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1.
Lancet Oncol ; 25(5): e217-e224, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38697167

RESUMEN

Caribbean small island developing states are becoming increasingly vulnerable to compounding disasters, prominently featuring climate-related hazards and pandemic diseases, which exacerbate existing barriers to cancer control in the region. We describe the complexities of cancer prevention and control efforts throughout the Caribbean small island developing states, including the unique challenges of people diagnosed with cancer in the region. We highlight potential solutions and strategies that concurrently address disaster adaptation and cancer control. Because Caribbean small island developing states are affected first and worst by the hazards of compounding disasters, the innovative solutions developed in the region are relevant for climate mitigation, disaster adaptation, and cancer control efforts globally. In the age of complex and cascading disaster scenarios, developing strategies to mitigate their effect on the cancer control continuum, and protecting the health and safety of people diagnosed with cancer from extreme events become increasingly urgent. The equitable development of such strategies relies on collaborative efforts among professionals whose diverse expertise from complementary fields infuses the local community perspective while focusing on implementing solutions.


Asunto(s)
Neoplasias , Humanos , Neoplasias/epidemiología , Neoplasias/diagnóstico , Neoplasias/prevención & control , Región del Caribe/epidemiología , Desastres , Planificación en Desastres/organización & administración
2.
Int J Cancer ; 154(5): 786-792, 2024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-37971377

RESUMEN

The coronavirus disease 2019 (COVID-19) pandemic led to health care disruptions and declines in cancer diagnoses in the United States. However, the impact of the pandemic on cancer incidence rates by stage at diagnosis and race and ethnicity is unknown. This cross-sectional study calculated delay- and age-adjusted incidence rates, stratified by stage at diagnosis and race and ethnicity, and rate ratios (RRs) comparing changes in year-over-year incidence rates (eg, 2020 vs 2019) from 2016 to 2020 for 22 cancer types based on data obtained from the Surveillance, Epidemiology, and End Results 22-registry database. From 2019 to 2020, the incidence of local-stage disease statistically significantly declined for 19 of the 22 cancer types, ranging from 4% (RR = 0.96; 95%CI, 0.93-0.98) for urinary bladder cancer to 18% for colorectal (RR = 0.82; 95%CI, 0.81-0.84) and laryngeal (RR = 0.82; 95%CI, 0.78-0.88) cancers, deviating from pre-COVID stable year-over-year changes. Incidence during the corresponding period also declined for 16 cancer types for regional-stage and six cancer types for distant-stage disease. By race and ethnicity, the decline in local-stage incidence for screening-detectable cancers was generally greater in historically marginalized populations. The decline in cancer incidence rates during the first year of the COVID-19 pandemic occurred mainly for local- and regional-stage diseases across racial and ethnic groups. Whether these declines will lead to increases in advanced-stage disease and mortality rates remain to be investigated with additional data years. Nevertheless, the findings reinforce the importance of strengthening the return to preventive care campaigns and outreach for detecting cancers at early and more treatable stages.


Asunto(s)
COVID-19 , Neoplasias , Humanos , Estados Unidos/epidemiología , Incidencia , Pandemias , COVID-19/epidemiología , Estudios Transversales , Neoplasias/epidemiología
3.
Semin Speech Lang ; 45(1): 46-55, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38232746

RESUMEN

Persons with communication disabilities including persons with post-stroke aphasia (PWAs) possess a vulnerability to climate change as a result of their communication impairments. The disproportionate effects of climate change are likely to exacerbate preexisting inequities in social determinants of health. Communication disability intersecting with other characteristics subject to discrimination (e.g., race, age, sex, income) may lead to inequities in climate-related adaptive capacity. This article echoes earlier concerns related to climate change and further educates healthcare professionals about the impact of climate change on the global human population, with particular consideration of PWAs. The aims of this article are the following: (1) to broaden the understanding of aphasiologists and clinicians caring for PWAs about climate change and the contributions of human activity (anthropogenic) to this crisis; (2) to describe climate change and its impact on health; (3) to detail the intersectionality of climate and health; (4) to explore climate change and its potential effects on PWAs; and (5) to offer hope through emissions reduction, adaptation, resilience, and immediate change.


