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1.
Pediatr Crit Care Med ; 24(7): e317-e321, 2023 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-37098780

RESUMO

OBJECTIVES: Determine agreement between Pediatric Cerebral Performance Category (PCPC) scores integrated into clinical workflow and traditional investigator-assigned scores. DESIGN: Longitudinal study. SETTING: A single-center quaternary-care academic institution. SUBJECTS: Children admitted to the PICU between November 2019 and April 2020. INTERVENTIONS: Providers assigned PCPC scores as part of daily workflow. Investigators assigned scores using retrospective chart review. MEASUREMENTS AND MAIN RESULTS: Of 803 patients admitted to the PICU, 782 survived and were included. Admission and discharge scores were recorded in 95% and 90% of patients, respectively. Agreement between provider- and investigator-assigned scores was excellent, with a weighted kappa of 0.87 (95% CI, 0.84-0.90) and 0.80 (95% CI, 0.76-0.84) for admission and discharge. CONCLUSIONS: Provider-assigned PCPC scores, documented as standard of care, are largely concordant with retrospective investigator-assigned scores. Measurement of cognitive functional status can be successfully integrated into daily provider workflow for use in the clinical, quality improvement, and research arenas.


Assuntos
Estado Terminal , Hospitalização , Criança , Humanos , Lactente , Estudos Retrospectivos , Estudos Longitudinais , Estado Terminal/terapia , Alta do Paciente , Unidades de Terapia Intensiva Pediátrica
2.
J Clin Microbiol ; 60(6): e0218721, 2022 06 15.
Artigo em Inglês | MEDLINE | ID: mdl-35611653

RESUMO

Clostridioides difficile infection (CDI) is routinely diagnosed by PCR, with or without toxin enzyme immunoassay testing. The role of therapy for positive PCR and negative toxin remains unclear. The objective of this study was to determine whether clinical outcomes of PCR+/cycle threshold-based toxin (CT-toxin)- individuals vary by result reporting and treatment strategy. We performed a quasiexperimental noninferiority study comparing clinical outcomes of PCR+/CT-toxin- individuals by reporting PCR result only (most patients treated) with reporting CT-toxin result only (most patients untreated) in a single-center, tertiary academic hospital. The primary outcome was symptomatic PCR+/CT-toxin+ conversion at 8 weeks. Secondary outcomes included 7-day diarrhea resolution, hospital length of stay, and 30-day all-cause mortality. A total of 663 PCR+/CT-toxin- test results were analyzed from 632 individuals with a median age of 61 years (interquartile range [IQR], 44 to 72) and 50.4% immunocompromised. Individuals in the preintervention group were more likely to have received CDI therapy than those in the intervention group (91.5 versus 15.1%; P < 0.001). Symptomatic toxin conversion at 8 weeks and hospital length of stay failed to establish the predefined thresholds for noninferiority. Lack of diarrhea resolution at 7 days and 30-day all-cause mortality was similar and established noninferiority (20.0 versus 13.7%; adjusted odds ratio [aOR], 0.57; 90% confidence interval [CI], 0.32 to 1.01; P = 0.1; and 8.6 versus 6.5%; aOR, 0.46; 90% CI, 0.20 to 1.04; P = 0.12). These data support the safety of withholding antibiotics for selected hospitalized individuals with suspected CDI but negative toxin.


Assuntos
Toxinas Bacterianas , Clostridioides difficile , Infecções por Clostridium , Adulto , Toxinas Bacterianas/análise , Toxinas Bacterianas/genética , Clostridioides difficile/genética , Infecções por Clostridium/diagnóstico , Infecções por Clostridium/tratamento farmacológico , Diarreia/diagnóstico , Diarreia/tratamento farmacológico , Fezes/química , Humanos , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase/métodos
3.
Int J Cancer ; 148(12): 2954-2963, 2021 06 15.
Artigo em Inglês | MEDLINE | ID: mdl-33527405

