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1.
N Engl J Med ; 385(13): 1172-1183, 2021 09 23.
Artículo en Inglés | MEDLINE | ID: mdl-34192426

RESUMEN

BACKGROUND: Early clinical data from studies of the NVX-CoV2373 vaccine (Novavax), a recombinant nanoparticle vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that contains the full-length spike glycoprotein of the prototype strain plus Matrix-M adjuvant, showed that the vaccine was safe and associated with a robust immune response in healthy adult participants. Additional data were needed regarding the efficacy, immunogenicity, and safety of this vaccine in a larger population. METHODS: In this phase 3, randomized, observer-blinded, placebo-controlled trial conducted at 33 sites in the United Kingdom, we assigned adults between the ages of 18 and 84 years in a 1:1 ratio to receive two intramuscular 5-µg doses of NVX-CoV2373 or placebo administered 21 days apart. The primary efficacy end point was virologically confirmed mild, moderate, or severe SARS-CoV-2 infection with an onset at least 7 days after the second injection in participants who were serologically negative at baseline. RESULTS: A total of 15,187 participants underwent randomization, and 14,039 were included in the per-protocol efficacy population. Of the participants, 27.9% were 65 years of age or older, and 44.6% had coexisting illnesses. Infections were reported in 10 participants in the vaccine group and in 96 in the placebo group, with a symptom onset of at least 7 days after the second injection, for a vaccine efficacy of 89.7% (95% confidence interval [CI], 80.2 to 94.6). No hospitalizations or deaths were reported among the 10 cases in the vaccine group. Five cases of severe infection were reported, all of which were in the placebo group. A post hoc analysis showed an efficacy of 86.3% (95% CI, 71.3 to 93.5) against the B.1.1.7 (or alpha) variant and 96.4% (95% CI, 73.8 to 99.5) against non-B.1.1.7 variants. Reactogenicity was generally mild and transient. The incidence of serious adverse events was low and similar in the two groups. CONCLUSIONS: A two-dose regimen of the NVX-CoV2373 vaccine administered to adult participants conferred 89.7% protection against SARS-CoV-2 infection and showed high efficacy against the B.1.1.7 variant. (Funded by Novavax; EudraCT number, 2020-004123-16.).


Asunto(s)
Vacunas contra la COVID-19 , COVID-19/prevención & control , Inmunogenicidad Vacunal , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , COVID-19/epidemiología , Vacunas contra la COVID-19/administración & dosificación , Vacunas contra la COVID-19/efectos adversos , Vacunas contra la COVID-19/inmunología , Humanos , Inyecciones Intramusculares/efectos adversos , Persona de Mediana Edad , SARS-CoV-2 , Método Simple Ciego , Vacunas Sintéticas/inmunología , Adulto Joven
2.
Clin Infect Dis ; 76(3): 398-407, 2023 02 08.
Artículo en Inglés | MEDLINE | ID: mdl-36210481

RESUMEN

BACKGROUND: The recombinant protein-based vaccine, NVX-CoV2373, demonstrated 89.7% efficacy against coronavirus disease 2019 (COVID-19) in a phase 3, randomized, observer-blinded, placebo-controlled trial in the United Kingdom. The protocol was amended to include a blinded crossover. Data to the end of the placebo-controlled phase are reported. METHODS: Adults aged 18-84 years received 2 doses of NVX-CoV2373 or placebo (1:1) and were monitored for virologically confirmed mild, moderate, or severe COVID-19 (onset from 7 days after second vaccination). Participants who developed immunoglobulin G (IgG) against nucleocapsid protein but did not show symptomatic COVID-19 were considered asymptomatic. Secondary outcomes included anti-spike (S) IgG responses, wild-type virus neutralization, and T-cell responses. RESULTS: Of 15 185 participants, 13 989 remained in the per-protocol efficacy population (6989 NVX-CoV2373, 7000 placebo). At a maximum of 7.5 months (median, 4.5) postvaccination, there were 24 cases of COVID-19 among NVX-CoV2373 recipients and 134 cases among placebo recipients, a vaccine efficacy of 82.7% (95% confidence interval [CI], 73.3%-88.8%). Vaccine efficacy was 100% (95% CI, 17.9%-100.0%) against severe disease and 76.3% (95% CI, 57.4%-86.8%) against asymptomatic disease. High anti-S and neutralization responses to vaccination were evident, together with S-protein-specific induction of interferon-γ secretion in peripheral blood T cells. Incidence of serious adverse events and adverse events of special interest were similar between groups. CONCLUSIONS: A 2-dose regimen of NVX-CoV2373 conferred a high level of ongoing protection against asymptomatic, symptomatic, and severe COVID-19 through >6 months postvaccination. A gradual decrease of protection suggests that a booster may be indicated. CLINICAL TRIALS REGISTRATION: EudraCT, 2020-004123-16.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , Adulto , Humanos , Vacunas contra la COVID-19/efectos adversos , COVID-19/prevención & control , SARS-CoV-2 , Vacunas Sintéticas/efectos adversos , Inmunoglobulina G , Inmunogenicidad Vacunal , Método Doble Ciego , Anticuerpos Antivirales
4.
BMC Health Serv Res ; 20(1): 980, 2020 Oct 27.
Artículo en Inglés | MEDLINE | ID: mdl-33109162