Asunto(s)
Afasia , Resiliencia Psicológica , Humanos , Cambio Climático , Marco Interseccional , Afasia/etiología
4.
Ann Surg Oncol ; 30(4): 2087-2093, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36539579

RESUMEN

PURPOSE: This study evaluated the reliability of cancer cases reported to the National Cancer Database (NCDB) during 2020, the first year of the COVID-19 pandemic. METHODS: Total number of cancer cases reported to the NCDB between January 2018 and December 2020 were calculated for all cancers and 21 selected cancer sites. The additive outlier method was used to identify structural breaks in trends compared with previous years. The difference between expected (estimated using the vector autoregressive method) and observed number of cases diagnosed in 2020 was estimated using generalized estimating equation under assumptions of the Poisson distribution for count data. Interrupted time series analysis was used to compare changes in the number of records processed by registrars each month of 2020. All models accounted for seasonality, regional variation, and random error. RESULTS: There was a statistically significant decrease (structural break) in the number of cases diagnosed in April 2020, with no recovery in number of cases during subsequent months, leading to a 12.4% deficit in the number of cases diagnosed during the first year of the pandemic. While the number of cancer records initiated by cancer registrars also decreased, the number of records marked completed increased during the first months of the pandemic. CONCLUSION: There was a significant deficit in the number of cancer diagnoses in 2020 that was not due to cancer registrars' inability to extract data during the pandemic. Future studies can use NCDB data to evaluate the impact of the pandemic on cancer care and outcomes.


Asunto(s)
COVID-19 , Neoplasias , Humanos , COVID-19/epidemiología , Predicción , Neoplasias/epidemiología , Pandemias , Reproducibilidad de los Resultados
5.
J Gen Intern Med ; 38(3): 592-599, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-35882706

RESUMEN

BACKGROUND: There are approximately 25.6 million individuals with limited English proficiency (LEP) in the USA, and this number is increasing. OBJECTIVE: Investigate associations between LEP and access to care in adults. DESIGN: Cross-sectional nationally representative survey. PARTICIPANTS: Adults with (n = 18,908) and without (n = 98,060) LEP aged ≥ 18 years identified from the 2014-2018 Medical Expenditure Panel Survey MAIN MEASURES: Associations between LEP and access to healthcare and preventive services were evaluated with multivariable logistic regression models, stratified by age group (18-64 and ≥ 65 years). The official government definition of LEP (answers "not at all/not well/well" to the question "How well do you speak English?") was used. Access to care included having a usual source of care (and if so, distance from usual source of care, difficulty contacting usual source of care, and provision of extended hours), visiting a medical provider in the past 12 months, having to forego or delay care, and having trouble paying for medical bills. Preventive services included blood pressure and cholesterol check, flu vaccination, and cancer screening. KEY RESULTS: Adults aged 18-64 years with LEP were significantly more likely to lack a usual source of care (adjusted odds ratios [aOR] = 2.48; 95% confidence interval [CI] = 2.27-2.70), not have visited a medical provider (aOR = 2.02; CI = 1.89-2.16), and to be overdue for receipt of preventive services, including blood pressure check (aOR = 2.00; CI = 1.79-2.23), cholesterol check (aOR = 1.22; CI = 1.03-1.44), and colorectal cancer screening (aOR = 1.58; CI = 1.37-1.83) than adults without LEP. Results were similar among adults aged ≥ 65 years. CONCLUSIONS: Adults with LEP had consistently worse access to care than adults without LEP. System-level interventions, such as expanding access to health insurance coverage, providing language services, improving provider training in cultural competence, and increasing diversity in the medical workforce may minimize barriers and improve equity in access to care.


Asunto(s)
Dominio Limitado del Inglés , Adulto , Humanos , Estudios Transversales , Lenguaje , Servicios Preventivos de Salud , Accesibilidad a los Servicios de Salud , Barreras de Comunicación
6.
Cancer ; 128(20): 3727-3733, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35989581

RESUMEN

BACKGROUND: Cancer survivors represent a population with high health care needs. If and how cancer survivors were affected by the first year of the coronavirus disease 2019 (COVID-19) pandemic are largely unknown. METHODS: Using data from the nationwide, population-based Behavioral Risk Factor Surveillance System (2017-2020), the authors investigated changes in health-related measures during the COVID-19 pandemic among cancer survivors and compared them with changes among adults without a cancer history in the United States. Sociodemographic and health-related measures such as insurance coverage, employment status, health behaviors, and health status were self-reported. Adjusted prevalence ratios of health-related measures in 2020 versus 2017-2019 were calculated with multivariable logistic regressions and stratified by age group (18-64 vs. ≥65 years). RESULTS: Among adults aged 18-64 years, the uninsured rate did not change significantly in 2020 despite increases in unemployment. The prevalence of unhealthy behaviors, such as insufficient sleep and smoking, decreased in 2020, and self-rated health improved, regardless of cancer history. Notably, declines in smoking were larger among cancer survivors than nonelderly adults without a cancer history. Few changes were observed for adults aged ≥65 years. CONCLUSIONS: Further research is needed to confirm the observed positive health behavior and health changes and to investigate the role of potential mechanisms, such as the national and regional policy responses to the pandemic regarding insurance coverage, unemployment benefits, and financial assistance. As polices related to the public health emergency expire, ongoing monitoring of longer term effects of the pandemic on cancer survivorship is warranted.


