Quantification of the environmental impact of radiotherapy and associated secondary human health effects: a multi-institutional retrospective analysis and simulation.

BACKGROUND: The health-care industry is a substantial contributor to global greenhouse gas emissions, yet the specific environmental impact of radiotherapy, a cornerstone of cancer treatment, remains under-explored. We aimed to quantify the emissions associated with the delivery of radiotherapy in the USA and propose a framework for reducing the environmental impact of oncology care. METHODS: In this multi-institutional retrospective analysis and simulation study, we conducted a lifecycle assessment of external beam radiotherapy (EBRT) for ten anatomical disease sites, adhering to the International Organization for Standardization's standards ISO 14040 and ISO 14044. We analysed retrospective data from Jan 1, 2017, to Oct 1, 2023, encompassing patient and staff travel, medical supplies, and equipment and building energy use associated with the use of EBRT at four academic institutions in the USA. The primary objective was to measure the environmental impacts across ten categories: greenhouse gases (expressed as kg of carbon dioxide equivalents [CO2e]), ozone depletion, smog formation, acidification, eutrophication, carcinogenic and non-carcinogenic potential, respiratory effects, fossil fuel depletion, and ecotoxicity. Human health effects secondary to these environmental impacts were also estimated as disability-adjusted life years. We also assessed the potential benefits of hypofractionated regimens for breast and genitourinary (ie, prostate and bladder) cancers on US greenhouse gas emissions using an analytic model based on the 2014 US National Cancer Database for fractionation patterns and patient commute distances. FINDINGS: We estimated that the mean greenhouse gas emissions associated with a standard 25-fraction EBRT course were 4310 kg CO2e (SD 2910), which corresponded to 0·0035 disability-adjusted life years per treatment course. Transit and building energy usage accounted for 25·73% (1110 kg CO2e) and 73·95% of (3190 kg CO2e) of total greenhouse gas emissions, respectively, whereas supplies contributed only 0·32% (14 kg CO2e). Across the other environmental impact categories, most of the environmental impact also stemmed from patient transit and energy use within facilities, with little environmental impact contributed by supplies used. Hypofractionated treatment simulations suggested a substantial reduction in greenhouse gas emissions-by up to 42% for breast and 77% for genitourinary cancer-and environmental impacts more broadly. INTERPRETATION: This comprehensive lifecycle assessment of EBRT delineates the environmental and secondary health impacts of radiotherapy, and underscores the urgent need for sustainable practices in oncology. The findings serve as a reference for future decarbonisation efforts in cancer care and show the potential environmental benefits of modifying treatment protocols (when clinical equipoise exists). They also highlight strategic opportunities to mitigate the ecological footprint in an era of escalating climate change and increasing cancer prevalence. FUNDING: Mount Zion Health Fund.

Vulvar Cancer, Version 3.2024, NCCN Clinical Practice Guidelines in Oncology.

Vulvar cancer is annually diagnosed in an estimated 6,470 individuals and the vast majority are histologically squamous cell carcinomas. Vulvar cancer accounts for 5% to 8% of gynecologic malignancies. Known risk factors for vulvar cancer include increasing age, infection with human papillomavirus, cigarette smoking, inflammatory conditions affecting the vulva, and immunodeficiency. Most vulvar neoplasias are diagnosed at early stages. Rarer histologies exist and include melanoma, extramammary Paget's disease, Bartholin gland adenocarcinoma, verrucous carcinoma, basal cell carcinoma, and sarcoma. This manuscript discusses recommendations outlined in the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for treatments, surveillance, systemic therapy options, and gynecologic survivorship.

Evaluation of cumulative dose distributions from external beam radiation therapy using CT-to-CBCT deformable image registration (DIR) for cervical cancer patients.

