The Effect of Bariatric Surgery on Long-term Depression Treatment in Patients With Obesity.

OBJECTIVE: In a large multisite cohort of Veterans who underwent Roux-en-Y gastric bypass (RYGB) or laparoscopic sleeve gastrectomy (LSG), initiation of (ie, incident) and persistence of (ie, continuation of preoperative) depression treatment are compared with matched nonsurgical controls. BACKGROUND: Bariatric surgery has been associated with short-term improvements in depression but less is known about longer term outcomes. METHODS: In a retrospective cohort study, we matched 1713 Veterans with depression treatment who underwent bariatric surgery in Veterans Administration bariatric centers from fiscal year 2001 to 2016 to 15,056 nonsurgical controls using sequential stratification and examined the persistence of depression treatment via generalized estimating equations. Incidence of depression treatment was compared using Cox regression models between 2227 surgical patients and 20,939 matched nonsurgical controls without depression treatment at baseline. RESULTS: In surgical patients with depression treatment at baseline, the use of postsurgical depression treatment declined over time for both surgical procedures, but postsurgical patients had greater use of depression treatment at 5 years [RYGB: odds ratio=1.24, 95% confidence interval (CI): 1.04-1.49; LSG: odds ratio=1.27, 95% CI: 1.04-1.56] compared with controls. Among those without depression treatment at baseline, bariatric surgery was associated with a higher incidence of depression treatment compared with matched controls (RYGB: hazard ratio=1.34, 95% CI: 1.17-1.53; LSG: hazard ratio at 1-5 years=1.27, 95% CI: 1.10-1.47). CONCLUSIONS: Bariatric surgery was associated with a greater risk of postoperative incident depression treatment and greater persistence of postoperative depression treatment. Depression may worsen for some patients after bariatric surgery, so clinicians should carefully monitor their patients for depression postoperatively.

How Did Veterans' Reliance on Veterans Health Administration Outpatient Care Change After Expansion of the Veterans Community Care Program?

BACKGROUND: The Veterans Community Care Program (VCCP) aims to address access constraints in the Veterans Health Administration (VA) by reimbursing care from non-VA community providers. Little existing research explores how veterans' choice of VA versus VCCP providers has evolved as a significant VCCP expansion in 2014 as part of the Veterans Access, Choice, and Accountability Act. OBJECTIVES: We examined changes in reliance on VA for primary care (PC), mental health (MH), and specialty care (SC) among VCCP-eligible veterans. RESEARCH DESIGN: We linked VA administrative data with VCCP claims to retrospectively examine utilization during calendar years 2016-2018. SUBJECTS: 1.78 million veterans enrolled in VA before 2013 and VCCP-eligible in 2016 due to limited VA capacity or travel hardship. MEASURES: We measured reliance as the proportion of total annual outpatient (VA+VCCP) visits occurring in VA for PC, MH, and SC. RESULTS: Of the 26.1 million total outpatient visits identified, 45.6% were for MH, 29.9% for PC, and 24.4% for SC. Over the 3 years, 83.2% of veterans used any VA services, 23.8% used any VCCP services, and 20.0% were dual VA-VCCP users. Modest but statistically significant declines in reliance were observed from 2016-2018 for PC (94.5%-92.2%), and MH (97.8%-96.9%), and a more significant decline was observed for SC (88.5%-79.8%). CONCLUSIONS: Veterans who have the option of selecting between VA or VCCP providers continued using VA for most of their outpatient care in the initial years after the 2014 VCCP expansion.

Burden and Cost of Caring for US Veterans With CKD: Initial Findings From the VA Renal Information System (VA-REINS).

