Enhancing the medical homes model for children with asthma

Changes in chronic medication adherence, costs, and health care use after a cancer diagnosis among low-income patients and the role of patient-centered medical homes

BACKGROUND

Approximately 40% of patients with cancer also have another chronic medical condition. Patient-centered medical homes (PCMHs) have improved outcomes among patients with multiple chronic comorbidities. The authors first evaluated the impact of a cancer diagnosis on chronic medication adherence among patients with Medicaid coverage and, second, whether PCMHs influenced outcomes among patients with cancer.

METHODS

Using linked 2004 to 2010 North Carolina cancer registry and claims data, the authors included Medicaid enrollees who were diagnosed with breast, colorectal, or lung cancer who had hyperlipidemia, hypertension, and/or diabetes mellitus. Using difference-in-difference methods, the authors examined adherence to chronic disease medications as measured by the change in the percentage of days covered over time among patients with and without cancer. The authors then further evaluated whether PCMH enrollment modified the observed differences between those patients with and without cancer using a differences-in-differences-in-differences approach. The authors examined changes in health care expenditures and use as secondary outcomes.

RESULTS

Patients newly diagnosed with cancer who had hyperlipidemia experienced a 7-percentage point to 11-percentage point decrease in the percentage of days covered compared with patients without cancer. Patients with cancer also experienced significant increases in medical expenditures and hospitalizations compared with noncancer controls. Changes in medication adherence over time between patients with and without cancer were not determined to be statistically significantly different by PCMH status. Some PCMH patients with cancer experienced smaller increases in expenditures (diabetes) and emergency department use (hyperlipidemia) but larger increases in their inpatient hospitalization rates (hypertension) compared with non-PCMH patients with cancer relative to patients without cancer.

CONCLUSIONS

PCMHs were not found to be associated with improvements in chronic disease medication adherence, but were associated with lower costs and emergency department visits among some low-income patients with cancer.

Right-Site Care Programme with a community-based family medicine clinic in Singapore: secondary data analysis of its impact on mortality and healthcare utilisation

OBJECTIVE

Stable patients with chronic conditions could be appropriately cared for at family medicine clinics (FMC) and discharged from hospital specialist outpatient clinics (SOCs). The Right-Site Care Programme with Frontier FMC emphasised care organised around patients in community rather than hospital-based providers, with one identifiable primary provider. This study evaluated impact of this programme on mortality and healthcare utilisation.

DESIGN

A retrospective study without randomisation using secondary data analysis of patients enrolled in the intervention matched 1:1 with unenrolled patients as controls.

SETTING

Programme was supported by the Ministry of Health in Singapore, a city-state nation in Southeast Asia with 5.6 million population.

PARTICIPANTS

Intervention group comprises patients enrolled from January to December 2014 (n=684) and control patients (n=684) with at least one SOC and no FMC attendance during same period.

INTERVENTIONS

Family physician in Frontier FMC managed patients in consultation with relevant specialist physicians or fully managed patients independently. Care teams in SOCs and FMC used a common electronic medical records system to facilitate care coordination and conducted regular multidisciplinary case conferences.

PRIMARY OUTCOME MEASURES

Deidentified linked healthcare administrative data for time period of January 2011 to December 2017 were extracted. Three-year postenrolment mortality rates and utilisation frequencies and charges for SOC, public primary care centres (polyclinic), emergency department attendances and emergency, non-day surgery inpatient and all-cause admissions were compared.

RESULTS

Intervention patients had lower mortality rate (HR=0.37, p<0.01). Among those with potential of postenrolment polyclinic attendance, intervention patients had lower frequencies (incidence rate ratio (IRR)=0.60, p<0.01) and charges (mean ratio (MR)=0.51, p<0.01). Among those with potential of postenrolment SOC attendance, intervention patients had higher frequencies (IRR=2.06, p<0.01) and charges (MR=1.86, p<0.01).

CONCLUSIONS

Intervention patients had better survival, probably because their chronic conditions were better managed with close monitoring, contributing to higher total outpatient attendance frequencies and charges.