RESUMEN

BACKGROUND: Patient-Centered Medical Home (PCMH) adoption is an important strategy to help improve primary care quality within Health Resources and Service Administration (HRSA) community health centers (CHC), but evidence of its effect thus far remains mixed. A limitation of previous evaluations has been the inability to account for the proportion of CHC delivery sites that are designated medical homes. METHODS: Retrospective cross-sectional study using HRSA Uniform Data System (UDS) and certification files from the National Committee for Quality Assurance (NCQA) and the Joint Commission (JC). Datasets were linked through geocoding and an approximate string-matching algorithm. Predicted probability scores were regressed onto 11 clinical performance measures using 10% increments in site-level designation using beta logistic regression. RESULTS: The geocoding and approximate string-matching algorithm identified 2615 of the 6851 (41.8%) delivery sites included in the analyses as having been designated through the NCQA and/or JC. In total, 74.7% (n = 777) of the 1039 CHCs that met the inclusion criteria for the analysis managed at least one NCQA- and/or JC-designated site. A proportional increase in site-level designation showed a positive association with adherence scores for the majority of all indicators, but primarily among CHCs that designated at least 50% of its delivery sites. Once this threshold was achieved, there was a stepwise percentage point increase in adherence scores, ranging from 1.9 to 11.8% improvement, depending on the measure. CONCLUSION: Geocoding and approximate string-matching techniques offer a more reliable and nuanced approach for monitoring the association between site-level PCMH designation and clinical performance within HRSA's CHC delivery sites. Our findings suggest that transformation does in fact matter, but that it may not appear until half of the delivery sites become designated. There also appears to be a continued stepwise increase in adherence scores once this threshold is achieved.


Asunto(s)
Centros Comunitarios de Salud/normas , Atención Dirigida al Paciente , Indicadores de Calidad de la Atención de Salud , United States Health Resources and Services Administration , Adolescente , Adulto , Estudios Transversales , Bases de Datos Factuales , Atención a la Salud , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Atención Primaria de Salud/organización & administración , Calidad de la Atención de Salud/organización & administración , Estudios Retrospectivos , Estados Unidos , Adulto Joven
5.
Mult Scler ; 24(3): 262-267, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-28080254

RESUMEN

BACKGROUND: People with multiple sclerosis (MS) have identified "wellness" and associated behaviors as a high priority based on "social media listening" undertaken by the National MS Society (i.e. the Society). OBJECTIVE: The Society recently convened a group that consisted of researchers with experience in MS and wellness-related research, Society staff members, and an individual with MS for developing recommendations regarding a wellness research agenda. METHOD: The members of the group engaged in focal reviews and discussions involving the state of science within three approaches for promoting wellness in MS, namely diet, exercise, and emotional wellness. RESULTS: That process informed a group-mediated activity for developing and prioritizing research goals for wellness in MS. This served as a background for articulating the mission and objectives of the Society's Wellness Research Working Group. CONCLUSION: The primary mission of the Wellness Research Working Group is the provision of scientific evidence supporting the application of lifestyle, behavioral, and psychosocial approaches for promoting optimal health of mind, body, and spirit (i.e. wellness) in people with MS as well as managing the disease and its consequences.