Kidney disease is a common, complex, costly, and life-limiting condition. Most kidney disease registries or information systems have been limited to single institutions or regions. A national US Department of Veterans Affairs (VA) Renal Information System (VA-REINS) was recently developed. We describe its creation and present key initial findings related to chronic kidney disease (CKD) without kidney replacement therapy (KRT). Data from the VA's Corporate Data Warehouse were processed and linked with national Medicare data for patients with CKD receiving KRT. Operational definitions for VA user, CKD, acute kidney injury, and kidney failure were developed. Among 7 million VA users in fiscal year 2014, CKD was identified using either a strict or liberal operational definition in 1.1 million (16.4%) and 2.5 million (36.3%) veterans, respectively. Most were identified using an estimated glomerular filtration rate laboratory phenotype, some through proteinuria assessment, and very few through International Classification of Diseases, Ninth Revision coding. The VA spent ∼$18 billion for the care of patients with CKD without KRT, most of which was for CKD stage 3, with higher per-patient costs by CKD stage. VA-REINS can be leveraged for disease surveillance, population health management, and improving the quality and value of care, thereby enhancing VA's capacity as a patient-centered learning health system for US veterans.

Thematic Analysis of Hospice Mentions in the Health Records of Veterans with Advanced Kidney Disease.

BACKGROUND: Patients with advanced kidney disease are less likely than many patients with other types of serious illness to enroll in hospice. Little is known about real-world clinical decision-making related to hospice for members of this population. METHODS: We used a text search tool to conduct a thematic analysis of documentation pertaining to hospice in the electronic medical record system of the Department of Veterans Affairs, for a national sample of 1000 patients with advanced kidney disease between 2004 and 2014 who were followed until October 8, 2019. RESULTS: Three dominant themes emerged from our qualitative analysis of the electronic medical records of 340 cohort members with notes containing hospice mentions: (1) hospice and usual care as antithetical care models: clinicians appeared to perceive a sharp demarcation between services that could be provided under hospice versus usual care and were often uncertain about hospice eligibility criteria. This could shape decision-making about hospice and dialysis and made it hard to individualize care; (2) hospice as a last resort: patients often were referred to hospice late in the course of illness and did not so much choose hospice as accept these services after all treatment options had been exhausted; and (3) care complexity: patients' complex care needs at the time of hospice referral could complicate transitions to hospice, stretch the limits of home hospice, and promote continued reliance on the acute care system. CONCLUSIONS: Our findings underscore the need to improve transitions to hospice for patients with advanced kidney disease as they approach the end of life.

Events Associated With Changes in Reliance on the Veterans Health Administration Among Medicare-eligible Veterans.

OBJECTIVES: We can learn something about how Veterans value the Veterans Health Administration (VHA) versus community providers by observing Veterans' choices between VHA and Medicare providers after they turn 65. For a cohort of Veterans who were newly age-eligible for Medicare, we estimated the change in VHA reliance (VHA outpatient visits divided by total VHA and Medicare visits) associated with specific events: receiving a life-threatening diagnosis, having a Medicare-paid hospitalization, or moving further from the VHA. RESEARCH DESIGN: A longitudinal cohort study of VHA and Medicare administrative data. SUBJECTS: A total of 5932 VHA users who completed a health survey in 1999 and became age-eligible for Medicare from 1998 to 2000 were followed through 2016. PRINCIPAL FINDINGS: More Veterans chose to rely on the VHA than Medicare (64% vs. 36.%). For a VHA-reliant Veteran, a Medicare-paid hospital stay was associated with a decrease of 7.8 percentage points (pps) (P<0.001) in VHA reliance in the subsequent 12 months, but by 36 months reliance increased to near prehospitalization levels (-1.5 pps; P=0.138). Moving further from the VHA, or receiving a diagnosis of cancer, heart failure, or renal failure had no significant association with subsequent VHA reliance; however, a diagnosis of dementia was associated with a decrease in VHA reliance (-8.6 pps; P=0.026). CONCLUSIONS: A significant majority of newly Medicare-eligible VHA users voted with their feet in favor of sustaining the VHA as a provider of comprehensive medical care for Veterans. These VHA-reliant Veterans maintained their reliance even after receiving a life-threatening diagnosis, and after experiencing Medicare-provided hospital care.

Ethical Concerns in the Care of Patients with Advanced Kidney Disease: a National Retrospective Study, 2000-2011.