Core Functions and Forms of Complex Health Interventions: a Patient-Centered Medical Home Illustration

Despite policy and practice support to develop and test interventions designed to increase access to quality care among high-need patients, many of these interventions fail to meet expectations once deployed in real-life clinical settings. One example is the Patient-Centered Medical Home (PCMH) model, designed to deliver coordinated care. A meta-analysis of PCMH initiatives found mixed evidence of impacts on service access, quality, and costs. Conceptualizing PCMH as a complex health intervention can generate insights into the mechanisms by which this model achieves its effects. It can also address heterogeneity by distinguishing PCMH core functions (the intervention's basic purposes) from forms (the strategies used to meet each function). We conducted a scoping review to identify core functions and forms documented in published PCMH models from 2007 to 2017. We analyzed and summarized the data to develop a PCMH Function and Form Matrix. The matrix contributes to the development of an explicit theory-based depiction of how an intervention achieves its effects, and can guide decision-support tools in the field. This innovative approach can support transformations of clinical settings and implementation efforts by building on a clear understanding of the intervention's standard core functions and the forms adapted to local contexts' characteristics.

Causal Difference-in-Differences Estimation for Evaluating the Impact of Semi-Continuous Medical Home Scores on Health Care for Children

Difference-in-differences (DID) is a popular approach in observational and quasi-experimental studies to estimate the effects of a treatment with discrete statuses. In many studies, however, the treatment can have a range of dosages or exposure levels. In our paper, "medical homeness" is a semi-continuous score ranging from 0 to 100 to indicate the extent to which a patient-centered medical home model is achieved. We developed a causal DID approach to estimating the effects of a treatment with semi-continuous dosages. The proposed approach allows for mixed-type designs as well as different propensity models. We applied the proposed approach to evaluate the dosage effect of medical homeness scores on the utilization and quality of children's health care. We found that there was a roughly linear effect of medical homeness scores on the annual number of visits to doctor offices when medical homeness scores were below 60 points. The number of office visits did not further increase when medical homeness scores were above 60. A similar relationship was found between medical homeness scores and ratings for health care quality.

The impact of patient-centered medical homes on medication adherence?

Accreditation of providers helps resolve the pervasive information asymmetries in health care markets. However, meeting accreditation standards typically involves flexibility in implementation, leading to heterogeneity in performance. For example, the patient-centered medical home (PCMH) is a leading model for recognizing high-performing primary care practices. Flexibility in PCMH implementation allows for varying degrees of emphasis on processes designed to enhance medication adherence. To assess the impact of the PCMH on adherence, we combine 6 years of detailed patient claims data with a novel dataset containing detailed practice-level PCMH attributes. We study the effects of the number and configuration of adherence-relevant capabilities, using variation in the timing of PCMH adoption to estimate its impact. While PCMH adoption improved overall medication adherence, when combining claims data with the unique recognition data detailing what PCMH capabilities were adopted, we find that these gains are concentrated among patients in practices that adopted more adherence-relevant capabilities. Despite mixed evidence in the literature concerning costs and utilization, our results indicate that PCMH recognition improves medication adherence.

The Medical Home Model and Pediatric Asthma Symptom Severity: Evidence from a National Health Survey

The objective was to investigate the association between receiving care under the medical home model and parental assessment of the severity of asthma symptoms. It was hypothesized that parents of children who received care under the medical home model reported less severe asthma symptoms compared with their counterparts, whose care did not meet the medical home criteria. Secondary analyses were conducted using cross-sectional data from the 2011-2012 National Survey of Children's Health. Children with asthma aged 0-17 years were included and classified as receiving care from the medical home if their care contained 5 components: a personal doctor, a usual source of sick care, family-centered care, no problems getting referrals, and effective care coordination. Ordinal logistic regression was used to examine the relationship between parent-rated severity of asthma symptoms (mild, moderate, and severe symptoms) and the medical home. Approximately 52% of 8229 children who reported having asthma received care from the medical home. Only 30.8% of children with severe asthma symptoms received care that met the medical home criteria, compared to 55.7% of children with mild symptoms. After accounting for confounding factors, obtaining care under the medical home model decreased the odds of parent-reported severe asthma symptoms by 31% (adjusted odds ratio 0.69; 95% CI, 0.56-0.85). Study results suggest that the medical home model can reduce parent-rated severity of asthma symptoms. The findings highlight the importance of providing medical home care to children with asthma to improve the outcomes that matter most to children and their families.