Asunto(s)
Investigación Biomédica , Dieta Saludable , Ejercicio Físico , Esclerosis Múltiple , Sociedades Médicas , Humanos , Esclerosis Múltiple/dietoterapia , Esclerosis Múltiple/psicología , Esclerosis Múltiple/rehabilitación
6.
BMC Health Serv Res ; 18(1): 974, 2018 Dec 17.
Artículo en Inglés | MEDLINE | ID: mdl-30558611

RESUMEN

BACKGROUND: In July 2018, the Centers for Medicare and Medicaid Services (CMS) updated its Medicaid Managed Care (MMC) regulations that govern network and access standards for enrollees. There have been few published studies of whether there is accurate geographic information on primary care providers to monitor network adequacy. METHODS: We analyzed a sample of nurse practitioner (NP) and physician address data registered in the state labor, licensing, and regulation (LLR) boards and the National Provider Index (NPI) using employment location data contained in the patient-centered medical home (PCMH) data file. Our main outcome measures were address discordance (%) at the clinic-level, city, ZIP code, and county spatial extent and the distance, in miles, between employment location and the LLR/NPI address on file. RESULTS: Based on LLR records, address information provided by NPs corresponded to their place of employment in 5% of all cases. NP address information registered in the NPI corresponded to their place of employment in 64% of all cases. Among physicians, the address information provided in the LLR and NPI corresponded to the place of employment in 64 and 72% of all instances. For NPs, the average distance between the PCMH and the LLR address was 21.5 miles. Using the NPI, the distance decreased to 7.4 miles. For physicians, the average distance between the PCMH and the LLR and NPI addresses was 7.2 and 4.3 miles. CONCLUSIONS: Publicly available data to forecast state-wide distributions of the NP workforce for MMC members may not be reliable if done using state licensure board data. Meaningful improvements to correspond with MMC policy changes require collecting and releasing information on place of employment.


Asunto(s)
Licencia Médica/estadística & datos numéricos , Programas Controlados de Atención en Salud/estadística & datos numéricos , Medicaid/estadística & datos numéricos , Enfermeras Practicantes/estadística & datos numéricos , Médicos/estadística & datos numéricos , Empleo/estadística & datos numéricos , Humanos , Licencia en Enfermería/estadística & datos numéricos , Enfermeras Practicantes/provisión & distribución , Atención Dirigida al Paciente/estadística & datos numéricos , Viaje/estadística & datos numéricos , Estados Unidos
8.
Int J Equity Health ; 15: 89, 2016 Jun 10.
Artículo en Inglés | MEDLINE | ID: mdl-27282199

RESUMEN

BACKGROUND: Measures of small-area deprivation may be valuable in geographically targeting limited resources to prevent, diagnose, and effectively manage chronic conditions in vulnerable populations. We developed a census-based small-area socioeconomic deprivation index specifically to predict chronic disease burden among publically insured Medicaid recipients in South Carolina, a relatively poor state in the southern United States. We compared the predictive ability of the new index with that of four other small-area deprivation indicators. METHODS: To derive the ZIP Code Tabulation Area-Level Palmetto Small-Area Deprivation Index (Palmetto SADI), we evaluated ten census variables across five socioeconomic deprivation domains, identifying the combination of census indicators most highly correlated with a set of five chronic disease conditions among South Carolina Medicaid enrollees. In separate validation studies, we used both logistic and spatial regression methods to assess the ability of Palmetto SADI to predict chronic disease burden among state Medicaid recipients relative to four alternative small-area socioeconomic deprivation measures: the Townsend index of material deprivation; a single-variable poverty indicator; and two small-area designations of health care resource deprivation, Primary Care Health Professional Shortage Area and Medically Underserved Area/Medically Underserved Population. RESULTS: Palmetto SADI was the best predictor of chronic disease burden (presence of at least one condition and presence of two or more conditions) among state Medicaid recipients compared to all alternative deprivation measures tested. CONCLUSIONS: A low-cost, regionally optimized socioeconomic deprivation index, Palmetto SADI can be used to identify areas in South Carolina at high risk for chronic disease burden among Medicaid recipients and other low-income Medicaid-eligible populations for targeted prevention, screening, diagnosis, disease self-management, and care coordination activities.


Asunto(s)
Enfermedad Crónica/epidemiología , Enfermedad Crónica/terapia , Costo de Enfermedad , Geografía , Pobreza/estadística & datos numéricos , Clase Social , Humanos , South Carolina
9.
Artículo en Inglés | MEDLINE | ID: mdl-38959237