Asunto(s)
COVID-19 , Supervivientes de Cáncer , Neoplasias , Adulto , COVID-19/epidemiología , Humanos , Cobertura del Seguro , Seguro de Salud , Neoplasias/epidemiología , Pandemias , Autoinforme , Estados Unidos/epidemiología
8.
Odontology ; 109(4): 956-964, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34023952

RESUMEN

Oral diseases such as periodontitis can have a more negative influence on the quality of life of obese than in normal-weight patients. The objective of the present study was to assess the impact of one-stage full-mouth disinfection (OSFMD) therapy on the oral health-related quality of life (OHRQL) of obese and non-obese individuals with periodontitis. Fifty-five obese and thirty-nine non-obese patients were evaluated. The questionnaires oral impacts on daily performance (OIDP) and oral health and quality of life (OHQoL) were given to all patients at baseline and 6 months after periodontal treatment by the OSFMD protocol. For statistical analysis, Chi-square, the two-factor repeated-measures ANOVA, and correlation tests were used. At baseline, mean global OHQoL and OIDP scores were similar for both groups (p > 0.05). At 6 months, OSFMD resulted in OHQoL and OIDP global scores improvements in both groups (p < 0.05), with no significant difference between groups. The most impaired activity at baseline was eating and cleaning teeth for both groups. Periodontal parameters were associated with worse values in the OHQoL and OIDP questionnaires only in obese patients. In conclusion, OSFMD yielded similar improvements in overall OHRQL in both obese and non-obese individuals. Periodontal parameters were associated with a worse quality of life in obese patients. Periodontal treatment can be an important component to improve the OHRQL of obese individuals, and clinicians should expect similar results as those obtained with non-obese patients.


Asunto(s)
Periodontitis , Calidad de Vida , Humanos , Obesidad/complicaciones , Salud Bucal , Periodontitis/terapia , Encuestas y Cuestionarios
10.
MMWR Morb Mortal Wkly Rep ; 67(13): 387-389, 2018 Apr 06.
Artículo en Inglés | MEDLINE | ID: mdl-29621206

RESUMEN

Phosphine is a highly toxic gas that forms when aluminum phosphide, a restricted-use pesticide* typically used in agricultural settings, reacts with water. Acute exposure can lead to a wide range of respiratory, cardiovascular, and gastrointestinal symptoms, and can be fatal (1). On January 2, 2017, the Texas Department of State Health Services (DSHS) was notified by the Texas Panhandle Poison Center of an acute phosphine exposure incident in Amarillo, Texas. DSHS investigated potential occupational phosphine exposures among the 51 on-scene emergency responders; 40 (78.4%) did not use respiratory protection during response operations. Fifteen (37.5%) of these 40 responders received medical care for symptoms or as a precaution after the incident, and seven (17.5%) reported new or worsening symptoms consistent with phosphine exposure within 24 hours of the incident. Emergency response organizations should ensure that appropriate personal protective equipment (PPE) is used during all incidents when an unknown hazardous substance is suspected. Additional evaluation is needed to identify targeted interventions that increase emergency responder PPE use during this type of incident.


Asunto(s)
Socorristas , Sustancias Peligrosas/toxicidad , Exposición Profesional/estadística & datos numéricos , Fosfinas/toxicidad , Adulto , Socorristas/estadística & datos numéricos , Humanos , Capacitación en Servicio/estadística & datos numéricos , Persona de Mediana Edad , Enfermedades Profesionales/inducido químicamente , Exposición Profesional/efectos adversos , Dispositivos de Protección Respiratoria/estadística & datos numéricos , Texas , Adulto Joven
12.
Am J Epidemiol ; 182(3): 187-97, 2015 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-26085045