BACKGROUND: Understanding ethical concerns that arise in the care of patients with advanced kidney disease may help identify opportunities to support medical decision-making. OBJECTIVE: To describe the clinical contexts and types of ethical concerns that arise in the care of patients with advanced kidney disease. DESIGN: Retrospective cohort study. PARTICIPANTS: A total of 28,568 Veterans with advanced kidney disease between 2000 and 2009 followed through death or 2011. EXPOSURE: Clinical scenarios that prompted clinicians to consider an ethics consultation as documented in the medical record. MAIN MEASURES: Dialysis initiation, dialysis discontinuation, receipt of an intensive procedure during the final month of life, and hospice enrollment. KEY RESULTS: Patients had a mean age of 67.1 years, and the majority were male (98.5%) and white (59.0%). Clinicians considered an ethics consultation for 794 patients (2.5%) over a median follow-up period of 2.7 years. Ethical concerns involved code status (37.8%), dialysis (54.5%), other invasive treatments (40.6%), and noninvasive treatments (61.1%) and were related to conflicts between patients, their surrogates, and/or clinicians about treatment preferences (79.3%), who had authority to make healthcare decisions (65.9%), and meeting the care needs of patients versus obligations to others (10.6%). Among the 20,583 patients who died during follow-up, those for whom clinicians had considered an ethics consultation were less likely to have been treated with dialysis (47.6% versus 62.0%, adjusted odds ratio [aOR] 0.63, 95% CI 0.53-0.74), more likely to have discontinued dialysis (32.5% versus 20.9%, aOR 2.07, CI 1.61-2.66), and less likely to have received an intensive procedure in the last month of life (8.9% versus 18.9%, aOR 0.41, CI 0.32-0.54) compared with patients without documentation of clinicians having considered consultation. CONCLUSIONS: Clinicians considered an ethics consultation for patients with advanced kidney disease in situations of conflicting preferences regarding dialysis and other intensive treatments, especially when these treatments were not pursued.

Time and Organizational Cost for Facilitating Implementation of Primary Care Mental Health Integration.

BACKGROUND: Integrating mental health services into primary care settings is complex and challenging. Although facilitation strategies have successfully supported implementation of primary care mental health integration and other complex innovations, we know little about the time required or its cost. OBJECTIVE: To examine the time and organizational cost of facilitating implementation of primary care mental health integration. DESIGN: Descriptive analysis. PARTICIPANTS: One expert external facilitator and two internal regional facilitators who helped healthcare system stakeholders, e.g., leaders, managers, clinicians, and non-clinical staff, implement primary care mental health integration at eight clinics. INTERVENTION: Implementation facilitation tailored to the needs and resources of the setting and its stakeholders. MAIN MEASURES: We documented facilitators' and stakeholders' time and types of activities using a structured spreadsheet collected from facilitators on a weekly basis. We obtained travel costs and salary information. We conducted descriptive analysis of time data and estimated organizational cost. KEY RESULTS: The external facilitator devoted 263 h (0.09 FTE), including travel, across all 8 clinics over 28 months. Internal facilitator time varied across networks (1792 h versus 1169 h), as well as clinics. Stakeholder participation time was similar across networks (1280.6 versus 1363.4 person hours) but the number of stakeholders varied (133 versus 199 stakeholders). The organizational cost of providing implementation facilitation also varied across networks ($263,490 versus $258,127). Stakeholder participation accounted for 35% of the cost of facilitation activities in one network and 47% of the cost in the other. CONCLUSIONS: Although facilitation can improve implementation of primary care mental health integration, it requires substantial organizational investments that may vary by site and implementation effort. Furthermore, the cost of using an external expert to transfer facilitation skills and build capacity for implementation efforts appears to be minimal.

Comparable, but distinct: Perceptions of primary care provided by physicians and nurse practitioners in full and restricted practice authority states.