PURPOSE: To investigate dose differences between the planning CT (pCT) and dose calculated on pre-treatment verification CBCTs using DIR and dose summation for cervical cancer patients. METHODS: Cervical cancer patients treated at our institution with 45 Gy EBRT undergo a pCT and 5 CBCTs, once every five fractions of treatment. A free-form intensity-based DIR in MIM was performed between the pCT and each CBCT using the "Merged CBCT" feature to generate an extended FOV-CBCT (mCBCT). DIR-generated bladder and rectum contours were adjusted by a physician, and dice similarity coefficients (DSC) were calculated. After deformation, the investigated doses were (1) recalculated in Eclipse using original plan parameters (ecD), and (2) deformed from planning dose (pD) using the deformation matrix in MIM (mdD). Dose summation was performed to the first week's mCBCT. Dose distributions were compared for the bladder, rectum, and PTV in terms of percent dose difference, dose volume histograms (DVHs), and gamma analysis between the calculated doses. RESULTS: For the 20 patients, the mean DSC was 0.68 ± 0.17 for bladder and 0.79 ± 0.09 for rectum. Most patients were within 5% of pD for D2cc (19/20), Dmax (17/20), and Dmean (16/20). All patients demonstrated a percent difference > 5% for bladder V45 due to variations in bladder volume from the pCT. D90 showed fewer differences with 19/20 patients within 2% of pD. Gamma rates between pD and ecD averaged 94% for bladder and 94% for rectum, while pD and mdD exhibited slightly better performance for bladder (93%) and lower for rectum (85%). CONCLUSION: Using DIR with weekly CBCT images, the MIM deformed dose (mdD) was found to be in close agreement with the Eclipse calculated dose (ecD). The proposed workflow should be used on a case-by-case basis when the weekly CBCT shows marked difference in organs-at-risk from the planning CT.

Retrospective assessment of HDR brachytherapy dose calculation methods in locally advanced cervical cancer patients: AcurosBV vs. AAPM TG43 formalism.

PURPOSE: This retrospective analysis was completed to investigate the use of a model-based dose calculation algorithm (MBDCA) AcurosBV, for use in HDR BT treatments for locally advanced cervical cancer treated with tandem and ovoid applicators with interstitial needles. METHODS: A cohort of 32 patients receiving post-EBRT HDR brachytherapy boost with a prescription dose of 5.5 Gy × 5 fractions to the high-risk clinical target volume (CTVHR) were selected for this study. For standard TG43 dose calculation, applicators were manually digitized on the planning images, while for AcurosBV calculations, solid renderings of Titanium Fletcher Suite Delclos (FSD) applicators included in BrachyVision were matched to those used clinically and Ti needles were manually digitized. The dose was recalculated using Varian's AcurosBV 13.5 and dose-to-medium-in-medium (Dm,m) was reported. EQD2 values for targets and organs at risk were compared between dose calculation formalisms. D90% and D98% values were reported for the high and intermediate-risk CTVs, and D 2 c m 3 ${\mathrm{\ D}}_{{\mathrm{2\ c}}{{\mathrm{m}}}^{\mathrm{3}}}$ values were reported for OARs including bladder, rectum, sigmoid, bowel, and vagina. Due to variability within the patient cohort, the dosimetric impact of AcurosBV was investigated corresponding to planning image modality (CT vs. CBCT), presence of Ti needles, and contrast within vaginal balloons used to stabilize implants. AcurosBV showed lower dosimetric values for all plans compared to TG43. RESULTS: The average ± standard deviation of dosimetric reduction in D90% was 4.33 ± 0.09% for CTVHR and 4.12 ± 0.09% for CTVIR. The reduction to OARs D 2 c m 3 ${\mathrm{\ D}}_{{\mathrm{2\ c}}{{\mathrm{m}}}^{\mathrm{3}}}$ was: 4.99 ± 0.15% for bladder, 7.87 ± 0.16% for rectum, 5.79 ± 0.17% for sigmoid, 6.91 ± 0.14% for bowel, and 4.55 ± 0.14% for vagina. CONCLUSIONS: AcurosBV should be utilized for HDR BT GYN cases, treated with tandem and ovoid applicators, with high degrees of heterogeneity and calculated in tandem with TG43.

Uterine Neoplasms, Version 1.2023, NCCN Clinical Practice Guidelines in Oncology.