RESUMEN

Adiposity is associated with pancreatic cancer; however, the underlying mechanism(s) is uncertain. Leptin is an adipokine involved in metabolic regulation, and obese individuals have higher concentrations. We conducted a pooled, nested case-control study of cohort participants from the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial, the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study, and the Cancer Prevention Study II Nutrition Cohort to investigate whether prediagnostic serum leptin was associated with pancreatic cancer. A total of 731 pancreatic adenocarcinoma cases that occurred between 1986 and 2010 were included (maximum follow-up, 23 years). Incidence density-selected controls (n = 909) were matched to cases by cohort, age, sex, race, and blood draw date. Conditional logistic regression was used to calculate odds ratios and 95% confidence intervals. Sex-specific quintiles were based on the distribution of the controls. Overall, serum leptin was not associated with pancreatic cancer (quintile 5 vs. quintile 1: odds ratio = 1.13, 95% confidence interval: 0.75, 1.71; Ptrend = 0.38). There was a significant interaction by follow-up time (P = 0.003), such that elevated risk was apparent only during follow-up of more than 10 years after blood draw (quintile 5 vs. quintile 1: odds ratio = 2.55, 95% confidence interval: 1.23, 5.27; Ptrend = 0.004). Our results support an association between increasing leptin concentration and pancreatic cancer; however, long follow-up is necessary to observe the relationship. Subclinical disease may explain the lack of association during early follow-up.


Asunto(s)
Biomarcadores de Tumor/sangre , Leptina/sangre , Neoplasias Pancreáticas/sangre , Neoplasias Pancreáticas/epidemiología , Anciano , Estudios de Casos y Controles , Estudios de Cohortes , Detección Precoz del Cáncer , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Resistencia a la Insulina , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Neoplasias Pancreáticas/diagnóstico , Medición de Riesgo , Factores de Riesgo , Estados Unidos/epidemiología
15.
Cancer Causes Control ; 25(9): 1083-91, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24913781

RESUMEN

PURPOSE: Clinically evident chronic pancreatitis is a strong risk factor for pancreatic cancer. A small Japanese cohort study previously reported that pre-diagnostic serum transforming growth factor-ß1 (TGF-ß1) concentration, a potential marker of subclinical pancreatic inflammation, was associated with higher risk of pancreatic cancer. We further explored this association in a larger prospective study. METHODS: Serum TGF-ß1 concentrations were measured in pre-diagnostic samples from 729 pancreatic cancer cases and 907 matched controls from a cohort of Finnish male smokers (the Alpa-Tocopherol, Beta-Carotene (ATBC) Cancer Prevention Study) and two cohorts of US men and women, the Cancer Prevention Study-II and the Prostate Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial. Multivariable-adjusted odds ratios (ORs) were estimated using conditional logistic regression. RESULTS: Overall, serum TGF-ß1 concentration was not associated with a clear increase in pancreatic cancer risk (OR 1.36, 95 % confidence interval (CI) 0.98-1.88 for highest vs. lowest quintile, p trend = 0.20). However, this association differed significantly by follow-up time (p = 0.02). Serum TGF-ß1 concentration was not associated with risk during the first 10 years of follow-up, but was associated with higher risk during follow-up after 10 years (OR 2.13, 95 % CI 1.23-3.68 for highest vs. lowest quintile, p trend = 0.001). During follow-up after 10 years, serum TGF-ß1 was associated with higher risk only in the ATBC cohort, although most subjects were from ATBC during this time period and statistical evidence for heterogeneity across cohorts was limited (p = 0.14). CONCLUSIONS: These results suggest that high serum TGF-ß1 may be associated with increased risk of pancreatic cancer although a long follow-up period may be needed to observe this association.


Asunto(s)
Biomarcadores/sangre , Neoplasias Pancreáticas/sangre , Factor de Crecimiento Transformador beta1/sangre , Anciano , Estudios de Casos y Controles , Estudios de Cohortes , Femenino , Finlandia/epidemiología , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Neoplasias Pancreáticas/epidemiología , Neoplasias Pancreáticas/etiología , Estudios Prospectivos , Factores de Riesgo , Fumar , Estados Unidos/epidemiología
17.
J Natl Cancer Inst ; 116(1): 15-25, 2024 01 10.
Artículo en Inglés | MEDLINE | ID: mdl-37813679

