Decomposition of medical imaging spending growth between 2010 and 2021 in the US employer-insured population.

Medical imaging, identified as a potential driver of unsustainable US health care spending growth, was subject to policies to reduce prices and use in low-value settings. Meanwhile, the Affordable Care Act increased access to preventive services-many involving imaging-for employer-sponsored insurance (ESI) beneficiaries. We used a large insurance claims database to examine imaging spending trends in the ESI population between 2010 and 2021-a period of considerable policy and benefits changes. Nominal spending on imaging increased 35.9% between 2010 and 2021, but as a share of total health care spending fell from 10.5% to 8.9%. The 22.5% growth of nominal imaging prices was below inflation, 24.3%, as measured by the Consumer Price Index. Other key contributors to imaging spending growth were increased use (7.4 percentage points [pp]), shifts toward advanced modalities (4.0 pp), and demographic changes (3.5 pp). Shifts in care settings and provider network participation resulted in 2.5-pp and 0.3-pp imaging spending decreases, respectively. In sum, imaging spending decreased as a share of all health care spending and relative to inflation, as intended by concurrent cost-containment policies.

Episode-Based Cost Sharing to Prospectively Guarantee Patients' Out-of-Pocket Costs.

This Viewpoint proposes episode-based cost sharing as a way to prospectively guarantee out-of-pocket costs for patients while also preventing insurers from absorbing cost differentials created by unexpected complications of care.

Health-related quality of life among prostate cancer survivors with metastatic disease and non-metastatic disease and men without a cancer history in the USA.

BACKGROUND: Few studies have comprehensively compared health-related quality of life (HRQoL) between metastatic prostate cancer survivors, survivors with non-metastatic disease, and men without a cancer history. METHODS: We used the Surveillance, Epidemiology, and End Results-Medicare Health Outcomes Survey (SEER-MHOS) data linkage to identify men aged ≥ 65 years enrolled in Medicare Advantage (MA) plans. Prostate cancer survivors were diagnosed between 1988 and 2017 and completed MHOS surveys between 1998 and 2019. We analyzed data from 752 metastatic prostate cancer survivors (1040 survey records), 19,583 localized or regional prostate cancer survivors (non-metastatic; 30,121 survey records), and 784,305 men aged ≥ 65 years without a cancer history in the same SEER regions (1.15 million survey records). We used clustered linear regressions to compare HRQoL measures at the person-level using the Veterans RAND 12 Item Health Survey (VR-12) T-scores for general health and physical and mental component summaries. RESULTS: Compared to men without a cancer history, prostate cancer survivors were older, more likely to be married, and had higher socioeconomic status. Compared to men without a cancer history, metastatic prostate cancer survivors reported lower general health (T-score differences [95% confidence interval]: - 6.26, [- 7.14, - 5.38], p < .001), physical health (- 4.33, [- 5.18, - 3.48], p < .001), and mental health (- 2.64, [- 3.40, - 1.88], p < .001) component summaries. Results were similar for other VR-12 T-scores. In contrast, non-metastatic prostate cancer survivors reported similar VR-12 T-scores as men without a cancer history. Further analyses comparing metastatic and non-metastatic prostate cancer survivors support these findings. CONCLUSION: Interventions to improve health-related quality of life for men diagnosed with metastatic prostate cancer merit additional investigation. IMPLICATIONS FOR CANCER SURVIVORS: Interventions to improve health-related quality of life for metastatic prostate cancer survivors merit additional investigation.

Healthcare price transparency in North America and Europe.

Healthcare price transparency is an effort to inform patient decision-making, but also to decrease prices and their variation across healthcare systems for equivalent medical services. The initiative is meaningful only for medical services that are shoppable-such as imaging examinations-for which patients incur out-of-pocket costs. Therefore, several countries in which patients commonly share a portion of their healthcare costs have been implementing mandates to improve healthcare price transparency. However, the provisional implementation has many issues, especially in the United States, including provider non-compliance and limited accessibility of price transparency tools by the general public. Many of the existing tools are not user-friendly, are difficult to navigate, focus on charges and health plan negotiated rates rather than patients' out-of-pocket costs, and disclose prices on the service level instead of per episode of care. As such, the disclosed amounts are often not reliable. Many price transparency tools also lack valid and measurable quality metrics, which can result in a selection of high-cost care as a proxy for high-value care, as well as an increase in healthcare prices when providers want to imply they offer high-quality care. Nevertheless, the impact of the initiatives on patients' decision-making and healthcare costs remains unclear. While transparency initiatives are patient-centric, efforts should be made to increase patient engagement, provide accurate patient-specific out-of-pocket cost information, compare available treatment and provider alternatives, and couple price information with quality metrics to enable making fully informed decisions.