Adenocarcinoma of the endometrium (also known as endometrial cancer, or more broadly as uterine cancer or carcinoma of the uterine corpus) is the most common malignancy of the female genital tract in the United States. It is estimated that 65,950 new uterine cancer cases will have occurred in 2022, with 12,550 deaths resulting from the disease. Endometrial carcinoma includes pure endometrioid cancer and carcinomas with high-risk endometrial histology (including uterine serous carcinoma, clear cell carcinoma, carcinosarcoma [also known as malignant mixed Müllerian tumor], and undifferentiated/dedifferentiated carcinoma). Stromal or mesenchymal sarcomas are uncommon subtypes accounting for approximately 3% of all uterine cancers. This selection from the NCCN Guidelines for Uterine Neoplasms focuses on the diagnosis, staging, and management of pure endometrioid carcinoma. The complete version of the NCCN Guidelines for Uterine Neoplasms is available online at NCCN.org.

NCCN Guidelines® Insights: Cervical Cancer, Version 1.2024.

The NCCN Guidelines for Cervical Cancer provide recommendations for all aspects of management for cervical cancer, including the diagnostic workup, staging, pathology, and treatment. The guidelines also include details on histopathologic classification of cervical cancer regarding diagnostic features, molecular profiles, and clinical outcomes. The treatment landscape of advanced cervical cancer is evolving constantly. These NCCN Guidelines Insights provide a summary of recent updates regarding the systemic therapy recommendations for recurrent or metastatic disease.

A novel multi-modality imaging phantom for validating interstitial needle guidance for high dose rate gynecological brachytherapy.

PURPOSE: To design, manufacture, and validate a female pelvic phantom for multi-modality imaging (CT, MRI, US) to benchmark a commercial needle tracking system with application in HDR gynecological (GYN) interstitial procedures. MATERIALS AND METHODS: A GYN needle-tracking phantom was designed using CAD software to model an average uterus from a previous patient study, a vaginal canal from speculum dimensions, and a rectum to accommodate a transrectal ultrasound (TRUS) probe. A target volume (CTVHR ) was designed as an extension from the cervix-uterus complex. Negative space molds were created from modeled anatomy and 3D printed. Silicone was used to cast the anatomy molds. A 3D printed box was constructed to house the manufactured anatomy for structural integrity and to accommodate the insertion of a speculum, tandem, needles, and TRUS probe. The phantom was CT-imaged to identify potential imperfections that might impact US visualization. Free-hand TRUS was used to guide interstitial needles into the phantom. The commercial tracking system was used to generate a 3D US volume. After insertion, the phantom was imaged with CT and MR and the uterus and CTVHR dimensions were verified against the CAD model. RESULTS/CONCLUSIONS: The manufactured phantom allows for accurate visualization with multiple imaging modalities and is conducive to applicator and needle insertion. The phantom dimensions from the CAD model were verified with those from each imaging modality. The phantom is low cost and can be reproducibly manufactured with the 3D printing and molding processes. Our initial experiments demonstrate the ability to integrate the phantom with a commercial tracking system for future needle tracking validation studies.

Catastrophic health expenditures, insurance churn, and nonemployment among gynecologic cancer patients in the United States.

