RESUMO
Across two studies, we examined whether racially diverse contexts in combination with creating a third (multiracial) space played a protective role in the association between perceived monoracism and psychological adjustment for multiracial adults. Study 1 participants (N = 263; 77.8% female, Mage = 32.16 years) were recruited from national multiracial organizations and completed an online cross-sectional survey in 2009. Study 2 participants (N = 1478; 56.2% female, Mage = 48.89 years) were recruited by the Pew Research Center and completed a nationally representative survey in 2015. Results indicated significant three-way interaction effects on psychological adjustment, with differential effects depending on the types of perceived monoracism. Specifically, when subjective racial diversity was high, creating a third space buffered against the deleterious effects of multiracial discrimination on distress, negative affect, and life satisfaction; while it exacerbated the link between perceived racial ambiguity and negative affect. This study provides empirical evidence for the importance of using an ecological framework when examining multiracial identity and experiences. Results also highlight the need to move beyond conceptualizing and measuring multiracial experiences as dichotomous risks or resiliencies. Rather, we should aim to understand multiracial experiences as either promoting or inhibiting across contexts, time, and individual characteristics.
Assuntos
Ajustamento Emocional , Identificação Social , Adaptação Psicológica , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Grupos RaciaisRESUMO
This paper developed and validated a new measure of support for the Black Lives Matter (BLM) movement among a racially-ethnically diverse sample of college students. The measure focuses on the movement's principles of Black liberation, intersectionality, and alliance building. Participants included 1934 college students (75% female) from a large public Southwestern university. The factor structure was supported by exploratory and confirmatory factor analyses, resulting in an 18-item measure, Support for Black Lives Matter, with two underlying factors. Black Liberation includes 12 items representing support for BLM because of awareness of and challenging structural inequality and racism experienced by Black individuals. Intersectional Values includes six items representing support for BLM because it embraces and affirms marginalized populations within the Black community, especially disabled Blacks, queer Blacks, Black women, and Black families with children. Evidence of criterion-related validity was demonstrated with racial group differences in support of BLM factors. Evidence of convergent validity was supported by significant positive correlations between support for BLM factors and critical consciousness (including awareness of racism, classism, and heterosexism), and negative correlations between support for BLM factors and subtle racist attitudes toward Blacks. Measurement invariance was evident between White, Black, Asian American, Latinx, and Multiracial participants. Implications and suggestions for use of the new measure are discussed.
Assuntos
Negro ou Afro-Americano , Racismo , Asiático , Criança , Feminino , Humanos , Masculino , Estudantes , UniversidadesRESUMO
Renal ectopia also known as ectopic kidney is an embryological renal anomaly characterised by abnormal anatomical location of one or both of the kidneys. This can occur in various forms such as (1) crossed fused renal ectopia, (2) ectopic thoracic kidney and (3) pelvic kidneys. The lump kidney is one of the six variations of crossed fused ectopic kidney. Throughout life, the patient may remain asymptomatic, however, symptomatic patients may present with minor traumatic injuries due to the abnormal location or normal kidney pathologies. During normal embryological development, there is cephalic migration during which the kidneys ascend to their normal retroperitoneal location; therefore, an ectopic location is as a result of arrested migration. During this embryological development the kidney has multiple aorto-illiac branches, which degenerate when the kidney reaches its normal location. Here they develop new renal branches from the aorta and during an arrested ascent the ectopic kidney tends to retain some of the older aorto-iliac vessels. Hence, the arterial supply and the veineux drainage are grossly abnormal, reflecting the metanephric malascent and the primitive vascular arrangement. The collecting systems also present with important anatomical variations. We present an extremely rare case of right lump kidney with six renal arteries, two renal veins and two duplicated pelvicalyceal systems.
Assuntos
Coristoma/diagnóstico por imagem , Imageamento Tridimensional , Túbulos Renais Coletores/anormalidades , Rim , Tomografia Computadorizada Multidetectores/métodos , Malformações Vasculares/diagnóstico por imagem , Anormalidades Múltiplas/diagnóstico por imagem , Adulto , Angiografia/métodos , Humanos , Túbulos Renais Coletores/diagnóstico por imagem , Masculino , Doenças Raras , Artéria Renal/anormalidades , Artéria Renal/diagnóstico por imagem , Veias Renais/anormalidades , Veias Renais/diagnóstico por imagemRESUMO
BACKGROUND: The season of diagnosis of several forms of cancer has been observed to impact survival, supporting the hypothesis that vitamin D3 has a protective role in cancer survival. All previous studies demonstrating this seasonality were performed in European populations residing at latitudes upwards of 50°N. This study investigated whether seasonality of prognosis persists in populations residing in the lower latitudes of the contiguous United States (Latitude 21°N to 48°N). MATERIAL/METHODS: The 5-year survival data of 19 204 female breast cancer, 6740 colorectal cancer, and 1644 prostate cancer cases was analyzed. RESULTS: Female breast cancer patients exhibited improved survival when diagnosed in the summer as compared to the winter at all latitudes (Hazard Ratio [HR]: 0.940, 95%; Confidence Interval [CI]: 0.938 to 0.941, P=0.002). Colorectal cancer and prostate cancer also exhibited a similar seasonal pattern (HR: 0.978, 95% CI: 0.975 to 0.980, P=0.008 and HR: 0.935, 95%, CI 0.929 to 0.943, P=0.006), respectively, when the analysis was restricted to northern regions. CONCLUSIONS: These observations contribute to the mounting evidence that vitamin D3 may affect the progression of cancer. Data also suggest that vitamin D3 status at the onset of treatment may synergistically improve the prognosis of several cancer types.