The Impact of Patient-Centered Medical Homes on Quality of Care and Medication Adherence in Patients with Diabetes Mellitus

BACKGROUND

Current evidence suggests that patient-centered medical homes (PCMHs) potentially increase overall quality of disease management, including preventive care. However, there are mixed findings regarding quality of diabetes care, and little evidence exists with respect to the effect of PCMHs on medication adherence in patients with diabetes.

OBJECTIVE

To investigate associations between PCMHs and process measures of diabetes care, as well as adherence to oral hypoglycemic agents (OHAs) in patients with diabetes in a nationally representative U.S.

SAMPLE

METHODS

Using the 2009-2013 longitudinal data files from the Medical Expenditure Panel Survey, adult diabetes patients were identified. Patients whose usual sources of care have all PCMH features at baseline (i.e., enhanced access after hours and online, shared decision making, and enhanced patient engagement) were categorized as the PCMH group, which was compared with patients without PCMH features. Process measures of diabetes care included ≥ 2 hemoglobin A1c tests and ≥ 1 cholesterol test, foot examination, dilated eye examination, and flu vaccination during 1 year of follow-up. Medication possession ratio (MPR) during follow-up was calculated for patients with OHAs without any insulin use, with MPR ≥ 80% considered to be adherent to OHAs. Univariate and multivariate regression models considering sampling strata and weights were used to examine the association between the PCMH and study outcomes.

RESULTS

A total of 3,334 patients with diabetes was identified, representing 61 million U.S. lives. The mean (SE) age was 61.6 (0.3) years, and 52.4% of patients were female. The mean (SE) years of having diabetes was 12.0 (0.2) years. Approximately 11.4% of the patients were categorized as the PCMH group at baseline, and only 3.6% of those patients remained in the PCMH group for 2 years. Of the diabetic patients identified, only 26.9% met all of the diabetes care process measure criteria defined in this study. A higher proportion of patients met process measure criteria in the PCMH group compared with the non-PCMH group (33.8% vs. 26.0%, respectively, P = 0.015). The weighted mean MPR (95% CI) of OHAs from the 2 groups were not statistically different (0.68, 95% CI = 0.63-0.74 for the PCMH group; 0.77, 95% CI = 0.72-0.82 for the non-PCMH group, P = 0.675), resulting in 47.4% of adherent patients in the study population. Overall, the PCMH group was associated with improvement in the process measures of diabetes care (adjusted odds ratios [OR] = 1.42, 95% CI = 1.06-1.91). The effect was greater among the patients who stayed in the PCMH group for 2 years (OR = 2.09, 95% CI = 1.27-3.45); were aged < 65 years (OR = 2.19, 95% CI = 1.47-3.28); or had less than 3 comorbid conditions (OR = 2.38, 95% CI = 1.46-3.88). However, the PCMH group was not associated with an increased adherence to OHAs (P = 0.495) or an increase in MPR (P = 0.570).

CONCLUSIONS

Patients with all PCMH features were associated with improvement in the process measures of diabetes care, but not in adherence to OHAs. Future studies should investigate the mechanism of PCMHs in overall quality of care, as well as medication adherence.

DISCLOSURES

No outside funding supported this study. The author reports no conflicts of interests.

Evaluating the Impact of Parent-Reported Medical Home Status on Children's Health Care Utilization, Expenditures, and Quality: A Difference-in-Differences Analysis with Causal Inference Methods

OBJECTIVE

To evaluate the effects of the parent-reported medical home status on health care utilization, expenditures, and quality for children.

DATA SOURCES

Medical Expenditure Panel Survey (MEPS) during 2004-2012, including a total of 9,153 children who were followed up for 2 years in the survey.

STUDY DESIGN

We took a causal difference-in-differences approach using inverse probability weighting and doubly robust estimators to study how changes in medical home status over a 2-year period affected children's health care outcomes. Our analysis adjusted for children's sociodemographic, health, and insurance statuses. We conducted sensitivity analyses using alternative statistical methods, different approaches to outliers and missing data, and accounting for possible common-method biases.

PRINCIPAL FINDINGS

Compared with children whose parents reported having medical homes in both years 1 and 2, those who had medical homes in year 1 but lost them in year 2 had significantly lower parent-reported ratings of health care quality and higher utilization of emergency care. Compared with children whose parents reported having no medical homes in both years, those who did not have medical homes in year 1 but gained them in year 2 had significantly higher ratings of health care quality, but no significant differences in health care expenditures and utilization.

