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Biomedical subjects

Michael D Cabana

Publications and source records attributed to Michael D Cabana.

At least 19 recordsLinked to original sources
PubMed2006

National trends in bariatric surgery, 1996-2002.

BACKGROUND: Surgical therapy for the long-term treatment of obesity ("bariatric surgery") in individuals whose body mass index (calculated as weight in kilograms divided by the square of height in meters) is 40 or higher or in those who have significant obesity-related comorbidities and a body mass index of 35 or higher is one of few interventions shown to be effective. Many aspects of recent national bariatric surgery trends are unclear, including the ages of individuals undergoing such procedures and the economic burden borne by public vs private payers. HYPOTHESIS: Population-adjusted rates of bariatric surgery are rapidly increasing and have economic implications that differ for private vs public payers. DESIGN AND SETTING: We examined hospitalization and charge data from the Nationwide Inpatient Sample from 1996 through 2002, representative of national patterns for children and adults. We derived nationally weighted estimates of population-adjusted hospitalization rates and inflation-adjusted charges for bariatric surgery. We also examined the relative economic burden for public vs private payers for bariatric surgery discharges. RESULTS: Population-adjusted rates of bariatric surgery in the overall sample increased more than 7-fold in the study period, from 3.5 per 100 000 US population in 1996 to 24.0 per 100 000 in 2002. During this period, among youth (<20 years old), rates increased from 0.23 per 100 000 to 0.73 per 100 000; and among elderly persons (>65 years old), rates increased from 0.30 per 100 000 to 1.69 per 100 000. The rate increased most dramatically among those aged 20 to 65 years, who composed 97% or more of bariatric surgery discharges annually. Increases in bariatric surgical volume corresponded with increasing economic consequences overall, exceeding USD $2 billion in annual charges by 2002 (mean, USD $29,107 per discharge). Since 2000, private payers have been charged for more than 80% of the national total; annual charges to Medicare and Medicaid have been comparatively modest, but each exceeded USD $100 million by 2002. CONCLUSIONS: National rates of bariatric surgery have increased markedly among children and adults, with attendant economic consequences, principally for private insurers. This trend may reflect the dearth of effective primary care and preventive interventions to address the obesity epidemic.

Adult↗
PubMed2006

Guidelines for adolescent well care: is there consensus?

PURPOSE OF REVIEW: This paper reviews recent clinical guidelines for adolescent well care put forth by seven national organizations. It compares the guidelines recommendation by recommendation in order to assess consistency between them. RECENT FINDINGS: We found 102 specific preventive care recommendations that encompassed eight different domains. The only recommendations consistent in the seven guidelines are measuring height and weight with a physical exam, updating immunizations, and addressing general anticipatory guidance. The greatest inconsistencies were noted in specific recommendations in the behavioral/developmental and counseling/anticipatory guidance domains. SUMMARY: When compared recommendation by recommendation, we found that the guidelines for adolescent preventive care vary considerably. A unified set of guidelines may help reduce the number of conflicting recommendations and may increase provider confidence and adherence to adolescent-specific clinical guidelines.

Adolescent↗
PubMed2006

Probiotics in primary care pediatrics.

Probiotics are live microorganisms that help stabilize and balance intestinal microflora. Although these organisms are ubiquitous and have been used in the production of foods, probiotics have been used more frequently for therapeutic purposes, including the treatment and prevention of pediatric diseases. This article reviews the proposed mechanisms of the beneficial effects of probiotics, potential uses of these organisms in pediatric care, and promising future directions for their application.

Bifidobacterium↗
PubMed2006

Indices for continuity of care: a systematic review of the literature.

This article systematically reviews published literature on different continuity of care (COC) indices that assess the physician-patient relationship and the applicability of such indices to pediatric and chronic-disease patient populations. Frequency and visit type may vary for pediatric and chronically ill patients versus healthy adult patients. Two investigators independently examined 5,070 candidate articles and identified 246 articles related to COC. Forty-four articles were identified that include 32 different indices used to measure COC. Indices were classified into those that calculated COC primarily based on duration of provider relationship (n=2), density of visits (n=17), dispersion of providers (n=8), sequence of providers (n=1), or subjective estimates (n=4). The diversity of COC indices reflect differences in how this measure is conceptualized. No index takes into account the visit type. A unique index that reflects continuity in the physician patient relationship for pediatric and chronic disease populations is needed.

Benchmarking↗
PubMed2006

Improving quality of care and promoting health care system change: The role of community-based coalitions.

As part of their community action plans, the Allies Against Asthma coalitions have developed efforts to improve quality of care and promote health care system change. All the coalitions have used an interdisciplinary collaborative approach to design these strategies and demonstrated a range of intervention approaches appropriate to their local context and circumstances. The coalitions' collective experience suggests that coalitions provide three key forces for quality improvement and change that may be lacking in the current fragmented U.S. health care system--motivation to change the status quo, integration across systems, and accountability for results. The collaborative and empowering processes that a coalition model encourages and the direct advocacy opportunity provided to the consumer appear to bring these forces into play.