BACKGROUND: In recent years, there has been growing recognition of the financial burden of severe illness, including associations with higher rates of nonemployment, uninsurance, and catastrophic out-of-pocket health spending. Patients with gynecologic cancer often require expensive and prolonged treatments, potentially disrupting employment and insurance coverage access, and putting patients and their families at risk for catastrophic health expenditures. OBJECTIVE: This study aimed to describe the prevalence of insurance churn, nonemployment, and catastrophic health expenditures among nonelderly patients with gynecologic cancer in the United States, to compare within subgroups and to other populations and assess for changes associated with the Affordable Care Act. STUDY DESIGN: We identified respondents aged 18 to 64 years from the Medical Expenditure Panel Survey, 2006 to 2017, who reported care related to gynecologic cancer in a given year, and a propensity-matched cohort of patients without cancer and patients with cancers of other sites, as comparison groups. We applied survey weights to extrapolate to the US population, and we described patterns of insurance churn (any uninsurance or insurance loss or change), catastrophic health expenditures (>10% annual family income), and nonemployment. Characteristics and outcomes between groups were compared with the adjusted Wald test. RESULTS: We identified 683 respondents reporting care related to a gynecologic cancer diagnosis from 2006 to 2017, representing an estimated annual population of 532,400 patients (95% confidence interval, 462,000-502,700). More than 64% of patients reported at least 1 of 3 primary negative outcomes of any uninsurance, part-year nonemployment, and catastrophic health expenditures, with 22.4% reporting at least 2 of 3 outcomes. Catastrophic health spending was uncommon without nonemployment or uninsurance reported during that year (1.2% of the population). Compared with patients with other cancers, patients with gynecologic cancer were younger and more likely with low education and low family income (≤250% federal poverty level). They reported higher annual risks of insurance loss (8.8% vs 4.8%; P=.03), any uninsurance (22.6% vs 14.0%; P=.002), and part-year nonemployment (55.3% vs 44.6%; P=.005) but similar risks of catastrophic spending (12.6% vs 12.2%; P=.84). Patients with gynecologic cancer from low-income families faced a higher risk of catastrophic expenditures than those of higher icomes (24.4% vs 2.9%; P<.001). Among the patients from low-income families, Medicaid coverage was associated with a lower risk of catastrophic spending than private insurance. After the Affordable Care Act implementation, we observed reductions in the risk of uninsurance, but there was no significant change in the risk of catastrophic spending among patients with gynecologic cancer. CONCLUSION: Patients with gynecologic cancer faced high risks of uninsurance, nonemployment, and catastrophic health expenditures, particularly among patients from low-income families. Catastrophic spending was uncommon in the absence of either nonemployment or uninsurance in a given year.

Disparities in place of death for patients with primary brain tumors and brain metastases in the USA.

PURPOSE: Patients with primary or metastatic brain tumors often require intensive end-of-life care, for which place of death may serve as a quality metric. Death at home or hospice is considered a more "ideal" location. Comprehensive information on place of death of people with brain tumors is lacking. METHODS: Using CDC Wonder Database data, those who died in the USA from a solid cancer from 2003 to 2016 were included and place of death for those with primary brain, brain metastases, and solid non-brain tumors were compared. Multivariate logistic regression tested for disparities in place of death. RESULTS: By 2016, 51.1% of patients with primary brain tumors and 45.2% with brain metastases died at home. 15.9% of patients with primary brain tumors and 23.6% with brain metastases died in the hospital. Black patients were least likely to die at home or hospice. For patients with primary brain tumors, being married (OR = 2.25 (95%CI 2.16-2.34), p < 0.01) and having an advanced degree (OR = 1.204 (95%CI 1.15-1.26), p < 0.01) increased odds of home/hospice death; older age (OR = 0.50 (95%CI 0.46-0.54), p < 0.01) decreased odds for home/hospice death. For patients with brain metastases, being married (OR = 2.19 (95%CI 2.11-2.26), p < 0.01) increased odds of home/hospice death and male sex (OR = 0.87 (095%CI .85-0.89), p < 0.01) and older age (OR = 0.59 (95%CI 0.47-0.75), p < 0.01) decreased odds of home/hospice death. CONCLUSION: Disparities exist in place of death in the brain tumor population. Focused interventions are indicated to increase the utilization of hospice in those with metastatic cancer, under-represented minority groups, and the elderly population.

Role of stereotactic body radiotherapy in gynecologic radiation oncology.

Stereotactic body radiotherapy (SBRT, also referred to as stereotactic ablative radiotherapy (SABR)) has been used in the treatment of primary and metastatic solid tumors, and increasingly so in gynecologic oncology. This review article aims to summarize the current literature describing the utility of SBRT in the primary, recurrent, and limited metastatic settings for gynecologic malignancies. The use of SBRT in both retrospective and prospective reports has been associated with adequate control of the treated site, particularly in the setting of oligometastatic disease. It is not, however, recommended as an alternative to brachytherapy for intact disease unless all efforts to use brachytherapy are exhausted. While phase I and II trials have established the relative safety and potential toxicities of SBRT, there remains a dearth of phase III randomized evidence, including the use of immunotherapy, in order to better establish the role of this technique as a method of improving more global outcomes for our patients with gynecologic cancers.