Patients' Perspectives Regarding Generator Exchanges of Implantable Cardioverter Defibrillators.

BACKGROUND: Shared decision-making is mandated for patients receiving primary prevention implantable cardioverter defibrillators (ICDs). Less attention has been paid to generator exchange decisions, although at the time of generator exchange, patients' risk of sudden cardiac death, risk of procedural complications, quality of life, or prognosis may have changed. This study was designed to explore how patients make ICD generator exchange decisions. METHODS: Emory Healthcare patients with primary prevention ICDs implanted from 2013 to 2021 were recruited to complete in-depth interviews exploring perspectives regarding generator exchanges. Interviews were conducted in 2021. Transcribed interviews were qualitatively coded using multilevel template analytic methods. To investigate benefit thresholds for pursuing generator exchanges, patients were presented standard-gamble type hypothetical scenarios where their ICD battery was depleted but their 5-year risk of sudden cardiac death at that time varied (10%, 5%, and 1%). RESULTS: Fifty patients were interviewed; 18 had a prior generator exchange, 16 had received ICD therapy, and 17 had improved left ventricular ejection fraction. As sudden cardiac death risk decreased from 10% to 5% to 1%, the number of participants willing to undergo a generator exchange decreased from 48 to 42 to 33, respectively. Responses suggest that doctor's recommendations are likely to substantially impact patients' decision-making. Other drivers of decision-making included past experiences with ICD therapy and device implantation, as well as risk aversion. Therapeutic inertia and misconceptions about ICD therapy were common and represent substantive barriers to effective shared decision-making in this context. CONCLUSIONS: Strong defaults may exist to continue therapy and exchange ICD generators. Updated risk stratification may facilitate shared decision-making and reduce generator exchanges in very low-risk patients, especially if these interventions are directed toward clinicians. Interventions targeting phenomena such as therapeutic inertia may be more impactful and warrant exploration in randomized trials.

Quantifying the Healthcare Burden of Pediatric Feeding Disorder after Congenital Heart Surgery.

OBJECTIVE: To determine the healthcare costs and use burden of pediatric feeding disorder after congenital heart surgery. STUDY DESIGN: A retrospective, population-based cohort study using claims data (2009-2018) was performed. Participants include patients aged 0-18 years who had undergone congenital heart surgery and were included in the insurance database ≥1 year after surgery. The main exposure variable was the presence of a pediatric feeding disorder, defined as a need for a feeding tube at discharge or diagnosis of dysphagia or feeding-related difficulty within the study timeframe. Main outcomes include overall and feeding-related medical care use, defined as readmissions and outpatient use, and feeding-related cost of care within 1 year of surgery. RESULTS: A total of 10 849 pediatric patients were identified, with 3347 (30.9%) presenting with pediatric feeding disorder within 1 year of surgery. Patients with pediatric feeding disorder spent a median of 12 days (IQR, 6-33 days) in the hospital, compared with 5 days (IQR, 3-8 days) in patients without (P < .001). Rate ratios for overall readmissions, feeding-related readmissions, feeding-related outpatient use, and cost of care over the first year after surgery were significantly increased at 2.9 (95% CI, 2.5-3.4), 5.1 (95% CI, 4.6-5.7), 7.7 (95% CI, 6.5-9.1), and 2.2 (95% CI, 2.0-2.3) among patients with pediatric feeding disorder as compared with those without. CONCLUSIONS: Pediatric feeding disorder after congenital heart surgery is associated with a significant healthcare burden. Multidisciplinary care for and research on this health condition is needed to identify optimal management strategies to reduce this burden and improve outcomes.

The cost burden of metastatic prostate cancer in the US populations covered by employer-sponsored health insurance.