CONCLUSIONS

Having a medical home may help improve health care quality for children; losing a medical home may lead to higher utilization of emergency care.

The Impact of Alternative Payment in Chronically Ill and Older Patients in the Patient-centered Medical Home

BACKGROUND

Patient-centered medical home (PCMH) has gained prominence as a promising model to encourage improved primary care delivery. There is a paucity of studies that evaluate the impact of payment models in the PCMH.

OBJECTIVES

We sought to examine whether coupling coordinated, team-based care transformation plan with a novel reimbursement model affects outcomes related to expenditures and utilization.

RESEARCH DESIGN

Interrupted time-series model with a difference-in-differences approach to assess differences between intervention and control groups, across time periods attributable to PCMH transformation and/or payment change.

RESULTS

Although results were modest and mixed overall, PCMH with payment reform is associated with a reduction of $1.04 (P=0.0347) per member per month (PMPM) in pharmacy expenditures. Patients with hypertension, hyperlipidemia, diabetes, and coronary atherosclerosis enrolled in PCMH without payment reform experienced reductions in emergency department visits of 2.16 (P<0.0001), 2.42 (P<0.0001), 3.98 (P<0.0001), and 3.61 (P<0.0001) per 1000 per month. Modest increases in inpatient admission were seen among these patients in PCMH either with or without payment reform. Patients 65 and older enrolled in PMCH without payment reform experienced reductions in pharmacy expenditures $2.35 (P=0.0077) PMPM with a parallel reduction in pharmacy standardized cost of $2.81 (P=0.0174) PMPM indicative of a reduction in the intensity of drug utilization.

CONCLUSIONS

We conclude that PCMH implementation coupled with an innovative payment arrangement generated mixed results with modest improvements with respect to pharmacy expenditures, but no overall financial improvement. However, we did see improvement within specific groups, especially older patients and those with chronic conditions.

Association between medical home enrollment and health care utilization and costs among breast cancer patients in a state Medicaid program

BACKGROUND

The patient-centered medical home (PCMH) is increasingly being implemented in an effort to improve and coordinate primary care, but its effect on health care utilization among breast cancer patients remains unclear. The objective of this study was to examine health care utilization and expenditures as a function of PCMH enrollment among breast cancer patients in North Carolina's Medicaid program.

METHODS

North Carolina Medicaid claims linked to North Carolina Central Cancer Registry records (2003-2007) were used to examine monthly patterns of health care use and expenditures. Controlling for a selection bias for time-invariant characteristics, fixed effects regression models analyzed associations between PCMH enrollment and utilization of outpatient, inpatient, and emergency department (ED) services and Medicaid expenditures during the 15 months after the diagnosis of breast cancer.

RESULTS

Among 758 breast cancer patients, 381 (50%) were enrolled in a PCMH at some time in the 15 months after diagnosis. After controlling for individual fixed effects, PCMH enrollment was significantly associated with greater outpatient service use, but there was no difference in the probability of inpatient hospitalizations or ED visits. Enrollment in a PCMH was associated with increased average expenditures of $429 per month during the first 15 months.

CONCLUSIONS

Greater outpatient care utilization and increased average expenditures among breast cancer patients enrolled in a PCMH may suggest that these women have improved access to primary and specialty care. Expanding PCMHs may change patterns of service utilization for Medicaid breast cancer patients but may not be associated with lower costs.

Development and validation of the Medical Home Care Coordination Survey for assessing care coordination in the primary care setting from the patient and provider perspectives

Background

Community health centers are increasingly embracing the Patient Centered Medical Home (PCMH) model to improve quality, access to care, and patient experience while reducing healthcare costs. Care coordination (CC) is an important element of the PCMH model, but implementation and measurability of CC remains a problem within the outpatient setting. Assessing CC is an integral component of quality monitoring in health care systems. This study developed and validated the Medical Home Care Coordination Survey (MHCCS), to fill the gap in assessing CC in primary care from the perspectives of patients and their primary healthcare teams.

