by-state basis relative to the economic conditions within each state. STUDY DESIGN: Real inflation-adjusted gross domestic product (GDP) per capita (1996 dollars) was plotted against the number of all active physicians and pediatricians in the United States for all years data were available. GDP was then compared with the active number of pediatric medical physicians per child 0 to 14 years of age. RESULTS: The number of pediatricians per 100000 children has more than doubled, from 49.8 to 106.2. Since 1929, the growth in the total number of physicians per capita in the United States has followed a linear relation (r(2)=0.977) with per capita national GDP. This relation is consistent with that specifically for all pediatricians as well (r(2)=0.980) for the years in which data are available (1963 to 2000). There is an extremely uneven distribution of pediatricians. Income differences only partially explain this maldistribution. CONCLUSIONS: There has been a marked increase in the number of pediatricians relative to the number of children in the United States, correlating strongly with the rise in per capita GDP. However, there has been a furthering of their uneven distribution across the United States.

Child↗
PubMed2004

Prevalence and distribution of corrective lenses among school-age children.

BACKGROUND: No population-based data are available regarding the proportion of school-age children who have corrective lenses in the U.S. The objective of this study was to quantify the proportion of children who have corrective lenses (glasses or contact lenses) and to evaluate the association of corrective lenses with age, gender, race/ethnicity, health insurance status, and family income. METHODS: Children 6 to 18 years of age were identified in the 1998 Medical Expenditure Panel Survey. National estimates were made of the proportion with corrective lenses. Logistic regression modeling was used to assess factors that were associated with corrective lenses. RESULTS: Based on the 5,141 children in the 1988 Medical Expenditure Panel Survey, an estimated 25.4% of the 52.6 million children between 6 and 18 years had corrective lenses. Girls had greater odds than boys of having corrective lenses (odds ratio, 1.41; p < 0.001). Insured children, regardless of race/ethnicity, and uninsured nonblack/non-Hispanic children had similar odds of having corrective lenses. Compared with uninsured black or Hispanic children (odds ratio, 1), greater odds of corrective lens use was found among uninsured nonblack/non-Hispanic children (odds ratio, 2.29; p = 0.002) and black or Hispanic children with public (odds ratio, 1.67; p = 0.005) or private health insurance (odds ratio,1.77; p = 0.004). Among families with an income > or =200% of the federal poverty level, the odds of having corrective lenses increased with age (p < or = 0.04). In contrast, among those families <200% of the federal poverty level, the odds of having corrective lenses at 12 to 14 years was similar to 15- to 18-year olds (p = 0.93). CONCLUSIONS: The use of corrective lenses suggests that correctable visual impairment is the most common treatable chronic condition of childhood. Income, gender, and race/ethnicity, depending on insurance status, are associated with having corrective lenses. The underlying causes and the impacts of these differences must be understood to ensure optimal delivery of eye care.

Adolescent↗
PubMed2004

Emergency department use among Michigan children with special health care needs: an introductory study.

OBJECTIVE: To describe patterns of emergency department (ED) use among children dual-enrolled in Medicaid and Michigan's Children's Special Health Care Services (CSHCS). DATA SOURCES: Individual claims and enrollment data from Michigan's Medicaid and CSHCS programs for the period January 1, 1998, to June 30, 1999. Claims data were linked with eligibility data and then used to develop a 100 percent sample of claims for individuals enrolled in both Medicaid and CSHCS. STUDY DESIGN: Poisson regression analysis was used to examine the rate of ED use for dual-enrolled children. A time-varying hazard analysis was also used to examine the impact of changes over time. The key variables were gender, age, race, county of residence, Medicaid eligibility category, and qualifying diagnosis. PRINCIPAL FINDINGS: Dual-enrolled children under one year of age, and those with qualifying diagnoses of anemia, hemophilia, asthma, epilepsy, and juvenile diabetes displayed especially high rates of ED use. Significant geographic variation in ED use remained after controlling for qualifying diagnoses, race/ethnicity, and other factors. African Americans displayed higher rates of ED utilization than non-Hispanic whites. Supplemental Security Income (SSI) recipients demonstrated higher utilization than other groups. CONCLUSIONS: Children dually enrolled in CSHCS and Medicaid face diverse challenges of both poverty and chronic illness. Differences in patterns of use highlight the importance, but also the difficulty, of developing systems of care to manage complex chronic conditions in low-income populations.

Adolescent↗
PubMed2004

Direct measurement of onset and offset phonation threshold pressure in normal subjects.