RESUMEN

BACKGROUND: Lesbian, gay, bisexual, transgender, and queer or questioning (LGBTQ+) individuals are significantly less likely to have a primary health care provider, be uninsured, and postpone medical care. A health care provider's lack of knowledge in LGBTQ+ health needs, low confidence in discussing sexuality, and bias can result in LGBTQ+ patients choosing to delay or avoid seeking care. These are missed opportunities for health care providers to recognize their unique needs, provide education and preventive screenings and care, and manage chronic conditions. PURPOSE: The aim of this study was to examine nurse practitioner students' perceptions of knowledge, confidence, and experiences related to caring for LGBTQ+ patients. METHODOLOGY: Using a descriptive, cross-sectional survey research design, a 29-item online survey was distributed through email to nurse practitioner students (n = 419) across the United States. RESULTS: Overall, nurse practitioners (NP) students demonstrated infrequent questioning related to gender preferences, sexual terms, and clarification of relationships. Results showed that 77.9% of NP students within two terms of graduation had not received any LGBTQ+-specific training. Almost 75% of the NP students reported not routinely asking about sexuality, and 82% reported infrequently or never asking gender identity. Furthermore, 93.1% of respondents reported providers infrequently or never ask about preferred gender or pronouns, and 86% reported providers infrequently inquire about sexual identity in primary care visits. CONCLUSIONS: Study findings demonstrate the uniqueness of managing care for LGBTQ+ patients and importance for more detailed LGBTQ+ health training in curricula in NP programs. IMPLICATIONS: Closing the gap in health care for LGBTQ+ patients is paramount in addressing global health disparities and population care.

10.
Intensive Crit Care Nurs ; 83: 103718, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38761612

RESUMEN

BACKGROUND: Post-intensive care syndrome is a new or worsening persistent deterioration in cognitive, mental, and/or physical health following a prolonged admission to an intensive care unit. Post-intensive care syndrome remains underexplored following cardiac surgery, with a lack of understanding of the incidence and tools used to measure the symptoms. A scoping review was conducted to determine the incidence and to identify the tools commonly used to measure symptoms of post-intensive care syndrome following cardiac surgery. METHODS: The electronic databases Medline (Ovid), EMBASE (Ovid), PsycINFO (Ovid), Scopus, and CINAHL (EBSCOhost) and Google Scholar were searched with keywords and controlled vocabulary to describe both cardiac surgery and post-intensive care syndrome (cardiac surgical procedures, heart surgery, and post-intensive care symptoms) and symptoms (delirium, depression, mobility and quality of life). Included were articles written in English and published after 2005 that described cognitive, mental, and physical symptoms of post-intensive care syndrome following cardiac surgery. 3,131 articles were found, with 565 duplicates, leaving 2,566 articles to be screened. Of these, seven unique studies were included. RESULTS: Five studies explored cognitive health, three mental health, one cognitive and mental health, and none physical health. No identified studies reported the overall incidence of post-intensive care syndrome following cardiac surgery. The incidence of cognitive health issues ranged from 21% to 38%, and mental health issues ranged from 16% to 99%. In total, 17 different tools were identified - 14 for cognitive health and three for mental health. No identified studies used the same tools to measure symptoms. No single tool was found to measure all three domains. CONCLUSION: This scoping review identified a literature gap specific to the incidence and inconsistency of assessment tools for post-intensive care syndrome in cardiac surgery patients. CLINICAL IMPLICATIONS: This work impacts clinical practice for the bedside nurse by raising awareness of an emerging health issue.


Asunto(s)
Procedimientos Quirúrgicos Cardíacos , Humanos , Incidencia , Procedimientos Quirúrgicos Cardíacos/efectos adversos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/diagnóstico , Complicaciones Posoperatorias/etiología , Unidades de Cuidados Intensivos/organización & administración , Unidades de Cuidados Intensivos/estadística & datos numéricos , Calidad de Vida/psicología , Enfermedad Crítica
11.
Pilot Feasibility Stud ; 9(1): 58, 2023 Apr 13.
Artículo en Inglés | MEDLINE | ID: mdl-37055859

RESUMEN

BACKGROUND: Informed consent is critical to the ethical conduct of clinical research and requires understanding of a trial including its purpose, process, potential risks and benefits, and alternatives to participation. This can be challenging for complex trials, such as platform trials, and in high-stress environments, such as the intensive care unit (ICU). REMAP-CAP (randomized, embedded, multifactorial, adaptive platform trial for community-acquired pneumonia) is a platform trial which studies treatments for ICU patients with community-acquired pneumonia, including COVID-19. Patient/family partners (PFP) identified challenges during the REMAP-CAP consent process. METHODS: This is a patient-centred co-design study to refine and test an infographic to supplement current REMAP-CAP consent documents. Infographic prototypes were developed by patients, substitute decision-makers (SDMs), and researchers with lived experience in the ICU or with ICU research. We will apply a two-phase exploratory sequential, mixed-methods research design. In phase 1, we will conduct focus groups with ICU patients, SDMs, and research coordinators (RCs). We will use inductive content analysis to inform infographic refinement, to be pilot tested in phase 2. Phase 2 is a prospective study within a trial (SWAT) at ≤ 5 REMAP-CAP sites. We will collect self-reported data from patients/SDMs and RCs. The primary outcome is feasibility (eligible consent encounters, receipt of infographic, consent to follow-up, completion of follow-up surveys). Data will be integrated to understand if/how quantitative results build upon the qualitatively informed infographic. DISCUSSION: Phase 1 results will be used to co-design an infographic, directly informed by the perspectives of patients, SDMs, and RCs involved in ICU research consent discussions. Results from phase 2 will determine the feasibility of infographic implementation in REMAP-CAP consent encounters. These feasibility data will inform a larger SWAT to evaluate our consent infographic. If successful, use of a co-designed infographic to support REMAP-CAP consent documents may improve the experience of consent for patients, SDMs, and RCs. TRIAL REGISTRATION: The Northern Ireland Hub for Trials Methodology Research SWAT Repository (SWAT no. 176).