Assuntos
Neoplasias da Mama/epidemiologia , Neoplasias Colorretais/epidemiologia , Geografia , Neoplasias da Próstata/epidemiologia , Estações do Ano , Neoplasias da Mama/diagnóstico , Neoplasias Colorretais/diagnóstico , Feminino , Humanos , Modelos Lineares , Masculino , Modelos de Riscos Proporcionais , Neoplasias da Próstata/diagnóstico , Programa de SEER , Estados Unidos/epidemiologiaRESUMO
BACKGROUND: Despite much epidemiological research on brain cancer in the United States, the etiology for the various subtypes remains elusive. The black population in the United States currently experiences lower incidence but higher survival rates when compared to other races. Thus, the aim of this study is to analyze the trends in incidence and survival for the 6 most common primary brain tumors in the black population of the United States. MATERIAL/METHODS: The Surveillance, Epidemiology, and End Results (SEER) database was utilized in this study to analyze the incidence and survival rates for the 6 most common brain tumor subtypes. Joinpoint 3.5.2 software was used to analyze trends in the incidence of diagnosis from 1973 to 2008. A Kaplan-Meier curve was generated to analyze mean time to death and survival at 60 months. RESULTS: Joinpoint analysis revealed that per year the incidence of brain cancer in the U.S. black population increased by 0.11 between 1973 and 1989. After this period, a moderate decrease by 0.06 per annum was observed from 1989 to 2008. Lymphoma was the most common primary tumor subtype for black individuals ages 20-34, and glioblastoma was identified as the most common tumor subtype for black individuals in the age groups of 35-49, 50-64, 65-79, and 80+. CONCLUSIONS: This population-based retrospective study of brain cancer in black adults in the United States revealed significant sex and age differences in the incidence of the 6 most common brain tumor subtypes from 1973 to 2008.
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Negro ou Afro-Americano/estatística & dados numéricos , Neoplasias Encefálicas/epidemiologia , Estimativa de Kaplan-Meier , Programa de SEER , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Neoplasias Encefálicas/diagnóstico , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estados Unidos/epidemiologia , Adulto JovemRESUMO
BACKGROUND: The aim of this study was to determine the most frequently presenting tumors exclusive to the head and neck within the pediatric population, and to identify racial disparities within the existing incidence rates. MATERIAL/METHODS: The population-based Surveillance, Epidemiology, and End Results (SEER) registry was utilized to identify the frequency and incidence rates of various tumors found exclusively in the head and neck, diagnosed between 1973 and 2008 in pediatric patients. The tumor categories were based on those defined by the US Department of Health and Human Services National Cancer Institute (NCI). Proportional comparisons were applied to evaluate the intra-demographic incidence rate differences. RESULTS: Among the 11 categories defined, the 5 most prevalent head and neck cancers within the pediatric population were salivary gland tumors (n=319); followed by nasopharyngeal neoplasms (n=311); tumors of the nose, nasal cavity and middle ear (n=208); gum and other mouth tumors (n=134); and glossal tumors (n=61). Proportional comparisons between racial frequency rates indicated that salivary gland tumors were greatest among white pediatric patients (n=246, CI=0.8 to 14.1%, p<.05). Nasopharyngeal cancers were highest among blacks (CI=-26.8 to -12.1%) and other races (CI=-23.6 to -3.4%) relative to the white population. CONCLUSIONS: Salivary gland tumors were the most commonly seen head and neck tumors overall among pediatric patients between 1973 and 2008. Incidence rate differences between white, black, and other racial background pediatric patients revealed that overall, head and neck tumors are most prevalent among pediatric patients within the white ethnic population, while nasopharyngeal tumors showed a strong prevalence in blacks and other ethnic populations.