Methods

We conducted a review of relevant literature and existing care coordination instruments identified by bibliographic search and contact with experts. After identifying all care coordination domains that could be assessed by primary healthcare team members and patients, we developed a conceptual model. Potentially appropriate items from existing published CC measures, along with newly developed items, were matched to each domain for inclusion. A modified Delphi approach was used to establish content validity. Primary survey data was collected from 232 patients with care transition and/or complex chronic illness needs from the Community Health Center, Inc. and from 164 staff members from 12 community health centers across the country via mail, phone and online survey. The MHCCS was validated for internal consistency, reliability, discriminant and convergent validity. This study was conducted at the Community Health Center, Inc. from January 15, 2012 to July 15, 2014.

Results

The 13-item MHCCS - Patient and the 32-item MHCCS - Healthcare Team were developed and validated. Exploratory Structural Equation Modeling was used to test the hypothesized domain structure. Four CC domains were confirmed from the patient group and eight were confirmed from the primary healthcare team group. All domains had high reliability (Cronbach’s α scores were above 0.8).

Conclusions

Patients experience the ultimate output of care coordination services, but primary healthcare staff members are best primed to perceive many of the structural elements of care coordination. The proactive measurement and monitoring of the core domains from both perspectives provides a richer body of information for the continuous improvement of care coordination services. The MHCCS shows promise as a valid and reliable assessment of these CC efforts.

Electronic supplementary material

The online version of this article (doi:10.1186/s12913-015-0893-1) contains supplementary material, which is available to authorized users.

The business case for pediatric asthma quality improvement in low-income populations: examining a provider-based pay-for-reporting intervention

OBJECTIVE

To measure the return on investment (ROI) for a pediatric asthma pay-for-reporting intervention initiated by a Medicaid managed care plan in New York State.

DESIGN

Practice-level, randomized prospective evaluation.

SETTING

Twenty-five primary care practices providing care to children enrolled in the Monroe Plan for Medical Care (the Monroe Plan).

PARTICIPANTS

Practices were randomized to either treatment (13 practices, 11 participated) or control (12 practices).

INTERVENTION

For each of its eligible members assigned to a treatment group practice, the Monroe plan paid a low monthly incentive fee to the practice. To receive the incentive, treatment group practices were required to conduct, and report to the Monroe Plan, the results of chart audits on eligible members. Chart audits were conducted by practices every 6 months. After each chart audit, the Monroe Plan provided performance feedback to each practice comparing its adherence to asthma care guidelines with averages from all other treatment group practices. Control practices continued with usual care.

MAIN OUTCOME MEASURES

Intervention implementation and operating costs and per member, per month claims costs. ROI was measured by net present value (discounted cash flow analysis).

RESULTS

The ROI to the Monroe Plan was negative, primarily due to high intervention costs and lack of reductions in spending on emergency department and hospital utilization for children in treatment relative to control practices.

CONCLUSIONS

A pay-for-reporting, chart audit intervention is unlikely to achieve the meaningful reductions in utilization of high-cost services that would be necessary to produce a financial ROI in 2.5 years.

Emergency department and inpatient hospital use by Medicare beneficiaries in patient-centered medical homes

STUDY OBJECTIVE

Patient-centered medical homes are primary care practices that focus on coordinating acute and preventive care. Such practices can obtain patient-centered medical home recognition from the National Committee for Quality Assurance. We compare growth rates for emergency department (ED) use and costs of ED visits and hospitalizations (all-cause and ambulatory-care-sensitive conditions) between patient-centered medical homes recognized in 2009 or 2010 and practices without recognition.

METHODS

We studied a sample of US primary care practices and federally qualified health centers: 308 with and 1,906 without patient-centered medical home recognition, using fiscal year 2008 to 2010 Medicare fee-for-service data. We assessed average annual practice-level payments per beneficiary for ED visits and hospitalizations and rates of ED visits and hospitalizations (overall and ambulatory-care-sensitive condition) per 100 beneficiaries before and after patient-centered medical home recognition, using a difference-in-differences regression model comparing patient-centered medical homes and propensity-matched non-patient-centered medical homes.

RESULTS

Comparing patient-centered medical home with non-patient-centered medical home practices, the rate of growth in ED payments per beneficiary was $54 less for 2009 patient-centered medical homes and $48 less for 2010 patient-centered medical homes relative to non-patient-centered medical home practices. The rate of growth in all-cause and ambulatory-care-sensitive condition ED visits per 100 beneficiaries was 13 and 8 visits fewer for 2009 patient-centered medical homes and 12 and 7 visits fewer for 2010 patient-centered medical homes, respectively. There was no hospitalization effect.