AIMS: To understand patients' and providers' perceptions of primary care delivered by nurse practitioners (NPs) in the Veterans Affairs Healthcare System. DESIGN: Qualitative exploratory study (in convergent mixed-methods design). METHODS: Semi-structured interviews in 2016 with primary care providers and patients from facilities in states with full and restricted practice authority for NPs. Patient sample based on reassignment to: (a) a NP; or (b) a different physician following an established physician relationship. Data were analysed using content analysis. RESULTS: We interviewed 28 patients, 17 physicians and 14 NPs. We found: (a) NPs provided more holistic care than physicians; (b) patients were satisfied with NPs; and (c) providers' professional experience outweighed provider type. CONCLUSIONS: Patients' preferences for NPs (compared with prior physicians) contributed to perceptions of patient centredness. Similarities in providers' perceptions suggest NPs and physicians are both viable providers for primary care. IMPACT: Nurse Practitioners (NPs): practice authority Veterans Affairs Health care: nurse practitioners will continue to be a viable resource for primary care delivery United States Health care: challenges notions patients may not be satisfied with care provided by NPs and supports expanding their use to provide much-needed access to primary care services; expanding Full Practice Authority would allow states to provide acceptable primary care without diminishing patient or provider experiences.

Predicting Primary Care Use Among Patients in a Large Integrated Health System: The Role of Patient Experience Measures.

OBJECTIVE: Most Veterans Affairs (VA) Health Care System enrollees age 65+ also have the option of obtaining care through Medicare. Reliance upon VA varies widely and there is a need to optimize its prediction in an era of expanding choice for veterans to obtain care within or outside of VA. We examined whether survey-based patient-reported experiences improved prediction of VA reliance. METHODS: VA and Medicare claims in 2013 were linked to construct VA reliance (proportion of all face-to-face primary care visits), which was dichotomized (=1 if reliance >50%). We predicted reliance in 83,143 Medicare-eligible veterans as a function of 61 baseline characteristics in 2012 from claims and the 2012 Survey of Healthcare Experiences of Patients. We estimated predictive performance using the cross-validated area under the receiver operating characteristic (AUROC) curve, and assessed variable importance using the Shapley value decomposition. RESULTS: In 2012, 68.9% were mostly VA reliant. The AUROC for the model including claims-based predictors was 0.882. Adding patient experience variables increased AUROC to 0.890. The pseudo R for the full model was 0.400. Baseline reliance and patient experiences accounted for 72.0% and 11.1% of the explained variation in reliance. Patient experiences related to the accessibility of outpatient services were among the most influential predictors of reliance. CONCLUSION: The addition of patient experience variables slightly increased predictive performance. Understanding the relative importance of patient experience factors is critical for informing what VA reform efforts should be prioritized following the passage of the 2018 MISSION Act.

Spillover Effects of Massachusetts Health Reform on Mental Health Use by VA and Medicare Dual Enrollees.

Older veterans can obtain care from the Veterans Affairs Health System (VA), Medicare or both. We examined whether their use of mental health care was impacted by capacity effects stemming from younger, uninsured veterans' enrolling in VA to satisfy the individual mandate within Massachusetts Health Reform (MHR). Using administrative data, we applied a difference-in-difference approach to compare pre-post changes in mental health use following MHR implementation. Findings indicated MHR was associated with increases in use through Medicare and the probability of dual VA-Medicare use. These results provide support for the possibility that limited capacity led to care seeking outside VA.

End-of-Life Care for Patients With Advanced Kidney Disease in the US Veterans Affairs Health Care System, 2000-2011.