BACKGROUND: Recent advancements in the clinical management of metastatic prostate cancer include several costly therapies and diagnostic tests. The objective of this study was to provide updated information on the cost to payers attributable to metastatic prostate cancer among men aged 18 to 64 years with employer-sponsored health plans and men aged 18 years or older covered by employer-sponsored Medicare supplement insurance. METHODS: By using Merative MarketScan commercial and Medicare supplemental data for 2009-2019, the authors calculated differences in spending between men with metastatic prostate cancer and their matched, prostate cancer-free controls, adjusting for age, enrollment length, comorbidities, and inflation to 2019 US dollars. RESULTS: The authors compared 9011 patients who had metastatic prostate cancer and were covered by commercial insurance plans with a group of 44,934 matched controls and also compared 17,899 patients who had metastatic prostate cancer and were covered by employer-sponsored Medicare supplement plans with a group of 87,884 matched controls. The mean age of patients with metastatic prostate cancer was 58.5 years in the commercial samples and 77.8 years in the Medicare supplement samples. Annual spending attributable to metastatic prostate cancer was $55,949 per person-year (95% confidence interval [CI], $54,074-$57,825 per person-year) in the commercial population and $43,682 per person-year (95% CI, $42,022-$45,342 per person-year) in the population covered by Medicare supplement plans, both in 2019 US dollars. CONCLUSIONS: The cost burden attributable to metastatic prostate cancer exceeds $55,000 per person-year among men with employer-sponsored health insurance and $43,000 among those covered by employer-sponsored Medicare supplement plans. These estimates can improve the precision of value assessments of clinical and policy approaches to the prevention, screening, and treatment of prostate cancer in the United States.

Complex Billing for Nonemergency Outpatient Imaging: An Obstacle to the Success of Health Care Price Transparency Initiatives.

PURPOSE: Recent price transparency initiatives have considerable limitations, notably due to the complexity of health care products. A single care encounter often consists of several services that may be performed by numerous clinicians and health care facilities that bill independently. The objective of this study was to describe the complexity in billing for nonemergency, noninvasive outpatient imaging and its variation across care delivery settings and imaging modalities. METHODS: Using billing records from the 2019 IBM MarketScan Commercial Database, the authors examined the number of billing entities involved in outpatient imaging encounters and the sets of relevant items and services for which patients were billed. RESULTS: In total, 5,210,129 imaging encounters were analyzed. Patients received bills from multiple billing entities for 70.9% of hospital-based encounters, 4.5% of office-based encounters, and 7.6% of encounters at imaging centers. Contrast agent was billed separately from the imaging procedures in 55.9%, 71.5%, and 55.3% of encounters for contrast imaging at hospitals, offices, and imaging centers, respectively. Billing for other ancillary items and services (facility fees, 3-D reconstruction, anesthesia and sedation) was relatively rare. CONCLUSIONS: Two key aspects of billing complexity may make obtaining complete and reliable price estimates before receiving outpatient imaging difficult for patients: the number of billing entities involved in care delivery and billing for fees and ancillary services beyond the primary imaging procedure. Given that price transparency initiatives are aimed primarily at helping patients anticipate the total cost of their care, policymakers, payers, and providers should take additional steps to provide patients with reliable information on the prices of entire care experiences.

Utilization of Chest and Abdominopelvic CT for Traumatic Injury From 2011 to 2018: Evaluation Using a National Commercial Database.