Asthma↗
PubMed2006

Understanding of asthma management: Medicaid parents' perspectives.

OBJECTIVE: This article explores parental caregiver perspectives on barriers to asthma care in the Medicaid system. METHODS: Focus groups were held for parents of children with persistent asthma to identify barriers to asthma care for children insured by Medicaid in the Ypsilanti, MI area. Semistructured questions regarding health goals, asthma care, and access were used. Themes were defined as distinct categories or concepts regarding aspects of asthma care and coded. RESULTS: Thirty-six adults participated in four focus groups, 89% were the biological mother, and 64% were African American. Major themes identified included caregiver emotions, caregiver/patient knowledge, environmental issues, school/daycare support, Medicaid health-care system issues, the role of medical providers, and emerging adolescence. Parents demonstrated asthma awareness but were not confident in their role as the child's disease manager. A specific gap was seen in the caregiver's level of self-efficacy to control exposure to asthma triggers, monitor the child's symptoms, and modify medications based on asthma symptoms. CONCLUSION: Medicaid-insured families face unique barriers related to income and insurance limitations as well as issues common to others with asthma. Caregivers demonstrated a high level of asthma knowledge, but like other caregivers gaps between knowledge and behavior existed. Barriers to asthma care that may be specific to Medicaid-insured patients included difficulty maintaining continuity of care due to physician participation in Medicaid programs, and concerns about possible differences in asthma care from health-care providers due to their Medicaid insurance status.

Adolescent↗
PubMed2006

Impact of physician asthma care education on patient outcomes.

OBJECTIVE: We evaluated the effectiveness of a continuing medical education program, Physician Asthma Care Education, in improving pediatricians' asthma therapeutic and communication skills and patients' health care utilization for asthma. METHODS: We conducted a randomized trial in 10 regions in the United States. Primary care providers were recruited and randomly assigned by site to receive the program provided by local faculty. The program included 2 interactive seminar sessions (2.5 hours each) that reviewed national asthma guidelines, communication skills, and key educational messages. Format included short lectures, case discussions, and a video modeling communication techniques. We collected information on parent perceptions of physicians' communication, the child's asthma symptoms, and patients' asthma health care utilization. We used multivariate regression models to determine differences between control and intervention groups. RESULTS: A total of 101 primary care providers and a random sample of 870 of their asthma patients participated. After 1 year, we completed follow-up telephone interviews with the parents of 731 of the 870 patients. Compared to control subjects, parents reported that physicians in the intervention group were more likely to inquire about patients' concerns about asthma, encourage patients to be physically active, and set goals for successful treatment. Patients of physicians that attended the program had a greater decrease in days limited by asthma symptoms (8.5 vs 15.6 days), as well as decreased emergency department asthma visits (0.30 vs 0.55 visits per year). CONCLUSIONS: The Physician Asthma Care Education program was used in a range of locations and was effective in improving parent-reported provider communication skills, the number of days affected by asthma symptoms, and asthma health care use. Patients with more frequent asthma symptoms and higher health care utilization at baseline were more likely to benefit from their physician's participation in the program.

Asthma↗
PubMed2006

Assessment of asthma severity and asthma control in children.

National and international guidelines for asthma recommend the assessment and documentation of severity as the basis for patient management. However, studies show that there are problems with application of the severity assessment to children in clinical practice. More recently, asthma control has been introduced as a method to assess the adequacy of current treatment and inform asthma management. In this article we review the application and limitations of the severity assessment and the asthma-control tools that have been tested for use in children. A system of using asthma severity for disease assessment in the absence of treatment and using asthma-control assessment to guide management decisions while a child is receiving treatment appears to be a promising approach to tailor treatment to improve care and outcomes for children with asthma.

Asthma↗
PubMed2006

Asthma educational seminar targeting Medicaid providers.

BACKGROUND: Medicaid-insured children have high risk of asthma but are less likely to receive care in keeping with national guidelines. We targeted providers who care for a large proportion of Medicaid-insured children and presented a 2-session multimedia asthma-education seminar that emphasizes communication and teaching techniques, to enhance providers' asthma-care teaching skills. METHODS: Five Medicaid-approved health maintenance organizations recruited pediatric primary-care providers. Providers were surveyed at baseline, 6 months, and 12 months to determine if they reported changes in their use of certain asthma-care communication techniques. RESULTS: Fifty-three of 70 participating providers completed the program and initial survey. They reported that 50% (median) of their patients were insured by Medicaid. At baseline, providers reported they were very confident of their asthma knowledge; however, they were less confident in interactions with patients/families regarding asthma self-management skills. Providers reported use of written plans less than half of the time. The response rate was 60% at 6 months and 71% at 1 year. Twenty-eight providers completed all 3 surveys. They reported significantly more frequent use of communication and counseling techniques that involved patient/parent asthma education and self-management skills at the 6-month point, that were partly sustained at 1 year. Reported provision of written asthma plans to patients had increased significantly at 6 months, but that increase was not sustained at the 1-year point. CONCLUSIONS: The seminar significantly enhanced knowledge of specific communication techniques related to asthma-teaching goals and reported use of asthma action plans to enhance self-management skills; however, these practices appear to need frequent reinforcement.