RESUMEN

Despite advances in cancer control-prevention, screening, diagnosis, treatment, and survivorship-racial disparities in cancer incidence and survival persist and, in some cases, are widening in the United States. Since 2020, there's been growing recognition of the role of structural racism, including structurally racist policies and practices, as the main factor contributing to historical and contemporary disparities. Structurally racist policies and practices have been present since the genesis of the United States and are also at the root of environmental injustices, which result in disproportionately high exposure to environmental hazards among communities targeted for marginalization, increased cancer risk, disruptions in access to care, and worsening health outcomes. In addition to widening cancer disparities, environmental injustices enable the development of polluting infrastructure, which contribute to detrimental health outcomes in the entire population, and to climate change, the most pressing public health challenge of our time. In this commentary, we describe the connections between climate change and cancer through an Environmental Justice perspective (defined as the fair treatment and meaningful involvement of people of all racialized groups, nationalities, or income, in all aspects, including development, implementation, and enforcement, of policies and practices that affect the environment and public health), highlighting how the expertise developed in communities targeted for marginalization is crucial for addressing health disparities, tackling climate change, and advancing cancer control efforts for the entire population.


Asunto(s)
Cambio Climático , Neoplasias , Estados Unidos/epidemiología , Humanos , Justicia Social , Justicia Ambiental , Atención a la Salud , Neoplasias/epidemiología , Neoplasias/etiología , Neoplasias/prevención & control
18.
J Clin Oncol ; 42(12): 1368-1377, 2024 Apr 20.
Artículo en Inglés | MEDLINE | ID: mdl-37939323

RESUMEN

PURPOSE: Young individuals racialized as Black are more likely to die after a colorectal cancer (CRC) diagnosis than individuals racialized as White in the United States. This study examined racial disparities in receipt of timely and guideline-concordant care among individuals racialized as Black and White with early-onset CRC. METHODS: Individuals age 18-49 years racialized as non-Hispanic Black and White (self-identified) and newly diagnosed with CRC during 2004-2019 were selected from the National Cancer Database. Patients who received recommended care (staging, surgery, lymph node evaluation, chemotherapy, and radiotherapy) were considered to have received guideline-concordant care. Odds ratios (ORs) were adjusted for age and sex. The decomposition method was used to estimate the relative contribution of demographic characteristics (age and sex), comorbidities, health insurance, and facility type to the racial disparity in receipt of guideline-concordant care. The product-limit method was used to evaluate differences in time to treatment between patients racialized as Black and White. RESULTS: Of the 84,882 patients with colon cancer and 62,573 patients with rectal cancer, 20.8% and 14.5% were racialized as Black, respectively. Individuals racialized as Black were more likely to not receive guideline-concordant care for colon (adjusted OR [aOR], 1.18 [95% CI, 1.14 to 1.22]) and rectal (aOR, 1.27 [95% CI, 1.21 to 1.33]) cancers. Health insurance explained 28.2% and 21.6% of the disparity among patients with colon and rectal cancer, respectively. Individuals racialized as Black had increased time to adjuvant chemotherapy for colon cancer (hazard ratio [HR], 1.28 [95% CI, 1.24 to 1.32]) and neoadjuvant chemoradiation for rectal cancer (HR, 1.42 [95% CI, 1.37 to 1.47]) compared with individuals racialized as White. CONCLUSION: Patients with early-onset CRC racialized as Black receive worse and less timely care than individuals racialized as White. Health insurance, a modifiable factor, was the largest contributor to racial disparities in receipt of guideline-concordant care in this study.


Asunto(s)
Neoplasias del Colon , Neoplasias del Recto , Humanos , Estados Unidos , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Negro o Afroamericano , Seguro de Salud , Neoplasias del Colon/patología , Disparidades en Atención de Salud , Blanco
19.
JAMA Netw Open ; 7(1): e2351529, 2024 Jan 02.
Artículo en Inglés | MEDLINE | ID: mdl-38214932