BACKGROUND. Increases in the use of CT to evaluate patients presenting with trauma have raised concern about inappropriate imaging. The evolving utilization of CT for trauma evaluation may be impacted by injury severity. OBJECTIVE. The purpose of this study was to explore patterns in utilization of chest and abdominopelvic CT among trauma-related emergency department (ED) visits across the United States. METHODS. This retrospective study was conducted with national commercial claims information extracted from the MarketScan Commercial Database. Trauma-related ED encounters were identified from the 2011-2018 MarketScan database files and classified by injury severity score (minor, intermediate, and major injuries) on the basis of International Classification of Diseases codes. ED encounters were also assessed for chest CT, abdominopelvic CT, and single-encounter chest and abdominopelvic CT examinations. Utilization per 1000 trauma-related ED encounters was determined. Multivariable Poisson regression models were used to determine incidence rate ratios (IRRs) as a measure of temporal changes in utilization. RESULTS. From 2011 to 2018, 8,369,092 trauma-related ED encounters were identified (5,685,295 for minor, 2,624,944 for intermediate, and 58,853 for major injuries). Utilization of chest CT per 1000 trauma-related ED encounters increased from 4.9 to 13.5 examinations (adjusted IRR, 1.15 per year; minor injuries, from 2.2 to 7.7 [adjusted IRR, 1.17]; intermediate injuries, from 8.5 to 21.5 [adjusted IRR, 1.16]; major injuries, from 117.8 to 200.1 [adjusted IRR, 1.08]). Utilization of abdominopelvic CT per 1000 trauma-related ED encounters increased from 7.5 to 16.4 (adjusted IRR, 1.12; minor injuries, 4.8 to 12.2 [adjusted IRR, 1.13]; intermediate injuries, 10.6 to 21.7 [adjusted IRR, 1.13]; major injuries, 134.8 to 192.6 [adjusted IRR, 1.07]). Utilization of single-encounter chest and abdominopelvic CT per 1000 trauma-related ED encounters increased from 3.4 to 8.9 [adjusted IRR, 1.16; minor injuries, 1.1 to 4.6 [adjusted IRR, 1.18]; intermediate injuries, 6.4 to 16.4 [adjusted IRR, 1.16]; major injuries, 99.6 to 179.9 [adjusted IRR, 1.08]). CONCLUSION. National utilization of chest and abdominopelvic CT for trauma-related ED encounters increased among commercially insured patients from 2011 to 2018, particularly for single-encounter chest and abdominopelvic CT examinations and for minor injuries. CLINICAL IMPACT. Given concerns about increased cost and detection of incidental findings, further investigation is warranted to explore the potential benefit of single-encounter chest and abdominopelvic CT examinations of patients with minor injuries and to develop strategies for optimizing appropriateness of imaging orders.

Spending on Medical Imaging by Age and Gender in the U.S. Population With Employer-Sponsored Insurance.

Demographic changes in the population are an under-studied driving force of imaging utilization and associated spending. This study used national databases to characterize variations in spending on medical imaging among individuals with primary or secondary employer-sponsored insurance. Spending on imaging generally increased with age until individuals were approximately 80-85 years old, and among those who were 14-70 years old, spending was higher among women than men. The findings provide insight into how demographic changes could impact future spending on medical imaging.

Clinical Characteristics of Most Frequent Use of Iodinated Contrast Media for CT.

Given the integral role of CT in patient care, the current global contrast media shortage creates profound and manifold patient care implications. We used a large insurance dataset to highlight examinations (abdominopelvic and chest CT), delivery settings (emergency department and outpatient hospital), and clinical indications (acute abdominopelvic and chest disease and cancer surveillance) for which contrast-enhanced CT is most commonly used. Such information may help inform emerging national guidelines and institutional policies.

Increasing Utilization of Emergency Department Neuroimaging From 2007 Through 2017.

BACKGROUND. The volume of emergency department (ED) visits and the number of neuroimaging examinations have increased since the start of the century. Little is known about this growth in the commercially insured and Medicare Advantage populations. OBJECTIVE. The purpose of our study was to evaluate changing ED utilization of neuroimaging from 2007 through 2017 in both commercially insured and Medicare Advantage enrollees. METHODS. Using patient-level claims from Optum's deidentified Clinformatics Data Mart database, which annually includes approximately 12-14 million commercial and Medicare Advantage health plan enrollees, annual ED utilization rates of head CT, head MRI, head CTA, neck CTA, head MRA, neck MRA, and carotid duplex ultrasound (US) were assessed from 2007 through 2017. To account for an aging sample population, utilization rates were adjusted using annual relative proportions of age groups and stratified by patient demographics, payer type, and provider state. RESULTS. Between 2007 and 2017, age-adjusted ED neuroimaging utilization rates per 1000 ED visits increased 72% overall (compound annual growth rate [CAGR], 5%). This overall increase corresponded to an increase of 69% for head CT (CAGR, 5%), 67% for head MRI (CAGR, 5%), 1100% for head CTA (CAGR, 25%), 1300% for neck CTA (CAGR, 27%), 36% for head MRA (CAGR, 3%), and 52% for neck MRA (CAGR, 4%) and to a decrease of 8% for carotid duplex US (CAGR, -1%). The utilization of head CT and CTA of the head and neck per 1000 ED visits increased in enrollees 65 years old or older by 48% (CAGR, 4%) and 1011% (CAGR, 24%). CONCLUSION. Neuroimaging utilization in the ED grew considerably between 2007 and 2017, with growth of head and neck CTA far outpacing the growth of other modalities. Unenhanced head CT remains by far the dominant ED neuroimaging examination. CLINICAL IMPACT. The rapid growth of head and neck CTA observed in the fee-for-service Medicare population is also observed in the commercially insured and Medicare Advantage populations. The appropriateness of this growth should be monitored as the indications for CTA expand.