CONCLUSION

From 2008 to 2010, outpatient ED visits increased more slowly for Medicare patients being treated by patient-centered medical home practices than comparison non-patient-centered medical homes. The reduction was in visits for both ambulatory-care-sensitive and non-ambulatory-care-sensitive conditions, suggesting that steps taken by practices to attain patient-centered medical home recognition such as improving care access may decrease some of the demand for outpatient ED care.

The future of obstetrics/gynecology in 2020: a clearer vision: finding true north and the forces of change

The pressure to transform health care has been building for many years, and many frameworks have been proposed for this transformation. The 'Triple Aim' concept of improving the health of the population, improving the experience of the patient, and controlling cost can be used as a guide post for the adoption of the necessary changes to thrive in a new construct of women's health care. Following these guiding principles should lead to improved clinical outcomes at affordable costs with high patient and provider satisfaction. The actual changes will come in the form of various 'transformational forces.' One of the driving forces will be conversion of the current payment structure from a fee-for-service model to value-based payments. In addition, the methods of care must be redesigned into a 'team-based' approach in which providers and patients use best practice protocols that are individualized to specific patient needs. Redesign will continue to drive consolidation of providers into larger groups to cover the cost of the needed infrastructure.

Improving medication adherence in hypercholesterolemia: challenges and solutions

Medication nonadherence is a prevalent public health issue that contributes to significant medical costs and detrimental health outcomes. This is especially true in patients with hypercholesterolemia, a condition affecting millions of American adults and one that is associated with increased risk for coronary and cerebrovascular events. Considering the magnitude of outcomes related to this disease, the medical community has placed significant emphasis on addressing the treatment for high cholesterol, and progress has been made in recent years. However, poor adherence to therapy continues to plague health outcomes and more must be understood and done to address suboptimal medication taking. Here we provide an overview of the reasons for poor medication adherence in patients with hypercholesterolemia and describe recent efforts to curb nonadherence. Suggested approaches for improving medication taking in patients with high cholesterol are also provided to guide practitioners, patients, and payers.

Do patient-centered medical homes reduce emergency department visits?

OBJECTIVE

To assess whether adoption of the patient-centered medical home (PCMH) reduces emergency department (ED) utilization among patients with and without chronic illness.

DATA SOURCES

Data from approximately 460,000 Independence Blue Cross patients enrolled in 280 primary care practices, all converting to PCMH status between 2008 and 2012.

RESEARCH DESIGN

We estimate the effect of a practice becoming PCMH-certified on ED visits and costs using a difference-in-differences approach which exploits variation in the timing of PCMH certification, employing either practice or patient fixed effects. We analyzed patients with and without chronic illness across six chronic illness categories.

PRINCIPAL FINDINGS

Among chronically ill patients, transition to PCMH status was associated with 5-8 percent reductions in ED utilization. This finding was robust to a number of specifications, including analyzing avoidable and weekend ED visits alone. The largest reductions in ED visits are concentrated among chronic patients with diabetes and hypertension.

CONCLUSIONS

Adoption of the PCMH model was associated with lower ED utilization for chronically ill patients, but not for those without chronic illness. The effectiveness of the PCMH model varies by chronic condition. Analysis of weekend and avoidable ED visits suggests that reductions in ED utilization stem from better management of chronic illness rather than expanding access to primary care clinics.

The patient-centered medical home: an evaluation of a single private payer demonstration in New Jersey

BACKGROUND

The patient-centered medical home (PCMH) has increasingly been looked to by policy makers, health care providers, and private insurers as a potential solution to the fragmented and inefficient US health care system. Whether the PCMH achieves these goals is not known.

OBJECTIVES

To evaluate a PCMH demonstration project implemented in 2011 in 8 New Jersey primary care practices covering over 10,000 plan members.

RESEARCH DESIGN

We conduct difference-in-differences analysis, comparing changes in outcomes at 8 medical home practices to a group of 24 comparison practices before (2010) and after (2011) the medical home implementation occurred. We use Mahalanobis distance matching to select the 24 comparison practices, matching on practice characteristics. We focus on the effect of the PCMH pilot on 3 groups of outcomes: health care utilization, costs, and quality.