BACKGROUND: Little is known about patterns of end-of-life care for patients with advanced kidney disease not treated with maintenance dialysis. STUDY DESIGN: Case series. SETTING & PARTICIPANTS: A sample of 14,071 patients with sustained estimated glomerular filtration rates < 15mL/min/1.73m2 treated in the US Veterans Affairs health care system who died during 2000 to 2011. Before death, 12,756 of these patients had been treated with dialysis, 503 had been discussing and/or preparing for dialysis therapy, and for 812, there had been a decision not to pursue dialysis therapy. OUTCOMES: Hospitalization and receipt of an intensive procedure during the final month of life, in-hospital death, and palliative care consultation and hospice enrollment before death. RESULTS: Compared with decedents treated with dialysis, those for whom a decision not to pursue dialysis therapy had been made were less often hospitalized (57.3% vs 76.8%; OR, 0.40 [95% CI, 0.34-0.46]), less often the recipient of an intensive procedure (3.5% vs 24.6%; OR, 0.15 [95% CI, 0.10-0.22]), more often the recipient of a palliative care consultation (52.6% vs 21.6%; OR, 4.19 [95% CI, 3.58-4.90]), more often used hospice services (38.7% vs 18.2%; OR, 3.32 [95% CI, 2.83-3.89]), and died less frequently in a hospital (41.4% vs 57.3%; OR, 0.78 [95% CI, 0.74-0.82]). Hospitalization (55.5%; OR, 0.39 [95% CI, 0.32-0.46]), receipt of an intensive procedure (13.7%; OR, 0.60 [95% CI, 0.46-0.77]), and in-hospital death (39.0%; OR, 0.47 [95% CI, 0.39-0.56]) were also less common among decedents who had been discussing and/or preparing for dialysis therapy, but their use of palliative care and hospice services was similar. LIMITATIONS: Findings may not be generalizable to groups not well represented in the Veterans Affairs health care system. CONCLUSIONS: Among decedents, patients not treated with dialysis before death received less intensive patterns of end-of-life care than those treated with dialysis. Decedents for whom there had been a decision not to pursue dialysis therapy before death were more likely to receive palliative care and hospice.

The Impact of a Change in the Price of VA Health Care on Utilization of VA and Medicare Services.

INTRODUCTION: The passage of the Veterans Access, Choice, and Accountability Act of 2014 has expanded the non-Veteran Affairs (VA) care options for eligible US Veterans. In order for these new arrangements to provide the best care possible for Veterans, it is important to understand the relationship between VA and non-VA care options. The purpose of this study was to use another recent VA policy change, one that increased the reimbursement rate that eligible Veterans receive for travel for health care to VA, to understand the use of VA and Medicare services among Medicare-enrolled Veterans. METHODS: We used a difference-in-difference technique to compare inpatient and outpatient utilization and cost in VA and Medicare between Veterans who were eligible for travel reimbursement and those who were not eligible following 2 increases in the travel reimbursement rate. We used generalized estimating equation models and 2-part models when cost outcomes were rare. RESULTS: Our cohort consisted of 110,007 Medicare-enrolled Veterans, including 25,076 under 65 and 84,931 over 65 years old. Following the travel reimbursement rate increases, the number of VA outpatient encounters increased for Veterans in our cohort regardless of age group or whether living in an urban or rural area. The number of non-VA outpatient encounters decreased significantly for Veterans in both age groups living in rural areas following these policy changes. CONCLUSIONS: Our estimates suggest that VA outpatient care may be a substitute for Medicare outpatient care for Medicare-enrolled Veterans living in rural areas. These results are important because they indicate how Veteran health care utilization might be affected by future policy changes designed to increase access to VA services. They also indicate the ripple effects that may occur in other health systems due to changes in the VA system.

The Burden of Mental Illness Among Veterans: Use of VHA Health Care Services by Those With Service-connected Conditions.

BACKGROUND: Little is known about how Veterans with service-connected conditions use health care provided by the Veterans Health Administration (VHA). OBJECTIVES: To ascertain what proportion of Veterans with service-connected conditions used VHA health care and whether it varied according to type of condition, combined disability rating, age, sex, military rank, or other characteristics and whether there were differences in receipt of inpatient and outpatient care. RESEARCH DESIGN: Cross-sectional analysis of administrative benefits and claims data for 2015 and 2016. SUBJECTS: In total, 4,029,672 Veterans who had an active award status for service-connected conditions in October 2016. MEASURES: Independent variables included age, sex, military rank, service branch, combined disability rating, Agent Orange exposure, and type of service-connected condition. The key-dependent variable was VHA health care use including specific types of health care utilization such as inpatient and outpatient services. RESULTS: In total, 52% of those with service-connected conditions used VHA health care. Type of condition and disability rating were associated with use. Over 65% of those with major depression, posttraumatic stress disorder (PTSD), Agent Orange exposure, or diabetes used VHA health care, as did 76% of those with a 100% rating. Almost one third of users of VHA health care were compensated for PTSD. In general, both inpatient and outpatient mental health services were frequently used by Veterans with service-connected mental health conditions. CONCLUSIONS: Veterans with service-connected conditions, particularly those with diabetes or mental illness such as depression or PTSD, depend heavily upon VHA for health care, including mental health services.