NCCN Guidelines® Insights: Uterine Neoplasms, Version 3.2021.

The NCCN Guidelines for Uterine Neoplasms provide recommendations for diagnostic workup, clinical staging, and treatment options for patients with endometrial cancer or uterine sarcoma. These NCCN Guidelines Insights focus on the recent addition of molecular profiling information to aid in accurate diagnosis, classification, and treatment of uterine sarcomas.

HIV, cancer, and coping: The cumulative burden of a cancer diagnosis among people living with HIV.

OBJECTIVES: People living with HIV (PLWH) have increased risk for cancer and worse cancer-specific survival. We explored the emotional burden of cancer and HIV as a potential driver of cancer mortality. RESEARCH APPROACH: Semi-structured qualitative interviews with PLWH and cancer. PARTICIPANTS: 27 PLWH who had either completed cancer treatment, were currently undergoing treatment, or experienced challenges in completing treatment. METHODOLOGICAL APPROACH: An inductive qualitative approach using the constant comparative method. FINDINGS: Participants drew strong parallels between being diagnosed with HIV and cancer. Many described HIV-related stigma that hindered social support. Cancer treatment side effects were a major challenge, impacting treatment adherence for both cancer and HIV. IMPLICATIONS FOR PSYCHOSOCIAL PROVIDERS: There is a need for convenient, affordable, and visible services to support PLHIV as they navigate cancer care. Services should be tailored to the unique needs of this population by addressing HIV-related stigma, building social support, and fostering resilience.

The impact of the Patient Protection and Affordable Care Act on insurance coverage and cancer-directed treatment in HIV-infected patients with cancer in the United States.

BACKGROUND: To the authors' knowledge, little is known regarding the impact of the Patient Protection and Affordable Care Act (ACA) on people living with HIV and cancer (PLWHC), who have lower cancer treatment rates and worse cancer outcomes. To investigate this research gap, the authors examined the effects of the ACA on insurance coverage and receipt of cancer treatment among PLWHC in the United States. METHODS: HIV-infected individuals aged 18 to 64 years old with cancer diagnosed between 2011 and 2015 were identified in the National Cancer Data Base. Health insurance coverage and cancer treatment receipt were compared before and after implementation of the ACA in non-Medicaid expansion and Medicaid expansion states using difference-in-differences analysis. RESULTS: Of the 4794 PLWHC analyzed, approximately 49% resided in nonexpansion states and were more often uninsured (16.7% vs 4.2%), nonwhite (65.2% vs 60.2%), and of low income (36.3% vs 26.9%) compared with those in Medicaid expansion states. After 2014, the percentage of uninsured individuals decreased in expansion states (from 4.9% to 3%; P = .01) and nonexpansion states (from 17.6% to 14.6%; P = .06), possibly due to increased Medicaid coverage in expansion states (from 36.9% to 39.2%) and increased private insurance coverage in nonexpansion states (from 29.5% to 34.7%). There was no significant difference in cancer treatment receipt noted between Medicaid expansion and nonexpansion states. However, the percentage of PLWHC treated at academic facilities increased significantly only in expansion states (from 40.2% to 46.7% [P < .0001]; difference-in-differences analysis: 7.2 percentage points [P = .02]). CONCLUSIONS: The implementation of the ACA was associated with improved insurance coverage among PLWHC. Lack of insurance still is common in non-Medicaid expansion states. Patients with minority or low socioeconomic status more often resided in nonexpansion states, thereby highlighting the need for further insurance expansion.

Off-study utilization of experimental therapies: Analysis of GOG249-eligible cohorts using real world data.