RESULTS

The study cohort included 35,059 members during the study period 2010-2011-10,004 in the 8 PCMH practices and 25,055 in the 24 comparison practices. Health care utilization and costs did not significantly change with adoption of the PCMH model. In testing for changes in Healthcare Effectiveness and Data Information Set (HEDIS) quality measures, rates of mammography increased in PCMH practices after PCMH implementation compared to non-PCMH practices, by 2.2 percentage points on a base of 69.5% (P<0.001). Rates of nephropathy screening also increased (by 6.6 percentage points on a base of 51.8%; P=0.05). Changes in 7 other HEDIS quality measures following PCMH implementation were not statistically significant.

CONCLUSIONS

We find little evidence of reductions in health care utilization or cost and minimal evidence of improvements in quality of care. Ongoing work is needed to understand why this model of care seems to work in some cases and not others and to evaluate how to improve the medical home.

Is medical home enrollment associated with receipt of guideline-concordant follow-up care among low-income breast cancer survivors?

BACKGROUND

Community Care of North Carolina (CCNC) initiated an innovative medical home program in the 1990 s to improve primary care in Medicaid-insured populations. CCNC has been successful in improving asthma, diabetes, and cardiovascular outcomes but has not been evaluated in the context of cancer care. We explored whether CCNC enrollment was associated with guideline-concordant follow-up care among breast cancer survivors.

METHODS

Using state cancer registry records matched to Medicaid claims, we identified women 18 to 64 years old who were diagnosed with stage 0, I, II, or unstaged breast cancer from 2003 to 2007 and tracked their monthly CCNC enrollment. Using published American Society for Clinical Oncology guidelines to define our outcomes, we employed multivariate logistic regressions to examine, as a function of CCNC enrollment, receipt of mammogram and at least 2 physical examinations/history-taking visits within observational windows consistent with the guidelines.

RESULTS

Of the 840 women, approximately half were enrolled into the CCNC for some time during the study period. Between 40% and 85% received follow-up mammogram in accordance with guidelines, with significant variation by CCNC status, and 95% of women received at least 2 physical examinations/history-taking visits. In multivariate models, increasing months of CCNC enrollment was significantly positively associated with receipt of follow-up mammogram but not with physical examinations/history-taking visits.

CONCLUSIONS

Results suggest that CCNC enrollment is associated with guideline-concordant follow-up care for Medicaid-insured survivors. Given the growing population of cancer survivors and increased emphasis on primary care medical homes, future studies should explore what factors are associated with medical home participation and whether similar findings are observed with extended follow-up.

Does the patient-centred medical home work? A critical synthesis of research on patient-centred medical homes and patient-related outcomes

Health-care systems in the USA and most of western Europe face challenges in the coordination and integration of care for patients, particularly those with chronic conditions. In response to these problems, interest in the patient-centred medical home (PCMH) model has increased significantly in recent years in the USA, with PCMH implementation underway in a wide variety of practice settings across the country. Despite this enthusiasm, there have been relatively few attempts to examine the empirical evidence on the effects of PCMH on quality and access-related outcomes for patients. This article reviews findings from empirical evaluations of the effects of PCMH on patient-related outcomes and critically examines methodological and conceptual issues in the growing body of PCMH literature. The results of this review suggest that published evaluations are predominantly weighted towards findings that indicate that PCMH is associated with a wide range of positive patient outcomes. However, methodological and measurement issues present in much of this research should be considered when evaluating these findings. The article concludes with recommendations for future PCMH evaluation.

Do medical homes reduce disparities in receipt of preventive services between children living in immigrant and non-immigrant families?

The patient-centered medical home model has the potential to reduce healthcare disparities among immigrant children. The purpose of this study is to examine the relationship between medical home (MH) participation and receipt of preventive services among immigrant children age 0-17. The study employed extant data from the National Survey of Children's Health, 2007 (NSCH). Logistic regression analyses were employed to assess the relationship between receipt of preventive services and MH status among immigrant and non-immigrant children. Due to primarily the lack of family-centered care, only 40% of immigrant children met the medical home criteria versus approximately 62% of non-immigrant children. Immigrant children have decreased odds of receiving preventive care despite MH status. Improving the family-centered care aspect of the MH is necessary to increasing medical home access to immigrant children and the receipt of preventive services for immigrant children who meet the MH criteria.