12.
JAMA Netw Open ; 6(7): e2322798, 2023 07 03.
Artículo en Inglés | MEDLINE | ID: mdl-37432685

RESUMEN

Importance: The South Carolina (SC) Healthy Outcomes Plan (HOP) program aimed to expand access to health care to individuals without insurance; it remains unknown whether there is an association between the SC HOP program and emergency department (ED) use among patients with high health care costs and needs. Objectives: To determine whether participation in the SC HOP was associated with reduced ED utilization among uninsured participants. Design, Setting, and Participants: This retrospective cohort study included 11 684 HOP participants (ages 18-64 years) with at least 18 months of continuous enrollment. Generalized estimating equations and segmented regression of interrupted time-series analyses of ED visits and charges were conducted from October 1, 2012, to March 31, 2020. Exposures: Time intervals related to the HOP were 1 year before and 3 years after participation. Main Outcomes and Measures: ED visits per 100 participants per month and ED charges per participant per month overall and by subcategory. Results: The mean (SD) age of the 11 684 participants in the study was 45.2 (10.9) years; 6293 (54.5%) were women; 5028 (48.4%) were Black participants and 5189 (50.0%) were White participants. Over the study period, the mean (SE) number of ED visits decreased by 44.1%, from 48.1 (5.2) to 26.9 (2.8) per 100 participants per month. The mean (SE) ED charges were reduced to $858 ($46) per participant per month, a decrease from a mean (SE) of $1583 ($88) per participant per month 1 year before HOP implementation. There was an immediate level decrease of 40% (relative risk [RR], 0.61; 99.5% CI, 0.48-0.76; P < .001) from the preenrollment period, with a sustained reduction trend of 8% (RR 0.92; 99.5% CI, 0.89-0.95; P < .001) during the postenrollment period. A level change for ED charges was detected, at a decrease of 40% (RR 0.60; 99.5% CI, 0.47-0.77; P < .001) directly after HOP enrollment with a subsequent downward trend of 10% (RR 0.90; 99.5% CI, 0.86-0.93; P < .001) for the postenrollment period. Conclusions and Relevance: In this retrospective cohort study, proportions and charges of ED visits by uninsured patients saw immediate and sustained decreases after HOP enrollment. Reducing ED charges may have been driven by decreasing the ED as the primary point of patient care, especially for high-frequency users. These findings have implications for other nonexpansion states seeking to maximize uninsured compensation for low-income populations through improved outcomes.


Asunto(s)
Pacientes no Asegurados , Motivación , Humanos , Femenino , Persona de Mediana Edad , Masculino , Estudios Retrospectivos , Servicio de Urgencia en Hospital , Hospitales
13.
Vaccine ; 41(29): 4280-4286, 2023 06 29.
Artículo en Inglés | MEDLINE | ID: mdl-37271706

RESUMEN

The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants has significantly reduced the efficacy of some approved vaccines. A fourth dose of NVX-CoV2373 (5 µg SARS-CoV-2 recombinant spike [rS] protein + 50 µg Matrix-M™ adjuvant; Novavax, Gaithersburg, MD) was evaluated to determine induction of cross-reactive antibodies to variants of concern. A phase II randomized study (NCT04368988) recruited participants in Australia and the United States to assess a primary series of NVX-CoV2373 followed by two booster doses (third and fourth doses at 6-month intervals) in adults 18-84 years of age. The primary series was administered when the SARS-CoV-2 ancestral strain was prevalent and the third and fourth doses while the Alpha and Delta variants were prevalent in AUS and US. Local/systemic reactogenicity was assessed the day of vaccination and for 6 days thereafter. Unsolicited adverse events (AEs) were reported. Immunogenicity was measured before, and 14 days after, fourth dose administration, using anti-spike serum immunoglobulin G (IgG) and neutralization assays against ancestral SARS-CoV-2 strain and Omicron sublineages. Among 1283 enrolled participants, 258 were randomized to receive the two-dose primary series, of whom 104 received a third dose, and 45 received a fourth dose of NVX-CoV2373. The incidence of local/systemic reactogenicity events increased after the first three doses of NVX-CoV2373 and leveled off after dose 4. Unsolicited AEs were reported in 9 % of participants after dose 4 (none of which were severe or serious). Anti-rS IgG levels and neutralization antibody titers increased following booster doses to a level approximately four-fold higher than that observed after the primary series, with a progressively narrowed gap in response between the ancestral strain and Omicron BA.5. A fourth dose of NVX-CoV2373 enhanced immunogenicity for ancestral and variant SARS-CoV-2 strains without increasing reactogenicity, indicating that updates to the vaccine composition may not be currently warranted.