OBJECTIVE: Adjuvant management of women with high-intermediate- and high-risk early-stage endometrial cancer remains controversial. Recently published results of GOG 249 revealed that vaginal brachytherapy plus chemotherapy (VBT + CT) was not superior to whole pelvic radiation therapy (WPRT) and was associated with more toxicities and higher nodal recurrences. This study examined off-study utilization of VBT + CT among women who met criteria for GOG 249 in the period prior to study publication. METHODS: Women diagnosed with FIGO IA-IIB endometrioid, serous, or clear cell uterine cancer between 2004-2015 and treated with hysterectomy and radiotherapy (RT) were identified in the National Cancer Database. Cochrane-Armitrage trend test was used to assess trends over time. Univariate and multivariate Cox analyses were performed to calculate odds ratio (OR) of VBT + CT receipt and hazard ratio (HR) of OS. Propensity-score matched analysis was conducted to account for baseline differences. RESULTS: 9956 women met inclusion criteria. 7548 women (75.8%) received WPRT while 2408 (24.2%) received VBT + CT in the study period. From 2004-2015, there was a significant increase in VBT + CT use (p < 0.001) with the largest overall increase occurring in 2009 to 22%. Factors significantly associated with VBT + CT receipt included higher socioeconomic status (p < 0.001), higher grade endometrioid cancer (p < 0.001), and aggressive histology (p < 0.001). After propensity-score matching, VBT + CT was associated with improved OS (HR 0.74, 95% CI 0.58-0.93); however, when stratified by FIGO stage, VBT + CT was only associated with improved OS for FIGO stage 1B (HR 0.62, 95% CI 0.44-0.87). CONCLUSIONS: There was significant use of experimental arm off-study treatment in the United States prior to report of GOG 249 results. Providers should be cautious when offering off-study treatment utilizing an experimental regimen given uncertainty about efficacy and toxicity.

Association of human papilloma virus status and response to radiotherapy in vulvar squamous cell carcinoma.

INTRODUCTION: Vulvar squamous cell carcinoma develops through two separate pathways, associated with the presence or absence of high-risk human papilloma virus (HPV). The objective of this study was to evaluate treatment response and clinical outcomes in women with HPV-associated versus HPV-independent vulvar squamous cell carcinoma treated with primary radiation therapy, in order to determine the ability to use HPV status as a predictor of response to radiation therapy. METHODS: This was a retrospective cohort study combining data from British Columbia Cancer, Canada and Duke University, USA. Patients were included who had been treated with radiation therapy but excluded if they had received major surgical interventions. Immunohistochemistry for p16 (as a surrogate for high-risk HPV infection) and p53 was performed. We analyzed the univariable association between p16 status and clinico-pathological features and performed univariable survival analysis for p16. RESULTS: Forty-eight patients with vulvar squamous cell carcinoma treated with primary radiation therapy were identified: 26 p16 positive/HPV-associated patients and 22 p16 negative/HPV-independent patients. p16 positive vulvar squamous cell carcinoma demonstrated a significantly improved overall survival (HR 0.39, p=0.03) and progression-free survival (HR 0.35, p=0.02). In women treated with definitive radiation therapy, p16 positivity was associated with improved overall survival (HR 0.29, p<0.01) and progression-free survival (HR 0.21, p<0.01). Among patients who received sensitizing chemotherapy, a significant association was observed with p16 positive tumors and overall survival (HR 0.25, p=0.03) and progression-free survival (HR 0.09, p<0.01). CONCLUSION: This study suggests that HPV status in vulvar squamous cell carcinoma has both prognostic and predictive implications, with increased radiosensitivity demonstrated in HPV-associated vulvar squamous cell carcinoma. Implications may include radiation dose de-escalation for HPV-associated vulvar squamous cell carcinoma and increased surgical aggressiveness for HPV-independent vulvar squamous cell carcinoma.

Place of death by region and urbanization among gynecologic cancer patients: 2006-2016.

OBJECTIVE: To evaluate associations between US region of residence and urbanization and the place of death among women with gynecologic malignancies in the United States. METHODS: A retrospective cross-sectional study was performed using publicly available death certificate data from the National Center for Health Statistics. All gynecologic cancer deaths were included from 2006 to 2016. Comparisons among categories were performed with a two-tailed chi-square test, with p-values <0.05 considered significant. RESULTS: From 2006 to 2016, 328,026 women died from gynecologic malignancies in the US. Of these deaths, 40.1% (n = 134,333) occurred in the patient's home, 24.9%(n = 81,823) in the hospital, and 11.3% (37,188) in an inpatient hospice facility. Place of death varied by geographic region. The Northeast had the largest percentage of gynecologic cancer patients (31.3%) die as a hospital inpatient. The West had the highest percentage of deaths (49.3%) at home. Deaths in a hospice facility were the highest (14.1%) in the South. Place of death varied by urbanization; patients residing in large central metro or rural counties were the most likely to die during hospital admission (28.7% and 27.1%, respectively). Patients living in medium-sized metro areas were the least likely to die in hospitals (21.8%) and most likely to die in a hospice facility (14.3%). All comparisons were significant by study definition. CONCLUSION: The place of death for patients with gynecologic malignancies varies by US region and urbanization. These disparities are multifactorial in nature, likely influenced by both sociodemographic factors and regional resource availability. In this study, however, rural and central metro areas are identified as regions that may benefit from further hospice development and advocacy.