Assuntos
Bases de Dados como Assunto , Demografia , Neoplasias de Cabeça e Pescoço/epidemiologia , Programa de SEER , Adolescente , Criança , Pré-Escolar , Etnicidade , Humanos , Incidência , Lactente , Análise de Regressão , Adulto JovemRESUMO
INTRODUCTION: Central nervous system tumors are the second most common form of cancer in children between the ages of 1 and 19 years. We aimed to provide the most recent data on the incidence and survival of these tumors in the USA and to assess the literature. METHODS: Frequency, rates, and survival sessions were calculated using the November 2008 submission for the US Surveillance Epidemiology and End Results Program. Data were collected and analyzed for children and adolescents aged 1 to 19 years with primary brain tumors. RESULTS: We found that the incidence rate of all pediatric brain tumors has been on a gradual but steady increase from 1973 to 2008 (p < 0.001). The average annual increase was 1.37 %. Our survival analysis of the individual tumors revealed that the 5-year overall survival for children diagnosed between 1974 and 1978 with medulloblastoma was 43.7 %. However, this increased to 62.8 % for children diagnosed between 1999 and 2003. A similar survival trend was also observed when all the other pediatric brain cancer histologies were collectively analyzed (p < 0.001). CONCLUSIONS: From our study, we can conclude that contrary to previous reports indicating a plateau in the incidence rates of pediatric brain tumors since the mid-1980s, there has been an increase from 1973 to 2008. Potential causes include environmental carcinogens, but more research is needed to investigate the factors behind this sustained rise in incidence over the years.
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Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/mortalidade , Bases de Dados Factuais/tendências , Estatística como Assunto/tendências , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Incidência , Lactente , Masculino , Taxa de Sobrevida/tendências , Estados Unidos/epidemiologia , Adulto JovemRESUMO
Ectopia cordis (EC) is a rare congenital anomaly associated with the heart positioned outside of the thoracic cavity either partially or completely. The ectopic heart can be found along a spectrum of anatomical locations, including the cervical, thoracic and abdominal regions and in most cases, it protrudes outside the chest through a split sternum. Although the first case of EC was identified during the early 1600s only 91 cases have been reported since then in the literature. This review will discuss the history and prevalence of EC, its etiology, morphology, presentation and symptoms, complications, diagnosis, treatment and management and prognosis.
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Ectopia Cordis/embriologia , Doenças Raras , Ectopia Cordis/história , Ectopia Cordis/cirurgia , História do Século XVII , História do Século XVIII , História do Século XIX , História do Século XX , História do Século XXI , HumanosRESUMO
The field of psychology is coming toward a critical juncture; scholars are increasingly recognizing that race, ethnicity, and culture play important roles in their fields of study, but do not always have the language to integrate race and culture into their own work. Furthermore, common conceptions of race may systematically exclude those from multiple racial and ethnic backgrounds in favor of fixed and discrete racial categories that ultimately perpetuate white supremacy. Meanwhile, as the Multiracial population of the U.S. is growing at an unprecedented rate, psychologists need language to acknowledge this population in their studies and pursue research to advance the field's knowledge of this diverse group and its many subpopulations. In an attempt to educate psychologists across subfields and disciplines, we provide a detailed account of preferred terms related to race and ethnicity with emphasis on ways to think about and talk about Multiracial populations in the United States. While preferred terms may change across time, the aim of this article is to provide psychologists with the tools to begin nuanced and necessary discussions about how race informs their research and the populations they work with in uniform and nonstigmatizing ways. By highlighting terminology related to those of multiple racial and ethnic backgrounds, we demystify and legitimize these rapidly growing but often hidden populations. Different perspectives on various terms are provided throughout to set psychologists on the path to beginning more race-conscious conversations and scientific inquiries into the experiences of Multiracial Americans and those from other marginalized racial-ethnic groups. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Etnicidade , Grupos Raciais , Comunicação , Humanos , Estados UnidosRESUMO
Objectives: Stress is the most commonly reported impediment to academic performance among college students. The objectives of this study were to examine the accuracy of these perceptions, identify demographic and psychosocial factors that distinguished among students who differed in perceptions of how stress affected their performance, and assess the relations between these factors and grade point average (GPA). Participants: Undergraduate students (N = 8,997) from 20 Midwestern schools. Methods: Participants completed online surveys during February-March 2015 that assessed perceived impediments to academic performance, cumulative GPA, demographic information, and psychosocial factors. Results: Students who reported that stress affected their performance had lower GPAs, and reported more stress and lower coping self-efficacy, resilience, and social support. Male, heterosexual, and ethnic-minority students were less likely to report having stress (but did not have higher GPAs). Conclusion: Stress reduction interventions should target psychosocial factors related to perceiving stress as an impediment and to poorer performance.