Phonation threshold pressures were directly measured in five normal subjects in a variety of voicing conditions. The effects of fundamental frequency, intensity, closure speed of the vocal folds, and laryngeal airway resistance on phonation threshold pressures were determined. Subglottic air pressures were measured using percutaneous puncture of the cricothyroid membrane. Both onset and offset of phonation were studied to see if a hysteresis effect produced lower offset pressures than onset pressures. Univariate analysis showed that phonation threshold pressure was influenced most strongly by fundamental frequency and intensity. Multiple linear regression showed that these two variables, as well as laryngeal airway resistance, most strongly predicted phonation threshold pressure. Two of the five subjects demonstrated a significant hysteresis effect, but one subject actually had higher offset pressures than onset pressures.

Adult↗
PubMed2004

Role of health insurance and a usual source of medical care in age-appropriate vaccination.

OBJECTIVES: We examined the associations of having health insurance and having a usual source of medical care with age-appropriate childhood vaccination. METHODS: Simulations were conducted with multivariate logistic regression models and a nationally representative sample of children to assess the likelihood of age-appropriate vaccination. RESULTS: Simulated provision of health insurance and a usual source of medical care produced substantial increases in the likelihood of doses being received age-appropriately. Increases in the likelihood of a child's being up to date were also observed, but these increases typically were smaller than for age-appropriate vaccination. CONCLUSIONS: Changes in childhood vaccination status should be assessed in age-appropriate terms, because measures of "up to date" status may not capture the effects of immunization interventions.

Child↗
PubMed2004

End-of-life choices for African-American and white infants in a neonatal intensive-care unit: a pilot study.

BACKGROUND: African-American adults are more likely than white adults to desire the continuation of life-sustaining medical treatment (LSMT) at the end of life. No studies have examined racial differences in parental end-of-life decisions for neonates. OBJECTIVE: To collect preliminary data to determine whether differences exist in the choices made by parents of African-American and white infants when a physician has recommended withholding or withdrawing LSMT from their infant to develop hypotheses for future work. DESIGN/METHODS: A retrospective chart review of African-American and white infants who died in an urban neonatal intensive care unit (NICU) over a two-year period. Charts were abstracted for demographics, cause of death, and documentation of meetings where the physician recommended withholding or withdrawing LSMT. RESULTS: Thirty-eight infant charts met study criteria (58% African-American, 42% white). Documentation of physician recommendations to limit LSMT was present in 61% of charts. Approached families of white infants agreed to limit LSMT 80% of the time compared to 62% of the families of African-American infants. CONCLUSIONS: In this pilot study, parents of African-American and white infants appeared to make different end-of-life choices for their children. A larger study is needed to confirm these findings and further explore contributing factors such as mistrust, religiosity, and perceived discrimination.

Adolescent↗
PubMed2003

Variation in public and private supply of pneumococcal conjugate vaccine during a shortage.

CONTEXT: In late August 2001, a serious shortage of the heptavalent pneumococcal conjugate vaccine (PCV7) developed in 34 state immunization programs. In September 2001, the Centers for Disease Control and Prevention published revised recommendations advising physicians to prioritize PCV7 to specific groups of children. The effect of the shortage at the practice level is unknown. OBJECTIVE: To determine the variation between public and private markets in the supply of PCV7 and the nature and extent of the PCV7 shortage at the practice level. DESIGN, SETTING, AND PARTICIPANTS: Semistructured interviews with office staff responsible for ordering vaccines at private practices in 12 states were conducted between October 19 and November 2, 2001. MAIN OUTCOME MEASURES: Variation in supply of PCV7 obtained from public sources and through purchase on the private market. Supply was characterized into 3 categories: "no problem," "problem obtaining a consistent supply," and "out of stock." RESULTS: Interviews were completed at 405 practices, representing a response rate of 74%. Overall, 51% of practices reported at least 1 episode of being out of stock of public PCV7 and 64% of private PCV7, with significant state-to-state variation. Only 2 of 12 study states had a substantially higher proportion of practices experiencing out-of-stock episodes for public compared with private PCV7, while in 6 states public PCV7 was less frequently out of stock than private PCV7. Only 23% of practices in this study altered their administration policy for private PCV7, while 27% altered their policy for public PCV7. CONCLUSIONS: The distribution and supply of PCV7 varied between public and private supplies and between states during the shortage. Few practices changed their administration schedules in response to revised recommendations.

Pneumococcal Vaccines↗
PubMed2003

Predicting the pediatric workforce: use of trend analysis.

OBJECTIVE: To develop a predictive model for projecting the pediatric workforce and retrospectively test its accuracy at different points in time over the past several decades. METHODS: We applied a modified version of the physician workforce trend model developed by Cooper et al. We first analyzed and tested the relationship between economic activity and the number of active pediatric medical physicians for several periods from 1963 to 2000. To project economic activity and population changes in the United States, we conducted linear trend analyses by using the available historical data through the year before the forecast period of interest. RESULTS: There has been significant growth of the absolute numbers of the pediatrician workforce over the past several decades. There was a strong correlation (R2=.98) of gross domestic product per capita (using 1996 dollars) with the number of active pediatricians (generalists and specialists) per 100,000 children in the United States by year over a 37-year period from 1963 to 2000. Predictions of pediatrician supply using historical census and economic data to inform the trend analysis were also very highly correlated with actual supply. CONCLUSIONS: The methods used in this study to predict the pediatric workforce were very accurate and consistent over a 37-year period.