Gender variation in Medicare utilization and payments in gynecologic oncology.

OBJECTIVES: The Medicare Provider Utilization and Payment Data: Physician and Other Supplier Public Use File (POSPUF) and Medicare Physician and Other Supplier National Provider Identifier (POS NPI) Aggregate Report are publicly available files from the Center for Medicare and Medicaid Services that include payments to providers who care for fee-for-service Medicare recipients. The aim of this study was to analyze variability in gynecologic oncologists' Medicare reimbursements, with attention to differences in provider gender and time in practice. METHODS: The 2015 POSPUF and POS NPI were analyzed with respect to gynecologic oncologists. We searched external publicly available data sources to confirm subspecialty and to determine each provider's number of years in practice. Evaluation and management (E&M) and procedure/surgery codes were analyzed; drug delivery codes were excluded due to variability in billing by facility/hospital. RESULTS: The POS NPI file included 733 gynecologic oncologist providers receiving $55,626,739 in total payments. Female providers comprised 39% of gynecologic oncologists and received 31% of reimbursements (30% of E&M reimbursements and 24% of surgical reimbursements). During the first ten years in practice, female providers comprised 58% of providers and accounted for 52% of reimbursed services, compared to 38% of providers/26% of reimbursed services (11-20 years), and 18% of providers/19% of reimbursed services (>20 years). CONCLUSION: Male gynecologic oncologists perform more Medicare services than their female counterparts. There is a comparable number of services performed between genders among both the most senior and the most junior providers, with a gender gap in services and reimbursements among mid-career providers.

Place of death for patients with cancer in the United States, 1999 through 2015: Racial, age, and geographic disparities.

BACKGROUND: Place of death is an essential component of high quality cancer care and comprehensive national trends and disparities in place of death are unknown. METHODS: Deidentified death certificate data were obtained via the National Center for Health Statistics. All cancer deaths from 1999 through 2015 were included. Multivariate logistic regression was used to test for disparities in place of death associated with sociodemographic variables. RESULTS: From 1999 through 2015, a total of 9,646,498 cancer deaths occurred. Hospital deaths decreased (from 36.6% to 24.6%), whereas the rate of home deaths (38.4% to 42.6%) and hospice facility deaths (0% to 14.0%) both increased (all P<.001). On multivariate logistic regression, all assessed variables were found to be associated with place of death. Specifically, younger age (age birth-14 years: odds ratio [OR], 2.39; age 25-44 years: OR, 1.62), black (OR, 1.83) or Asian (OR, 1.74) race, and Hispanic ethnicity (OR, 1.41) were associated with hospital death. Being married (OR, 2.17) or widowed (OR, 1.56) was associated with home death whereas increasing educational level (OR, 1.15-1.19) was associated with hospice death (all P<.001). Despite overall improvements, certain disparities were found to increase. For young patients, the likelihood of a hospital death increased from 2.3 times to 3.4 times that of older patients (50.9% for those aged 15-24 years vs 15.0% for those aged ≥85 years in 2015). For black patients, the likelihood of a hospital death increased from 1.29 times to 1.42 times that of white patients (32.8% for black patients vs 23.1% for white patients in 2015). CONCLUSIONS: Hospital cancer deaths decreased by approximately one-third with commensurate increases in home and hospice facility deaths. Many sociodemographic groups experience significant disparities with regard to place of death and may benefit from targeted efforts to improve goal-concordant care.