Impact of Multisystem Health Care on Readmission and Follow-up Among Veterans Hospitalized for Chronic Obstructive Pulmonary Disease.

BACKGROUND: Chronic obstructive pulmonary disease (COPD) is one of the most common causes of readmission at Veterans Affairs (VA) hospitals. Previous studies demonstrate worse outcomes for veterans with multisystem health care, though the impact of non-VA care on COPD readmissions is unknown. OBJECTIVE: To examine the association of use of non-VA outpatient care with 30-day readmission and 30-day follow-up among veterans admitted to the VA for COPD. DESIGN: This is a retrospective cohort study using VA administrative data and Medicare claims. SUBJECTS: In total, 20,472 Medicare-eligible veterans who were admitted to VA hospitals for COPD during October 1, 2008 and September 30, 2011. MEASURES: We identified the source of outpatient care during the year before the index hospitalization as VA-only, dual-care (VA and Medicare), and Medicare-only. Outcomes of interest included any-cause 30-day readmission, COPD-specific 30-day readmission and follow-up visit within 30 days of discharge. We used mixed-effects logistic regression, controlling for baseline severity of illness, to examine the association between non-VA care and postdischarge outcomes. RESULTS: There was no association between non-VA care and any-cause readmission. We did identify an increased COPD-specific readmission risk with both dual-care [odds ratio (OR)=1.20; 95% confidence interval (CI), 1.02-1.40] and Medicare-only (OR=1.41; 95% CI, 1.15-1.75). Medicare-only outpatient care was also associated with significantly lower rates of follow-up (OR=0.81; 95% CI, 0.72-0.91). CONCLUSIONS: Differences in disease-specific readmission risk may reflect differences in disease management between VA and non-VA providers. Further research is needed to understand how multisystem care affects coordination and other measures of quality for veterans with COPD.

Implementation of guideline-based therapy for chronic obstructive pulmonary disease: Differences between men and women veterans.

Chronic obstructive pulmonary disease (COPD) is common among both men and women, and guidelines recommend the same therapy for both sexes. While previous studies have identified gender differences in other chronic disease management, few studies have examined how implementation of COPD guidelines differs between men and women. We performed a cross-sectional study of veterans admitted to Veterans Affairs (VA) hospitals for COPD during October 1, 2008, to September 30, 2011. We collected information on baseline COPD medications during the 6 months prior to hospitalization and categorized therapies as "appropriate" or "inappropriate" based on current guidelines. We used multivariable logistic regression to examine the differences in COPD medications between men and women, after controlling for baseline patient characteristics. We also examined the differences in hospital outcomes, including length of stay and hospital readmission. We identified 33,558 veterans, including 1149 women and 32,409 men who were admitted to 130 VA hospitals. Women were significantly less likely to have received inhaler therapies prior to admission, with lower rates of short-acting beta agonists, short-acting muscarinic antagonists, long-acting beta agonists, and long-acting muscarinic antagonists compared to men. Women also received fewer appropriate inhaler combinations (odds ratio [OR] = 0.83, 95% confidence interval [CI] 0.74-0.93) and more inappropriate combinations (OR = 1.33, 95% CI 1.17-1.51). Women and men were prescribed similar rates of inhaled steroid and oral steroids. Hospital outcomes were also similar between the two groups. These findings highlight a potential gender disparity in appropriate outpatient COPD therapy. Improving the quality of care for patients with COPD should include equitable implementation of guideline-based COPD management.

Facility-Level Variation in Hospitalization, Mortality, and Costs in the 30 Days After Percutaneous Coronary Intervention: Insights on Short-Term Healthcare Value From the Veterans Affairs Clinical Assessment, Reporting, and Tracking System (VA CART) Program.