RESUMEN

Importance: Medicaid expansion under the Patient Protection and Affordable Care Act is associated with gains in health insurance coverage, earlier stage diagnosis, and improved survival among patients with cancer. Objective: To examine the association of Medicaid expansion with changes in early mortality among adults undergoing surgical resection of non-small cell lung cancer (NSCLC), a setting in which access to care is a major determinant of survival. Design, Setting, and Participants: This cohort study used the National Cancer Database to identify 14 984 adults 45 to 64 years of age who underwent surgical resection of NSCLC between 2008 and 2019. Analysis was conducted between March 28, 2021, and September 1, 2023. Exposure: State of residence Medicaid expansion status. Main Outcomes and Measures: Descriptive statistics were used to compare study population characteristics by Medicaid expansion status of patients' state of residence. Difference-in-differences analyses were used to evaluate the association between Medicaid expansion and postoperative mortality before implementation of the ACA (2008-2013) vs after (2014-2019). Results: Among 14 984 adults included, the mean (SD) age was 56.3 (5.1) years, 54.6% were women, and 62.1% lived in Medicaid expansion states. Both 30-day (from 0.97% to 0.26%) and 90-day (from 2.63% to 1.32%) postoperative mortality decreased from before the ACA to after among patients residing in Medicaid expansion states (both P < .001) but not in nonexpansion states (30-day mortality before the ACA, 0.75% vs after the ACA, 0.68%; P = .74; and 90-day mortality before the ACA, 2.43% vs after the ACA, 2.20%; P = .57), leading to a difference-in-differences of -0.64 percentage points (95% CI, -1.19 to -0.08; P = .03) for 30-day mortality and -1.08 percentage points (95% CI, -2.08 to -0.08; P = .03) for 90-day mortality. The difference-in-differences for in-hospital mortality was not significant (P = .34) between expansion states (1.41% before the ACA to 0.77% after the ACA; 0.63 percentage point decrease; P = .004) and nonexpansion states (1.49% before the ACA to 1.20% after the ACA; 0.30 percentage point decrease; P = .29). Conclusions and Relevance: In this cohort study of patients with NSCLC, Medicaid expansion was associated with declines in 30- and 90-day postoperative mortality following hospital discharge. These findings suggest that Medicaid expansion may be an effective strategy for improving access to care and cancer outcomes in this population.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Adulto , Estados Unidos/epidemiología , Humanos , Femenino , Persona de Mediana Edad , Masculino , Medicaid , Patient Protection and Affordable Care Act , Carcinoma de Pulmón de Células no Pequeñas/cirugía , Estudios de Cohortes , Neoplasias Pulmonares/cirugía , Cobertura del Seguro
20.
JAMA Oncol ; 10(1): 109-114, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-37943539

RESUMEN

Importance: The COVID-19 pandemic led to disruptions in access to health care, including cancer care. The extent of changes in receipt of cancer treatment is unclear. Objective: To evaluate changes in the absolute number, proportion, and cancer treatment modalities provided to patients with newly diagnosed cancer during 2020, the first year of the pandemic. Design, Setting, and Participants: In this cohort study, adults aged 18 years and older diagnosed with any solid tumor between January 1, 2018, and December 31, 2020, were identified using the National Cancer Database. Data analysis was conducted from September 19, 2022, to July 28, 2023. Exposure: First year of the COVID-19 pandemic. Main Outcomes and Measures: The expected number of procedures for each treatment modality (surgery, radiotherapy, chemotherapy, immunotherapy, and hormonal therapy) in 2020 were calculated using historical data (January 1, 2018, to December 31, 2019) with the vector autoregressive method. The difference between expected and observed numbers was evaluated using a generalized estimating equation under assumptions of the Poisson distribution for count data. Changes in the proportion of different types of cancer treatments initiated in 2020 were evaluated using the additive outlier method. Results: A total of 3 504 342 patients (1 214 918 in 2018, mean [SD] age, 64.6 [13.6] years; 1 235 584 in 2019, mean [SD] age, 64.8 [13.6] years; and 1 053 840 in 2020, mean [SD] age, 64.9 [13.6] years) were included. Compared with expected treatment from previous years' trends, there were approximately 98 000 fewer curative intent surgical procedures performed, 38 800 fewer chemotherapy regimens, 55 500 fewer radiotherapy regimens, 6800 fewer immunotherapy regimens, and 32 000 fewer hormonal therapies initiated in 2020. For most cancer sites and stages evaluated, there was no statistically significant change in the type of cancer treatment provided during the first year of the pandemic, the exception being a statistically significant decrease in the proportion of patients receiving breast-conserving surgery and radiotherapy with a simultaneous statistically significant increase in the proportion of patients undergoing mastectomy for treatment of stage I breast cancer during the first months of the pandemic. Conclusions and Relevance: In this large national cohort study, a significant deficit was noted in the number of cancer treatments provided in the first year of the COVID-19 pandemic. Data indicated that this deficit in the number of cancer treatments provided was associated with decreases in the number of cancer diagnoses, not changes in treatment strategies.


Asunto(s)
Neoplasias de la Mama , COVID-19 , Adulto , Humanos , Persona de Mediana Edad , Anciano , Femenino , Neoplasias de la Mama/tratamiento farmacológico , Pandemias , Estudios de Cohortes , Mastectomía
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