Assuntos
Desempenho Acadêmico , Autoeficácia , Estresse Psicológico/psicologia , Estudantes/psicologia , Adaptação Psicológica , Adolescente , Avaliação Educacional , Feminino , Humanos , Masculino , Autoimagem , Apoio Social , Universidades , Adulto JovemRESUMO
BACKGROUND Levamisole is a common adulterant of cocaine. It can cause agranulocytosis and cutaneous vasculitis that can possibly lead to cutaneous necrosis. In all reported cases of levamisole-induced vasculitis, it has been described as a clinical syndrome characterized by a constellation of typical clinical features and a positive serum serology for ANCA levels, especially very high-titer p-ANCA levels, in the background of cocaine abuse. However, patients may have a negative serology and here, we present the first such case. CASE REPORT A 58-year-old African American man with a history of polysubstance abuse, 4 days after last cocaine use, presented with sudden onset of painful pruritic rash and polyarthralgias. He was found to have normal vital signs, with bilateral tender knees and erythematous-purplish maculopapular lesions involving the abdomen and the left thigh. Laboratory work-up was significant for elevated CRP, negative c-ANCA, p-ANCA ANA, and RA levels, and a positive urine toxicology for cocaine. Urine analysis by high-performance liquid chromatography was positive for levamisole. Ultimately, a final diagnosis was made by skin biopsy, which revealed findings suggestive of leukocytoclastic vasculitis. CONCLUSIONS Cutaneous leukocytoclastic vasculitis can be caused by levamisole, which is used as an adulterant in cocaine. Most cases are associated with positive ANCA levels; however, a negative serology is also a possibility.
Assuntos
Transtornos Relacionados ao Uso de Cocaína/complicações , Contaminação de Medicamentos , Levamisol/efeitos adversos , Vasculite Leucocitoclástica Cutânea/induzido quimicamente , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
Coronary arterial fistulas are abnormal connections between the coronary arteries and the chambers of the heart or major thoracic vessels. Although first described in 1841, the true incidence is difficult to evaluate because approximately half of the cases may be asymptomatic and clinically undetectable. This review will discuss the history and prevalence of coronary artery fistulas and their morphology, histology, presentation, diagnosis, treatment options, and complications.
Assuntos
Doença da Artéria Coronariana/patologia , Fístula/patologia , Animais , HumanosRESUMO
The purpose of this study was to evaluate the topography of the saphenous nerve branches and of the popliteal neurovascular bundle of knee and to establish a low risk placement position of the posteromedial knee portal (PmKP). A slice anatomy study, by using plastinated transparent knee cross-sections was performed on 12 intact right male cadaver lower limbs. The measurements were performed at the level of the medial epicondyle (MEc), at the joint line level and at the level of the tibial attachment of the posterior cruciate ligament (PCL). The popliteal artery (PA) is predicted to be 8.66±2.17 mm dorsal and the sartorial branch of the saphenous nerve (SBSN) at 4.27±0.05 mm posterior to the joint capsule at the level of the MEc. At the joint level, the PA is 7.86±2.26 mm away from the PCL and the SBSN is predicted at 2.41±0.12 mm posterior to the joint capsule. At the level of the tibial attachment of the PCL, the PA to PCL the distance is 5.93±3.61 mm and the SBSN is situated at 4.36±0.43 mm posterior to the joint capsule. Based on our anatomic data, a PmKP placed at the level of the MEc appears to be safe, effective, and reproducible. At the level of MEc, the PA is situated widely lateral to the MEc and the distance between the saphenous nerve branches and the articular capsule is greater than on the other levels. This study suggests that by placing the PmKP at the level of MEc, the risk of neurovascular injuries could be reduced.
Assuntos
Articulação do Joelho/irrigação sanguínea , Articulação do Joelho/inervação , Idoso , Idoso de 80 Anos ou mais , Humanos , Imageamento Tridimensional , Articulação do Joelho/anatomia & histologia , MasculinoRESUMO
There are several reports of multiple ectopic renal arteries (RA) in the literature. However, the ectopic origin of a single RA with a normal kidney position is rare. Knowledge of this variant is extremely important in clinical, surgical and radiological practice. Using MDCT angiography examination, we describe a rare case of a right kidney located in a normal lumbal position with a single ectopic thoracic renal artery originating in the thorax, above the diaphragmatic dome, at the level of the upper one-third of the T12 vertebral body. With an "S"-shaped course and a total length of 103 mm, this artery had an intratoracic portion of 38 mm. It crossed the diaphragm at 23 mm lateral to the right side of the TA, through a hiatus located on the lateral side of the right crus of the diaphragm. The right inferior phrenic artery arose from the left lateral wall of the right RA, 5 mm below the level of CT (45 mm distal to the right RA origin). Remarkably, this variant was associated with an area of proximal arterial stenosis, which produced signs and symptoms of hypertension secondary to renal arterial stenosis. To the authors' knowledge, this is the first reported case of a stenotic single ectopic thoracic renal artery associated with a normal kidney position.