BACKGROUND: Policies to reduce unnecessary hospitalizations after percutaneous coronary intervention (PCI) are intended to improve healthcare value by reducing costs while maintaining patient outcomes. Whether facility-level hospitalization rates after PCI are associated with cost of care is unknown. METHODS AND RESULTS: We studied 32,080 patients who received PCI at any 1 of 62 Veterans Affairs hospitals from 2008 to 2011. We identified facility outliers for 30-day risk-standardized hospitalization, mortality, and cost. Compared with the risk-standardized average, 2 hospitals (3.2%) had a lower-than-expected hospitalization rate, and 2 hospitals (3.2%) had a higher-than-expected hospitalization rate. We observed no statistically significant variation in facility-level risk-standardized mortality. The facility-level unadjusted median per patient 30-day total cost was $23,820 (interquartile range, $19,604-$29,958). Compared with the risk-standardized average, 17 hospitals (27.4%) had lower-than-expected costs, and 14 hospitals (22.6%) had higher-than-expected costs. At the facility level, the index PCI accounted for 83.1% of the total cost (range, 60.3%-92.2%), whereas hospitalization after PCI accounted for only 5.8% (range, 2.0%-12.7%) of the 30-day total cost. Facilities with higher hospitalization rates were not more expensive (Spearman ρ=0.16; 95% confidence interval, -0.09 to 0.39; P=0.21). CONCLUSIONS: In this national study, hospitalizations in the 30 day after PCI accounted for only 5.8% of 30-day cost, and facility-level cost was not correlated with hospitalization rates. This challenges the focus on reducing hospitalizations after PCI as an effective means of improving healthcare value. Opportunities remain to improve PCI value by reducing the variation in total cost of PCI without compromising patient outcomes.

A First Look at PCMH Implementation for Minority Veterans: Room for Improvement.

BACKGROUND: Implementation of Patient Aligned Care Teams (PACT), a patient-centered medical home model, has been inconsistent among the >900 primary care facilities in the Veterans Health Administration. OBJECTIVE: Estimate if the degree of PACT implementation at a facility varied with the percentage of minority veteran patients at the facility. RESEARCH DESIGN: Cross-sectional, facility-level analysis of PACT implementation measures in 2012. SUBJECTS: Veterans Health Administration hospital-based and community-based primary care facilities. MEASURES: We used a previously validated PACT Implementation Progress Index (Pi) and its 8 domains: access, continuity of care, care coordination, comprehensiveness, self-management support, and patient-centered care and communication, shared decision-making domains, and team functioning. Facilities were categorized as low (<5.2%, n=208), medium (5.2%-25.8%, n=413), and high (>25.8%, n=206) percent minority based on the percent of their own veteran population. RESULTS: Most minority veterans received care in high minority (69%) and medium minority facilities (29%). In adjusted analyses, medium and high minority facilities scored 0.773 (P=0.009) and 0.930 (P=0.008) points lower on the Pi score relative to low minority facilities. Relative to low minority facilities, both medium and high minority facilities were less likely of having high Pi scores (≥2) and more likely of having low Pi scores (≤-2). Both medium and high minority facilities had the same 3 domain scores lower than low minority facilities (care coordination, comprehensiveness, and self-management). CONCLUSION: Overall PACT implementation varied with respect to the racial/ethnic composition of a facility, with medium and high minority facilities having a lower implementation scores.

Medicare-VHA dual use is associated with poorer chronic wound healing.

Veterans who use Veterans Health Affairs (VHA) have the option of enrolling in and obtaining care from other non-VA sources. Dual system use may improve care by increasing options or it may result in poorer outcomes because of fragmented care. Our objective was to assess whether dual system use of VHA and Medicare for wound care was associated with chronic wound healing. We conducted a retrospective cohort study of 227 Medicare-enrolled VHA users in the Pacific Northwest who had an incident, chronic lower limb wound between October 1, 2006 and September 30, 2007 identified through VHA chart review. All wounds were followed until resolution or for up to one year. Dual system wound care was identified through Medicare claims during follow-up. We used a proportional hazards model to compare wound healing among VHA-exclusive and dual wound care users, using a time-varying measure of dual use and treating amputation and death as competing risks. About 18.1% of subjects were classified as dual wound care users during follow-up. After adjustment using propensity scores, dual use was associated with a significantly lower hazard of wound healing compared to VHA-exclusive use (HR = 0.63, 95%CI: 0.39-0.99, p = 0.047). Hazards for the competing risks, amputation (HR = 4.23, 95% CI: 1.61-11.15, p = 0.003) and death (HR = 3.08, 95%CI: 1.11-8.56, p = 0.031), were significantly higher for dual users compared to VHA-exclusive users. Results were similar in inverse probability of treatment weighted analyses and in sensitivity analyses that excluded veterans enrolled in a Medicare managed care plan and that used a revised wound resolution date based on Medicare claims data, but were not always statistically significant. Overall, dual wound care use was associated with substantially poorer wound healing compared to VHA-exclusive wound care use. VHA may need to design programs or policies that support and improve care coordination for veterans needing chronic wound care.