Asunto(s)
COVID-19 , Adulto , Humanos , COVID-19/prevención & control , SARS-CoV-2 , Inmunoglobulina G , Inmunogenicidad Vacunal , Anticuerpos Antivirales , Anticuerpos Neutralizantes
14.
Nature ; 442(7101): 461-5, 2006 Jul 27.
Artículo en Inglés | MEDLINE | ID: mdl-16688182

RESUMEN

Chronic inflammation has long been associated with increased incidence of malignancy and similarities in the regulatory mechanisms have been suggested for more than a century. Infiltration of innate immune cells, elevated activities of matrix metalloproteases and increased angiogenesis and vasculature density are a few examples of the similarities between chronic and tumour-associated inflammation. Conversely, the elimination of early malignant lesions by immune surveillance, which relies on the cytotoxic activity of tumour-infiltrating T cells or intra-epithelial lymphocytes, is thought to be rate-limiting for the risk to develop cancer. Here we show a molecular connection between the rise in tumour-associated inflammation and a lack of tumour immune surveillance. Expression of the heterodimeric cytokine interleukin (IL)-23, but not of its close relative IL-12, is increased in human tumours. Expression of these cytokines antagonistically regulates local inflammatory responses in the tumour microenvironment and infiltration of intra-epithelial lymphocytes. Whereas IL-12 promotes infiltration of cytotoxic T cells, IL-23 promotes inflammatory responses such as upregulation of the matrix metalloprotease MMP9, and increases angiogenesis but reduces CD8 T-cell infiltration. Genetic deletion or antibody-mediated elimination of IL-23 leads to increased infiltration of cytotoxic T cells into the transformed tissue, rendering a protective effect against chemically induced carcinogenesis. Finally, transplanted tumours are growth-restricted in hosts depleted for IL-23 or in IL-23-receptor-deficient mice. Although many strategies for immune therapy of cancer attempt to stimulate an immune response against solid tumours, infiltration of effector cells into the tumour tissue often appears to be a critical hurdle. We show that IL-23 is an important molecular link between tumour-promoting pro-inflammatory processes and the failure of the adaptive immune surveillance to infiltrate tumours.


Asunto(s)
Interleucinas/metabolismo , Neoplasias/metabolismo , Neoplasias/patología , Animales , Linfocitos T CD8-positivos/inmunología , División Celular , Predisposición Genética a la Enfermedad , Humanos , Inflamación/genética , Inflamación/patología , Interleucina-12/biosíntesis , Interleucina-12/inmunología , Interleucina-23 , Subunidad p19 de la Interleucina-23 , Interleucinas/biosíntesis , Interleucinas/deficiencia , Interleucinas/genética , Ratones , Ratones Endogámicos C57BL , Neoplasias/genética , Neoplasias/inmunología , Transducción de Señal
15.
J Prof Nurs ; 43: 61-67, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36496246

RESUMEN

INTRODUCTION: Organizational support from executive administration can inhibit or foster success in a nursing program and impacts academic nursing administrators' effectiveness and longevity. Academic nursing administrators have expressed concerns about a lack of support and dissatisfaction with the role, therefore choosing to retire early or leave the position. PURPOSE: This study investigated academic nursing administrators' perceptions of organizational support and examined if differences existed among graduate, baccalaureate, and associate degree nursing program administrators. METHODS: A quantitative, cross-sectional survey was utilized to examine 502 academic nursing administrators' perceptions of organizational support using a 10-item instrument measuring perceived organizational support. Data were analyzed using descriptive and inferential statistics. RESULTS: Academic nursing administrators' perceived their organization to be modestly supportive with a mean of 5.2 (SD = 1.32) on a 1-7 scale (n = 502). Additionally, perceptions of organizational support did not vary by program type, suggesting academic nursing administrators had similar levels of perceived organizational support among all types of programs. CONCLUSIONS/IMPLICATIONS FOR PRACTICE: Organizational support is of paramount importance to the success, satisfaction, and longevity of academic nursing administrators. This study adds to the literature specific to perceived organizational support among academic nursing administrators and provides opportunities for future research.


