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David Lanier

Publications and source records attributed to David Lanier.

7 recordsLinked to original sources
PubMed2005

Using the ecology model to describe the impact of asthma on patterns of health care.

BACKGROUND: Asthma changes both the volume and patterns of healthcare of affected people. Most studies of asthma health care utilization have been done in selected insured populations or in a single site such as the emergency department. Asthma is an ambulatory sensitive care condition making it important to understand the relationship between care in all sites across the health service spectrum. Asthma is also more common in people with fewer economic resources making it important to include people across all types of insurance and no insurance categories. The ecology of medical care model may provide a useful framework to describe the use of health services in people with asthma compared to those without asthma and identify subgroups with apparent gaps in care. METHODS: This is a case-control study using the 1999 U.S. Medical Expenditure Panel Survey. Cases are school-aged children (6 to 17 years) and young adults (18 to 44 years) with self-reported asthma. Controls are from the same age groups who have no self-reported asthma. Descriptive analyses and risk ratios are placed within the ecology of medical care model and used to describe and compare the healthcare contact of cases and controls across multiple settings. RESULTS: In 1999, the presence of asthma significantly increased the likelihood of an ambulatory care visit by 20 to 30% and more than doubled the likelihood of making one or more visits to the emergency department (ED). Yet, 18.8% of children and 14.5% of adults with asthma (over a million Americans) had no ambulatory care visits for asthma. About one in 20 to 35 people with asthma (5.2% of children and 3.6% of adults) were seen in the ED or hospital but had no prior or follow-up ambulatory care visits. These Americans were more likely to be uninsured, have no usual source of care and live in metropolitan areas. CONCLUSION: The ecology model confirmed that having asthma changes the likelihood and pattern of care for Americans. More importantly, the ecology model identified a subgroup with asthma who sought only emergent or hospital services.

Adult↗
PubMed2004

Asthma severity: the patient's perspective.

BACKGROUND: Although asthma is a common condition, limited epidemiological data exists on the distribution or course of asthma severity. We know even less about how patients or parents rate the severity of their or their child's asthma or what factors they associate with more severe asthma. A large nationally diverse sample of asthma patients' self-assessment of severity is available but has not been analyzed to look at asthma severity from the patients' perspective. METHOD: Data from the "household" and "event" files from the 1999 Medical Expenditure Panel Survey were combined to obtain a distribution of patient-reported asthma severity and the health care utilization, medication usage, and personal characteristics associated with different levels of self-reported severity for that subgroup that answered the chronic disease portion of the survey. RESULTS: Almost two thirds of patients (63% of adults) or parents (65% of children) described their or their child's asthma as very or somewhat serious. Among both children and adults, more severe asthma was associated with greater numbers of missed school and workdays, and lower overall health status. The associated differences in health utilization varied by age. Models of severity based on available NAEPP criteria explained less than 10% of the participant's variation in self-reported asthma severity. CONCLUSION: Parents and patients with asthma appear to use different metrics than physicians and researchers to define the more severe categories of asthma. This disparity suggests the need for an asthma measure that is more widely understood, and accepted by patients and clinicians to serve as a tool to improve asthma-related communications and the achievement of mutually determined therapy goals.

Adolescent↗
PubMed2003

The ecology of medical care for children in the United States.

BACKGROUND: Medical care ecology has previously been investigated for adults, but no similar exploration has been made specifically for children. OBJECTIVE: To describe proportions of children receiving care in 6 types of health care setting on a monthly basis and to identify characteristics associated with receipt of care in these settings. METHODS: Nationally representative data from the 1996 Medical Expenditure Panel Survey were used to estimate the number of children per 1000 per month who received care at least once in each type of setting. Multivariate analyses assessed associations between receiving care in various settings and children's sociodemographic factors (age, sex, ethnicity, poverty, parent's education, urban or rural residence, insurance status, and whether or not the child had a usual source of care). RESULTS: Of 1000 children aged 0 to 17 years, on average each month 167 visited a physician's office, 82 a dentist's office, 13 an emergency department, and 8 a hospital-based outpatient clinic. Three were hospitalized and 2 received professional health care in their home. Younger age was associated with increased proportions of children receiving care in all health care settings except dentists' clinics. Poverty, lack of health insurance, black race, and Hispanic ethnicity were associated with decreased receipt of care in physicians' and dentists' offices. Only age (<2 years and 13-17 years) and poverty status were associated with hospitalization (P <.05 for each). Rural residence was not associated with any significant variation in proportions of children receiving care in any setting. Having a usual source of care was associated with increased receipt of care in all settings except hospitals. CONCLUSIONS: The ecology of children's medical care is similar to that of adults in the United States in that a substantial proportion of children receive health care each month, mostly in community-based, outpatient settings. In all settings except emergency departments, receipt of care varies significantly by children's age, race, ethnicity, income, health insurance status, and whether they have a usual source of care.

Adolescent↗
PubMed2002

Genetics in primary care: a USA faculty development initiative.

The Genetics in Primary Care (GPC) project is a USA national faculty development initiative with the goal of enhancing the training of medical students and primary care residents by developing primary care faculty expertise in genetics. Educational strategies were developed for the project by an executive committee with input from an advisory committee, comprising individuals with primary care, medical education and genetics expertise. These committees identified the key issues in genetics education for primary care as (1) considering inherited disease in the differential diagnosis of common disorders; (2) using appropriate counseling strategies for genetic testing and diagnosis, and (3) understanding the implications of a genetic diagnosis for family members. The group emphasized the importance of a primary care perspective, which suggests that the clinical utility of genetic information is greatest when it has the potential to improve health outcomes. The group also noted that clinical practice already incorporates the use of family history information, providing a basis for discussing the application of genetic concepts in primary care. Genetics and primary care experts agreed that educational efforts will be most successful if they are integrated into existing primary care teaching programs, and use a case-based teaching format that incorporates both clinical and social dimensions of genetic disorders. Three core clinical skills were identified: (1) interpreting family history; (2) recognizing the variable clinical utility of genetic information, and (3) acquiring cultural competency. Three areas of potential controversy were identified as well: (1) the role of nondirective counseling versus shared decision-making in discussions of genetic testing; (2) the intrinsic value of genetic information when it does not influence health outcomes, and (3) indications for a genetics referral. The project provides an opportunity for ongoing discussion about these important issues.

Journal Article↗
PubMedDate not supplied

Variation in the ecology of medical care.

BACKGROUND: We wanted to quantify how the location in which medical care is delivered in the United States varies with the sociodemographic characteristics and health care arrangements of the individual person. METHODS: Data from the 1996 Medical Expenditures Panel Survey (MEPS) were used to estimate the number of persons per 1,000 per month in 1996 who had at least 1 contact with physicians' offices, hospital outpatient departments, or emergency departments, hospitals, or home care. These data were stratified by age, sex, race, ethnicity, household income, education of head of household, residence in or out of metropolitan statistical areas, having health insurance, and having a usual source of care. RESULTS: Physicians' offices were overwhelmingly the most common site of health care for all subgroups studied. Lacking a usual source of care was the only variable independently associated with a decreased likelihood of care in all 5 settings, and lack of insurance was associated with lower rates of care in all settings but emergency departments. Generally, more complicated patterns emerged for most sociodemographic characteristics. The combination of having a usual source of care and health insurance was especially related to higher rates of care in all settings except the emergency department. CONCLUSION: Frequency and location of health care delivery varies substantially with sociodemographic characteristics, insurance, and having a usual source of care. Understanding this variation can inform public consideration of policy related to access to care.

Adolescent↗