Concordance of Disclosed Hospital Prices With Total Reimbursements for Hospital-Based Care Among Commercially Insured Patients in the US.

Importance: To improve health care price transparency and promote cost-conscious selection of health care organizations and practitioners, the Centers for Medicare & Medicaid Services (CMS) required that hospitals share payer-specific negotiated prices for selected shoppable health services by January 2021. While this regulation improves price transparency, it is unclear whether disclosed prices reflect total costs of care, since many hospital-based services are delivered and billed separately by independent practitioners or other health care entities. Objective: To assess the extent to which prices disclosed under the new hospital price transparency regulation are correlated with total costs of care among commercially insured individuals. Design, Setting, and Participants: This cross-sectional study used a large database of commercial claims from 2018 to analyze encounters at US hospitals for shoppable health care services for which price disclosure is required by CMS. Data were analyzed from November 2020 to February 2021. Exposures: Whether the service was billed by the hospital or another entity. Main Outcomes and Measures: Outcomes of interest were the percentage of encounters with at least 1 service billed by an entity other than the hospital providing care, number of billing entities, amounts billed by nonhospital entities, and the correlation between hospital and nonhospital reimbursements. Results: The study analyzed 4 545 809 encounters for shoppable care. Independent health care entities were involved in 7.6% (95% CI, 6.7% to 8.4%) to 42.4% (95% CI, 39.1% to 45.6%) of evaluation and management encounters, 15.9% (95% CI, 15.8% to 16%) to 22.2% (95% CI, 22% to 22.4%) of laboratory and pathology services, 64.9% (95% CI, 64.2% to 65.7%) to 87.2% (95% CI, 87.1% to 87.3%) of radiology services, and more than 80% of most medicine and surgery services. The median (IQR) reimbursement of independent practitioners ranged from $61 ($52-$102) to $412 ($331-$466) for evaluation and management, $5 ($4-$6) to $7 ($4-$12) for laboratory and pathology, $26 ($20-$32) to $210 ($170-$268) for radiology, and $47 ($21-$103) to $9545 ($7750-$18 277) for medicine and surgery. The reimbursement for services billed by the hospital was not strongly correlated with the reimbursement of independent clinicians, ranging from r = -0.11 (95% CI, -0.69 to 0.56) to r = 0.53 (95% CI, 0.13 to 0.78). Conclusions and Relevance: This cross-sectional study found that independent practitioners were frequently involved in the delivery of shoppable hospital-based care, and their reimbursement may have represented a substantial portion of total costs of care. These findings suggest that disclosed hospital reimbursement was usually not correlated with total cost of care, limiting the potential benefits of the hospital price transparency rule for improving consumer decision-making.

Disproportionate Use in Minor Trauma Is Driving Emergency Department Cervical Spine Imaging: An Injury Severity Score-Based Analysis.

PURPOSE: Clinical practice guidelines intended to reduce unnecessary cervical spine imaging have yielded mixed results. We aimed to assess evolving emergency department (ED) cervical spine imaging utilization in patients with trauma by injury severity. METHODS: Using 2009 to 2018 IBM MarketScan Commercial Databases, we identified ED trauma encounters, associated cervical spine imaging, and related diagnosis codes. We classified encounters by injury severity (minor, intermediate, major) using an International Classification of Disease code-derived Injury Severity Score algorithm and studied evolving imaging utilization using multivariable Poisson regression models. RESULTS: Of all 11,346,684 ED visits for trauma, 7,753,914 (68.3%), 3,524,250 (31.1%), and 68,520 (0.6%) involved minor, intermediate, and major injuries, respectively. Overall cervical spine imaging increased 5.7% annually (incidence rate ratio [IRR] 1.057, P < .001) with radiography decreasing 2.7% annually (IRR 0.973, P < .001) and CT increasing 10.5% annually (IRR 1.105, P < .001). Radiography utilization remained unchanged for minor injuries (IRR 0.994, P = .14) but decreased for intermediate (IRR 0.928 versus minor, P < .001) and major (IRR 0.931 versus minor, P < .001) injuries. Increases in CT utilization were greatest for minor injuries (IRR 1.109, P < .001) with smaller increases in intermediate (IRR 0.960 versus minor, P < .001) and major (IRR 0.987 versus minor, P = .022) injuries. CONCLUSIONS: Recent increases in cervical spine imaging in commercially insured patients with trauma seen in the ED have been largely related to increases in CT for patients with only minor injuries, in whom imaging utilization has been historically low. Further study is necessary to assess appropriateness, implications on costs and population radiation dose, and factors influencing ordering decision making.