The patient-centered medical home: a review of recent research

The patient-centered medical home is an important innovation in health care delivery. There is a need to assess the scope and substance of published research on medical homes. This article reviews published evaluations of medical home care for the period 2007 to 2010. Chief findings from these evaluations as a whole include associations between the provision of medical home care and improved quality, in addition to decreased utilization associated with medical home care in high-cost areas such as emergency department use. However, fewer associations were found across evaluations between medical home care and enhanced patient or family experiences. The early medical home research appears to reflect both the wide variation in how medical homes are being designed and implemented in practice and in how researchers are choosing to evaluate patient-centered medical home design and implementation. While some aspects of medical home care show promise, continued evolution of medical home evaluative research is needed.

Health care use and expenditures associated with access to the medical home for children and youth

BACKGROUND

The pediatric medical home is an approach to the delivery of family-centered health care. Policy-makers and payers are interested in potential changes to health care utilization and expenditures under this model.

OBJECTIVE

To test associations between having a medical home and health service use and expenditures among US children and youth.

RESEARCH DESIGN

Observational cross-sectional study.

SUBJECTS

A total of 26,221 children aged 0 to 17 years surveyed in the 2005 to 2007 Medical Expenditure Panel Surveys.

MEASURES

Parent report of a child's access to a medical home was developed from multiple survey items in the Medical Expenditure Panel Surveys. Negative binomial regression examined the association between the medical home and parent-reported counts of annual outpatient, inpatient, emergency department, and dental visits. Two-part models examined associations between the medical home and parent-reported annual total, outpatient, inpatient, emergency department, and other health care expenditures. Models accounted for potential self-selection into a medical home using propensity scores.

RESULTS

Children with a medical home had a greater incidence of preventive visits [incidence rate ratio (IRR)=1.11; (95% confidence intervals (CI), 1.03-1.20)] and dental visits [IRR=1.09 (95% CI, 1.02-1.17)] and a lower incidence of emergency department visits [IRR=0.87 (95% CI, 0.79-0.97)] compared with children without a medical home. Children with a medical home also had greater odds of incurring total, outpatient, prescription medication, and dental expenditures, OR's ranging from 1.09 to 1.38. Despite greater odds of incurring certain expenditures, expenditures were no different for children with and without a medical home.

CONCLUSIONS

The medical home is associated with several domains of health service use, yet there is no evidence for its association with health care expenditures for children and youth.

Organizational capacity to deliver effective treatments for children and adolescents

Treatment and services research in the general medical sector has emphasized the importance of addressing organizational capacity to improve interventions for patients with chronic conditions. Efficacious interventions for child and adolescent mental disorders without substantial enhancements in mental health organizational capacity will not result in improvements for children. This paper (a) lists some organizational enhancements that have resulted in improved medical care, (b) briefly underscores recent market trends such as state healthcare reform efforts, increased use of electronic records and contracting initiatives that push consolidation of agencies, and (c) describes one example of the organizational development of child behavioral services that will enhance treatment delivery.

Defining and measuring the patient-centered medical home

The patient-centered medical home (PCMH) is four things: 1) the fundamental tenets of primary care: first contact access, comprehensiveness, integration/coordination, and relationships involving sustained partnership; 2) new ways of organizing practice; 3) development of practices' internal capabilities, and 4) related health care system and reimbursement changes. All of these are focused on improving the health of whole people, families, communities and populations, and on increasing the value of healthcare. The value of the fundamental tenets of primary care is well established. This value includes higher health care quality, better whole-person and population health, lower cost and reduced inequalities compared to healthcare systems not based on primary care. The needed practice organizational and health care system change aspects of the PCMH are still evolving in highly related ways. The PCMH will continue to evolve as evidence comes in from hundreds of demonstrations and experiments ongoing around the country, and as the local and larger healthcare systems change. Measuring the PCMH involves the following: Giving primacy to the core tenets of primary care. Assessing practice and system changes that are hypothesized to provide added value Assessing development of practices' core processes and adaptive reserve. Assessing integration with more functional healthcare system and community resources. Evaluating the potential for unintended negative consequences from valuing the more easily measured instrumental features of the PCMH over the fundamental relationship and whole system aspects. Recognizing that since a fundamental benefit of primary care is its adaptability to diverse people, populations and systems, functional PCMHs will look different in different settings. Efforts to transform practice to patient-centered medical homes must recognize, assess and value the fundamental features of primary care that provide personalized, equitable health care and foster individual and population health.