Forecasting↗
PubMed2003

Influence of insurance status and vaccine cost on physicians' administration of pneumococcal conjugate vaccine.

OBJECTIVE: In 2000, heptavalent pneumococcal conjugate vaccine (PCV7) was recommended for children younger than 2 years, but its high cost relative to other universally recommended childhood immunizations and variability in insurance coverage for the vaccine raised concerns. We investigated the influence of PCV7 cost and insurance coverage on physician recommendation of PCV7 to their patients and administration of PCV7 in their practices. METHODS: We conducted a mail survey from April to July 2001 of a random sample of 833 pediatricians and 788 family physicians in 24 states with different vaccine financing strategies (Vaccines for Children [VFC]-only; enhanced VFC; universal purchase). Physicians specified the proportion of children in their practice with insurance coverage for PCV7, where they recommend administering PCV7, and whether they have concerns about the cost of PCV7. RESULTS: The response rate was 60%. Overall, 87% of physicians recommend PCV7 for children younger than 2 years (99% pediatricians; 68% family physicians). Among physicians who recommend PCV7, 98% said that they would administer the vaccine in their own practices for children whose insurance covers the vaccine. However, only 56% of physicians who recommend PCV7 reported that all children in their practices had insurance coverage for the vaccine, whereas 24% of physicians reported 86% to 99% of children with coverage and 20% reported <or=85% of children with coverage. Among physicians in the last group with the lowest PCV7 insurance coverage rates in their practices, only 44% said that they would administer the vaccine in their own practices to children without PCV7 coverage, compared with 62% of physicians who provide care to children with higher rates of PCV7 coverage. Physicians in states with VFC-only vaccine financing strategies for PCV7 are less likely to administer PCV7 in their own practices to children without coverage than physicians in states with enhanced VFC and universal purchase strategies (48% vs 64% vs 74%). Almost one third of physicians who recommend PCV7 are concerned about the cost of PCV7; those with cost concerns are more likely to recommend that children without insurance coverage for PCV7 receive the vaccine at a public health clinic rather than in their own practices (45% vs 29%). Physicians with cost concerns are also more likely to say that they now screen children for insurance coverage more than for previously recommended vaccines (52% vs 21% for physicians without cost concerns). CONCLUSIONS: Nationwide, physician adoption of PCV7 recommendations is high, but where physicians recommend that PCV7 be administered differs significantly by children's variable insurance coverage for the vaccine and by state vaccine financing strategies. Physicians' concerns about the cost of PCV7 may foreshadow their responses to future children's vaccines that may be even more expensive.

Age Distribution↗
PubMed2003

Comparing the self-reported referral and management preferences of pediatricians and family physicians for children with juvenile rheumatoid arthritis.

OBJECTIVE: The symptoms of juvenile rheumatoid arthritis (JRA) are often first recognized by primary care physicians. Little is known about the determinants of the initial management and referral patterns of these physicians for children with JRA. We compared the self-reported preferences and practices of pediatricians (PD) and family physicians (FP) in the diagnosis and management of children with JRA. METHODS: Surveys were mailed to a national random sample of 700 PD and 867 FP. Questions included prior experience with JRA, usual patterns in the diagnosis and management of JRA, perception of the need for guidelines for referral and management of this condition, and physician demographic information. Data analysis included univariate and bivariate analysis. RESULTS: Response rates were 69% for PD and 49% for FP. Most respondents had seen very few JRA cases in the previous 5 years. Only 1% of respondents reported that they provided all diagnosis and management for patients with JRA. Forty-two percent of PD and 32% of FP refer all JRA diagnosis and management to subspecialists, while 46% of PD and 61% of FP refer only to confirm the diagnosis and guide initial therapy (p = 0.011). More PD than FP (PD 92% vs FP 76%; p = 0.001) referred patients with JRA to pediatric rheumatologists, while more FP than PD referred to general rheumatologists (PD 17% vs FP 37%; p = 0.001). The majority of FP reported feeling more comfortable managing rheumatologic disease in adults than children (82%). Few respondents felt that they were up to date on the latest advances in JRA treatment (PD 10% vs FP 4%; p = 0.024). CONCLUSION: Multiple factors may contribute to physicians' referral practice, including a patient's clinical status and the physician's beliefs of inadequacy of training and inability to stay up to date. The pattern of care that children with JRA receive likely will be influenced by initial presentation to a PD or to a FP.

Arthritis, Juvenile↗