Trends in the Timing and Clinical Context of Maintenance Dialysis Initiation.

Whether secular trends in eGFR at dialysis initiation reflect changes in clinical presentation over time is unknown. We reviewed the medical records of a random sample of patients who initiated maintenance dialysis in the Department of Veterans Affairs (VA) in fiscal years 2000-2009 (n=1691) to characterize trends in clinical presentation in relation to eGFR at initiation. Between fiscal years 2000-2004 and 2005-2009, mean eGFR at initiation increased from 9.8±5.8 to 11.0±5.5 ml/min per 1.73 m(2) (P<0.001), the percentage of patients with an eGFR of 10-15 ml/min per 1.73 m(2) increased from 23.4% to 29.9% (P=0.002), and the percentage of patients with an eGFR>15 ml/min per 1.73 m(2) increased from 12.1% to 16.3% (P=0.01). The proportion of patients who were acutely ill at the time of initiation and the proportion of patients for whom the decision to initiate dialysis was based only on level of kidney function did not change over time. Frequencies of documented clinical signs and/or symptoms were similar during both time periods. The adjusted odds of initiating dialysis at an eGFR of 10-15 or >15 ml/min per 1.73 m(2) (versus <10 ml/min per 1.73 m(2)) during the later versus earlier time period were 1.43 (95% confidence interval [95% CI], 1.13 to 1.81) and 1.46 (95% CI, 1.09 to 1.97), respectively. In conclusion, trends in eGFR at dialysis initiation at VA medical centers do not seem to reflect changes in the clinical context in which dialysis is initiated.

Reducing Time-dependent Bias in Estimates of the Attributable Cost of Health Care-associated Methicillin-resistant Staphylococcus aureus Infections: A Comparison of Three Estimation Strategies.

BACKGROUND: Previous estimates of the excess costs due to health care-associated infection (HAI) have scarcely addressed the issue of time-dependent bias. OBJECTIVE: We examined time-dependent bias by estimating the health care costs attributable to an HAI due to methicillin-resistant Staphylococcus aureus (MRSA) using a unique dataset in the Department of Veterans Affairs (VA) that makes it possible to distinguish between costs that occurred before and after an HAI. In addition, we compare our results to those from 2 other estimation strategies. METHODS: Using a historical cohort study design to estimate the excess predischarge costs attributable to MRSA HAIs, we conducted 3 analyses: (1) conventional, in which costs for the entire inpatient stay were compared between patients with and without MRSA HAIs; (2) post-HAI, which included only costs that occurred after an infection; and (3) matched, in which costs for the entire inpatient stay were compared between patients with an MRSA HAI and subset of patients without an MRSA HAI who were matched based on the time to infection. RESULTS: In our post-HAI analysis, estimates of the increase in inpatient costs due to MRSA HAI were $12,559 (P<0.0001) and $24,015 (P<0.0001) for variable and total costs, respectively. The excess variable and total cost estimates were 33.7% and 31.5% higher, respectively, when using the conventional methods and 14.6% and 11.8% higher, respectively, when using matched methods. CONCLUSIONS: This is the first study to account for time-dependent bias in the estimation of incremental per-patient health care costs attributable to HAI using a unique dataset in the VA. We found that failure to account for this bias can lead to overestimation of these costs. Matching on the timing of infection can reduce this bias substantially.