U.S. Preventive Services Task Force Update and Computed Tomography for Colorectal Cancer Screening Among Privately Insured Population.

INTRODUCTION: The Affordable Care Act of 2010 mandated private health plans to fully cover the services recommended by the U.S. Preventive Services Task Force. In June 2016, the Task Force added computed tomography colonography to its list of recommended tests for colorectal cancer screening. This study evaluates the association among the updated recommendation, patient cost-sharing obligations, and the uptake of colorectal cancer screening through computed tomography colonography in the privately insured population. METHODS: Using individual claims from the 2010-2018 IBM MarketScan Commercial Database, monthly screening computed tomography colonography utilization rates per 100,000 privately insured beneficiaries aged 50-64 years and the monthly proportions of these services delivered by in-network providers for which patients had to bear a portion of the procedure costs were calculated, and an interrupted time series analysis was performed. The study was conducted between January and May 2020. RESULTS: Although the proportion of in-network procedures subject to patient cost sharing declined from 38.2% in 2010 to 10.2% in early 2016, the monthly utilization remained nearly constant. The announcement of the updated recommendation was associated with an immediate increase in the monthly screening computed tomography colonography utilization rate from 0.4 to 0.6 procedures per 100,000 individuals but with no change in the proportion of in-network procedures subject to patient cost sharing. CONCLUSIONS: In an environment of already largely eliminated patient cost sharing, the release of supportive evidence-based recommendations by a recognized credible body was associated with an immediate increase in computed tomography colonography use for colorectal cancer screening in the privately insured population.

Annual Out-Of-Pocket Spending Clusters Within Short Time Intervals: Implications For Health Care Affordability.

The distribution of out-of-pocket spending throughout the year is an important determinant of health care affordability that has received little attention. We used 2017 data from a large database of US commercial insurance claims to study the distribution of patient-level out-of-pocket spending throughout the year, highlighting potential hardship due to temporal clustering of spending. We found that although most commercially insured people had several health care encounters throughout the year, their out-of-pocket spending was mostly concentrated within short time intervals. Nearly one-third of people with above-the-median total annual health care spending (plan plus out-of-pocket spending) incurred half of their annual out-of-pocket spending in just one day. Policy makers working to improve the affordability of care should focus on innovative approaches to cost sharing that prevent dramatic financial shocks to household budgets due to medical bills.

Associations Over Time Between Paid Medical Malpractice Claims and Imaging Utilization in the United States.

PURPOSE: The aim of this study was to explore state-level relationships between the incidence and payout amounts for medical malpractice claims and Medicare imaging utilization and spending across the United States. METHODS: Using claims data from a 5% sample of Medicare beneficiaries for 2004 to 2016, annual state population-adjusted rates of imaging utilization and spending were calculated. Using National Practitioner Data Bank files, all paid physician malpractice claims were identified, and lagged state population-adjusted rolling averages of paid claim frequencies and payout amounts were calculated. Controlling for secular trends and state fixed effects with robust standard errors clustered at the state level to account for serial autocorrelation, associations between imaging utilization and lagged paid malpractice claims were assessed using multivariate regression models. Log-log model specification was used to obtain elasticity measures. RESULTS: Between 2004 and 2016, national Medicare diagnostic imaging utilization and spending declined by 31.4% and 47.2%, respectively (from 355,057 to 243,517 examinations and from $28,591,146 to $15,099,291 per 100,000 beneficiaries). Overall national paid malpractice claims and payout amounts declined by 46.4% and 39.6%, respectively (from 4.83 to 2.59 claims and from $1,803,565 to $1,089,112 per 100,000 population). After controlling for secular trends and state fixed effects, advanced imaging utilization was positively associated with the lagged number of per capita paid malpractice claims. Each 1% increase in average paid malpractice claims was associated with a subsequent 0.20% increase in advanced imaging utilization (P = .001). CONCLUSIONS: Positive associations between paid malpractice claims and advanced Medicare imaging utilization support the contention that US physicians use medical imaging as a defensive medicine strategy.