Asunto(s)
Enfermeras Administradoras , Humanos , Estudios Transversales , Personal Administrativo , Organizaciones , Encuestas y Cuestionarios
16.
Int J Health Geogr ; 10: 18, 2011 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-21362176

RESUMEN

BACKGROUND: Efforts to stem the diabetes epidemic in the United States and other countries must take into account a complex array of individual, social, economic, and built environmental factors. Increasingly, scientists use information visualization tools to "make sense" of large multivariate data sets. Recently, ring map visualization has been explored as a means of depicting spatially referenced, multivariate data in a single information graphic. A ring map shows multiple attribute data sets as separate rings of information surrounding a base map of a particular geographic region of interest. In this study, ring maps were used to evaluate diabetes prevalence among adult South Carolina Medicaid recipients. In particular, county-level ring maps were used to evaluate disparities in diabetes prevalence among adult African Americans and Whites and to explore potential county-level associations between diabetes prevalence among adult African Americans and five measures of the socioeconomic and built environment--persistent poverty, unemployment, rurality, number of fast food restaurants per capita, and number of convenience stores per capita. Although Medicaid pays for the health care of approximately 15 percent of all diabetics, few studies have examined diabetes in adult Medicaid recipients at the county level. The present study thus addresses a critical information gap, while illustrating the utility of ring maps in multivariate investigations of population health and environmental context. RESULTS: Ring maps showed substantial racial disparity in diabetes prevalence among adult Medicaid recipients and suggested an association between adult African American diabetes prevalence and rurality. Rurality was significantly positively associated with diabetes prevalence among adult African American Medicaid recipients in a multivariate statistical model. CONCLUSIONS: Efforts to reduce diabetes among adult African American Medicaid recipients must extend to rural African Americans. Ring maps can be used to integrate diverse data sets, explore attribute associations, and achieve insights critical to the promotion of population health.


Asunto(s)
Negro o Afroamericano/etnología , Diabetes Mellitus/economía , Diabetes Mellitus/etnología , Ambiente , Mapas como Asunto , Población Blanca/etnología , Adolescente , Adulto , Diabetes Mellitus/etiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , South Carolina/etnología , Adulto Joven
17.
Public Health Rep ; 126 Suppl 3: 115-26, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21836744

RESUMEN

OBJECTIVES: We used existing data systems to examine sexually transmitted disease (STD) and HIV/AIDS diagnosis rates and explore potential county-level associations between HIV/AIDS diagnosis rates and socioeconomic disadvantage. METHODS: Using South Carolina county data, we constructed multivariate ring maps to spatially visualize syphilis, gonorrhea, chlamydia, and HIV/AIDS diagnosis rates; gender- and race-specific HIV/AIDS diagnosis rates; and three measures of socioeconomic disadvantage-an unemployment index, a poverty index, and the Townsend index of social deprivation. Statistical analyses were performed to quantitatively assess potential county-level associations between HIV/AIDS diagnosis rates and each of the three indexes of socioeconomic disadvantage. RESULTS: Ring maps revealed substantial spatial association in STD and HIV/AIDS diagnosis rates and highlighted large gender and racial disparities in HIV/AIDS across the state. The mean county-level HIV/AIDS diagnosis rate (per 100,000 population) was 24.2 for males vs. 11.2 for females, and 34.8 for African Americans vs. 5.2 for white people. In addition, ring map visualization suggested a county-level association between HIV/AIDS diagnosis rates and socioeconomic disadvantage. Significant positive bivariate relationships were found between HIV/AIDS rate categories and each increase in poverty index category (odds ratio [OR] = 2.03; p=0.006), as well as each increase in Townsend index of social deprivation category (OR=4.98; p<0.001). A multivariate ordered logistic regression model in which all three socioeconomic disadvantage indexes were included showed a significant positive association between HIV/AIDS and Townsend index categories (adjusted OR=6.10; p<0.001). CONCLUSIONS: Ring maps graphically depicted the spatial coincidence of STD and HIV/AIDS and revealed large gender and racial disparities in HIV/AIDS across South Carolina counties. This spatial visualization method used existing data systems to highlight the importance of social determinants of health in program planning and decision-making processes.