Asthma↗
PubMed2005

Regional variation in ICU care for pediatric patients with asthma.

OBJECTIVE: To determine adherence to guidelines for severe asthma care and evaluate regional variability in practice among pediatric intensive care units (PICU). STUDY DESIGN: A retrospective cohort study of children treated for asthma in a PICU during 2000 to 2003. We utilized the Pediatric Health Information System (PHIS) database to identify patients and determine use of asthma therapies when patients did not improve with standard therapy (inhaled beta-agonists and systemic corticosteroids). RESULTS: Of 7125 children studied, 59% received inhaled anticholinergic medications. Use of other therapies included systemic beta-agonists (n = 1841 [26%]), magnesium sulfate (n = 1521 [21%]), methylxanthines (n = 426 [6%]), inhaled helium-oxygen gas mixture (heliox) (n = 740 [10%]), and endotracheal intubation with ventilation (n=1024 [14%]). Use of therapies varied by census region. Over half the patients (n = 524) who received ventilation did so for < or = 1 day. Adjusted for severity of illness, use of mechanical ventilation varied significantly by census division; however, much of the variation was among children ventilated for < or = 1 day. CONCLUSION: Adherence to national guidelines for use of inhaled anticholinergics among critically ill children is low, and marked variation in use of invasive ventilation exists. More explicit guidelines regarding indications for invasive ventilation may improve asthma care.

Anti-Asthmatic Agents↗
PubMed2005

Factors associated with non-attendance at pediatric subspecialty asthma clinics.

BACKGROUND: Children with Medicaid insurance are less likely to receive subspecialty asthma care than non-Medicaid patients. However, it is not clear if such disparities are due to non-attendance at scheduled visits by patients. OBJECTIVE: To determine factors associated with non-attendance at scheduled visits for pediatric subspecialty asthma care. DESIGN/METHODS: We conducted a cross-sectional study of children with scheduled visits at three asthma clinics during a 12-month period. Our outcome of interest was patient non-attendance for a scheduled visit, controlling for age, gender, new patient status, type of insurance, severity of illness, distance to clinic, clinic site, month, and weekday of scheduled visit. We used logistic regression for multivariate comparisons and controlled for clustering effects for children with multiple scheduled visits. RESULTS: There were 1236 scheduled visits for 857 unique patients. Median age: 7 years (IQR 3-11); median distance traveled: 24 miles (IQR 13-41); 20% had Medicaid insurance. The non-attendance rate was 8%. In multivariate analysis, Medicaid insurance (OR 2.33, 95% CI 1.45-3.74) and visits scheduled in September-December (3.26, 2.08-5.11) were associated with non-attendance. CONCLUSIONS: Children with Medicaid insurance are less likely to attend scheduled visits for subspecialty asthma care, controlling for seasonal variation. Programs designed to address disparities in pediatric asthma outcomes regarding subspecialist care may improve their effectiveness by addressing barriers to attendance and anticipating poor attendance in the fall season.

Appointments and Schedules↗
PubMed2005

Variation in establishing a diagnosis of obesity in children.

Consensus guidelines provide recommendations for the diagnosis and management of obesity. We conducted a medical record review of children initially diagnosed with obesity at a general pediatrics visit. The diagnosis was made most often at health maintenance visits (46%). Body mass index was documented in 5% of initial visits; 74% had documentation of obesity-related history; 64% had documentation of counseling. In multivariate analysis, male patients were more likely to have diet history documentation; female patients were more likely to have weight loss program referrals. Future research should assess pediatricians' perceptions about obesity to better understand clinical practice patterns.

Adolescent↗
PubMed2005

Asking the correct questions to assess asthma symptoms.

A national survey of 896 parents of children with asthma was performed and responses to 2 types of inquiry were compared: global assessment versus specific assessment of symptoms. Almost all parents, 860 (96%), described their child's asthma as under "good control'' when asked a global assessment question. However, 306 (34%)-when asked specific questions-actually described poor asthma control with frequent symptoms. Medicaid insurance (OR: 1.59; 95% CI: 1.03, 2.44) and parental smoking (OR: 1.60; 95% CI: 1.06, 2.43) increased the likelihood that parents' responses would be at risk for misinterpretation. Increased education (OR 0.41: 95% CI: 0.18, 0.91) and English as the primary language (OR 0.39; 95% CI 0.16, 0.96) were associated with decreased likelihood of misinterpretation. Vague, global assessment questions lead to incomplete clinical information and places the patient at risk for inadequate asthma therapy. A better approach is to use specific questions to determine the frequency of daytime or nighttime symptoms.

Adult↗