Use of Screening CT Colonography by Age and Race: A Study of Potential Access Barriers Related to Medicare Noncoverage Based on Data From the ACR's National CT Colonography Registry.

OBJECTIVE: The primary objectives of this investigation were to evaluate the use of screening CT colonography (CTC) examinations by age comparing individuals of Medicare-eligible age to younger cohorts and to determine if the association between use of CTC and Medicare-eligible age varies by race. Although the Affordable Care Act requires commercial insurance coverage of screening CTC, Medicare does not cover screening CTC. MATERIALS AND METHODS: Using the ACR's CTC registry, the distribution of procedures by age was evaluated using a negative binomial model with patient age (to capture overall trend), indicator of Medicare-eligible age (to capture immediate changes in trend at age 65), and their interaction (to capture gradual changes after age 65) as independent variables. The association between the number of screening CTCs and age was compared by racial identity. RESULTS: The CTC registry contained data on 12,648 screening examinations. Between ages 52 and 64, the number of screening examinations increased; each additional age year was associated with a 5.3% (P < .001) increase in the number of screenings. However, after age 65, the number of screening examinations decreased by -6.9% per additional year of age above 65 compared with the trend between ages 52 and 64 (P < .001). The modal age group for CTC use was 65 to 69 years in white and 55 to 59 in black individuals. CONCLUSION: After age 65, the number of screening CTC examinations decreased, likely due, at least in part, to lack of Medicare coverage. Medicare noncoverage may have a disproportionate impact on black patients and other racial minorities.

Differences in Female and Male-to-Female Transgender Facial Skin Micro-Vessel Density.

Importance: The risk of hematoma formation after rhytidectomy is gender associated and can lead to postoperative complications. The literature to help explain and elucidate the mechanism behind this gender-associated risk is poorly developed and requires further investigation. Objective: The objective of this study was to compare facial skin micro-vessel density of female and male-to-female (MTF) transgender patients undergoing rhytidectomy to better understand the mechanism of gender-correlated hematoma risk factors. The authors hypothesized that transgender patients would have higher micro-vessel density compared with female patients. Design, Setting, and Participants: This was a prospective histopathological analysis of pre- and post-auricular facial skin samples from patients undergoing primary rhytidectomy. Patient clinical data and skin samples were collected. Histopathological slides were prepared and stained with CD-31, a marker of vessel endothelium, followed by image analysis allowing for micro-vessel stained pixel counts and calculated pixel density comparisons at a single academic hospital. Female, MTF transgender, and male patients >18 years of age were studied. Exposure: Patients undergoing primary rhytidectomy between 2015 and 2018. Main Outcomes: Gender-associated pre- and post-auricular micro-vessel pixel density. Results: Forty-one patients contributed skin samples for analysis. Post-auricular micro-vessel pixel density was greater than pre-auricular density (mean difference post-pre 0.359 percentage points [p.p.], standard error [SE] = 0.135, p = 0.009). The mean post-auricular micro-vessel pixel density was 1.60% (SE = 0.13 p.p.), 2.16% (SE = 0.19 p.p.), and 2.77% (SE = 0.34 p.p.) for female, transgender, and male patients, respectively (p = 0.016). Pre-auricular micro-vessel pixel density showed no difference among females, males, and transgender patients (p = 0.30). Gender was a strong predictor of increased post-auricular micro-vessel pixel density on stepwise linear regression, but it did not predict pre-auricular micro-vessel density. Both preoperative hair removal and a history of hypertension were associated with increased pre-auricular micro-vessel density. Conclusions and Relevance: Facial skin micro-vessel density differs by gender, in addition to pre- and post-auricular locations in patients undergoing rhytidectomy.