Asunto(s)
Infecciones por VIH/epidemiología , Enfermedades de Transmisión Sexual/epidemiología , Síndrome de Inmunodeficiencia Adquirida/diagnóstico , Síndrome de Inmunodeficiencia Adquirida/epidemiología , Negro o Afroamericano , Femenino , Infecciones por VIH/diagnóstico , Humanos , Masculino , Factores Sexuales , Enfermedades de Transmisión Sexual/diagnóstico , Factores Socioeconómicos , Sociología Médica , South Carolina
18.
Community Ment Health J ; 47(6): 628-36, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21113661

RESUMEN

Ninety seven outpatients with schizophrenia spectrum disorders (SSDs) were randomly assigned to the Walk, Address Sensations, Learn About Exercise, Cue Exercise Behavior for SSDs (WALC-S), a motivational intervention designed to increase exercise in SSDs (n = 48), or a time and attention control group (TAC, n = 49). WALC-S and TAC groups met weekly for 4 weeks before a 16 week walking program was offered to all subjects. We compared the exercise attendance, persistence and compliance of the groups during the walking program. WALC-S recipients attended more walking groups, for more weeks and walked more minutes than those receiving TAC. Percent of WALC-S or TAC groups attended was significantly correlated with overall attendance (r = 0.38, P = 0.001) and persistence (r = -.29, P = 0.01), as well as number of minutes walked. This study is among the first to examine interventions designed to enhance exercise motivation in SSDs.


Asunto(s)
Promoción de la Salud/métodos , Motivación , Esquizofrenia/rehabilitación , Psicología del Esquizofrénico , Caminata/psicología , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Sudeste de Estados Unidos
19.
J Grad Med Educ ; 13(2): 276-280, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33897962

RESUMEN

BACKGROUND: With the recent announcement that Step 1 score reporting will soon change to pass/fail, residency programs will need to reconsider their recruitment processes. OBJECTIVE: We (1) evaluated the feasibility of blinding residency programs to applicants' Step 1 scores and their number of attempts throughout the recruitment process; (2) described the selection process that resulted from the blinding; and (3) reviewed if a program's initial rank list, created before scores were known, would be changed before submission for the Match. METHODS: During the 2018-2019 and 2019-2020 recruitment seasons, all programs at a single sponsoring institution were invited to develop selection criteria in the absence of Step 1 data, and to remain blinded to this data throughout recruitment. Participating programs were surveyed to determine factors affecting feasibility and metrics used for residency selection. Once unblinded to Step 1 scores, programs had the option to change their initial rank lists. RESULTS: Of 24 residency programs, 4 participated (17%) in the first year: emergency medicine, neurology, pediatrics, and psychiatry. The second year had the same participants, with the addition of family and community medicine and radiation oncology (n = 6, 25%). Each program was able to determine mission-specific qualities in the absence of Step 1 data. In both years, one program made changes to the final rank list. CONCLUSIONS: It was feasible for programs to establish metrics for residency recruitment in the absence of Step 1 data, and most programs made no changes to final rank lists after Step 1 scores were known.


Asunto(s)
Medicina de Emergencia , Internado y Residencia , Niño , Medicina de Emergencia/educación , Estudios de Factibilidad , Humanos , Encuestas y Cuestionarios
20.
Health Place ; 67: 102439, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33212394

RESUMEN

The collaborative design of America's patient-centered medical homes places these practices at the forefront of emerging efforts to address longstanding inequities in the quality of primary care experienced among socially and economically marginalized populations. We assessed the geographic distribution of the country's medical homes and assessed whether they are appearing within communities that face greater burdens of disease and social vulnerability. We assessed overlapping spatial clusters of mental and physical health surveys; health behaviors, including alcohol-impaired driving deaths and drug overdose deaths; as well as premature mortality with clusters of medical home saturation and community socioeconomic characteristics. Overlapping spatial clusters were assessed using odds ratios and marginal effects models, producing four different scenarios of resource need and resource availability. All analyses were conducted using county-level data for the contiguous US states. Counties having lower uninsured rates and lower poverty rates were the most consistent indicators of medical home availability. Overall, the analyses indicated that medical homes are more likely to emerge within communities that have more favorable health and socioeconomic conditions to begin with. These findings suggest that intersecting the spatial footprints of medical homes in relation to health and socioeconomic data can provide crucial information for policy makers and payers invested in narrowing the gaps between clinic availability and the communities that experience the brunt of health and social inequalities.


Asunto(s)
Atención Dirigida al Paciente , Determinantes Sociales de la Salud , Humanos , Evaluación de Resultado en la Atención de Salud , Pobreza , Factores Socioeconómicos
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