RESUMO

Asian Americans (AAs) are heterogeneous, and aggregation of diverse AA populations in national reporting may mask high-risk groups. Gastrointestinal (GI) cancers constitute one-third of global cancer mortality, and an improved understanding of GI cancer mortality by disaggregated AA subgroups may inform future primary and secondary prevention strategies. Using national mortality records from the United States from 2003 to 2017, we report age-standardized mortality rates, standardized mortality ratios and annual percent change trends from GI cancers (esophageal, gastric, colorectal, liver and pancreatic) for the six largest AA subgroups (Asian Indians, Chinese, Filipinos, Japanese, Koreans and Vietnamese). Non-Hispanic Whites (NHWs) are used as the reference population. We found that mortality from GI cancers demonstrated nearly 3-fold difference between the highest (Koreans, 61 per 100 000 person-years) and lowest (Asian Indians, 21 per 100 000 person-years) subgroups. The distribution of GI cancer mortality demonstrates high variability between subgroups, with Korean Americans demonstrating high mortality from gastric cancer (16 per 100 000), and Vietnamese Americans demonstrating high mortality from liver cancer (19 per 100 000). Divergent temporal trends emerged, such as increasing liver cancer burden in Vietnamese Americans, which exacerbated existing mortality differences. There exist striking differences in the mortality burden of GI cancers by disaggregated AA subgroups. These data highlight the need for disaggregated data reporting, and the importance of race-specific and personalized strategies of screening and prevention.


Assuntos
Asiático/estatística & dados numéricos , Neoplasias Gastrointestinais/classificação , Neoplasias Gastrointestinais/mortalidade , Idoso , Idoso de 80 Anos ou mais , China/etnologia , Atestado de Óbito , Feminino , Neoplasias Gastrointestinais/etnologia , Humanos , Japão/etnologia , Masculino , Pessoa de Meia-Idade , República da Coreia/etnologia , Estados Unidos/etnologia , Vietnã/etnologia
4.
Cancer ; 127(7): 1102-1113, 2021 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-33237577

RESUMO

BACKGROUND: Estimates of overall patient health are essential to inform treatment decisions for patients diagnosed with cancer. The authors applied XWAS methods, herein referred to as "laboratory-wide association study (LWAS)", to evaluate associations between routinely collected laboratory tests and survival in veterans with prostate cancer. METHODS: The authors identified 133,878 patients who were diagnosed with prostate cancer between 2000 and 2013 in the Veterans Health Administration using any laboratory tests collected within 6 months of diagnosis (3,345,083 results). Using the LWAS framework, the false-discovery rate was used to test the association between multiple laboratory tests and survival, and these results were validated using training, testing, and validation cohorts. RESULTS: A total of 31 laboratory tests associated with survival met stringent LWAS criteria. LWAS confirmed markers of prostate cancer biology (prostate-specific antigen: hazard ratio [HR], 1.07 [95% confidence interval (95% CI), 1.06-1.08]; and alkaline phosphatase: HR, 1.22 [95% CI, 1.20-1.24]) as well laboratory tests of general health (eg, serum albumin: HR, 0.78 [95% CI, 0.76-0.80]; and creatinine: HR, 1.05 [95% CI, 1.03-1.07]) and inflammation (leukocyte count: HR, 1.23 [95% CI, 1.98-1.26]; and erythrocyte sedimentation rate: HR, 1.33 [95% CI, 1.09-1.61]). In addition, the authors derived and validated separate models for patients with localized and advanced disease, identifying 28 laboratory markers and 15 laboratory markers, respectively, in each cohort. CONCLUSIONS: The authors identified routinely collected laboratory data associated with survival for patients with prostate cancer using LWAS methodologies, including markers of prostate cancer biology, overall health, and inflammation. Broadening consideration of determinants of survival beyond those related to cancer itself could help to inform the design of clinical trials and aid in shared decision making. LAY SUMMARY: This article examined routine laboratory tests associated with survival among veterans with prostate cancer. Using laboratory-wide association studies, the authors identified 31 laboratory tests associated with survival that can be used to inform the design of clinical trials and aid patients in shared decision making.


Assuntos
Biomarcadores Tumorais/sangue , Sobreviventes de Câncer , Testes Diagnósticos de Rotina/mortalidade , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/mortalidade , Serviços de Saúde para Veteranos Militares , Idoso , Fosfatase Alcalina/sangue , Sedimentação Sanguínea , Testes de Química Clínica , Creatinina/sangue , Testes Diagnósticos de Rotina/estatística & dados numéricos , Humanos , Contagem de Leucócitos , Masculino , Peptídeo Natriurético Encefálico/sangue , Antígeno Prostático Específico/sangue , Albumina Sérica/análise , Serviços de Saúde para Veteranos Militares/estatística & dados numéricos , gama-Glutamiltransferase/sangue
5.
Clin Trials ; 18(3): 324-334, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33535821

RESUMO

BACKGROUND: Clinical trials, conducted efficiently and with the utmost integrity, are a key component in identifying effective vaccines, therapies, and other interventions urgently needed to solve the COVID-19 crisis. Yet launching and implementing trials with the rigor necessary to produce convincing results is a complicated and time-consuming process. Balancing rigor and efficiency involves relying on designs that employ flexible features to respond to a fast-changing landscape, measuring valid endpoints that result in translational actions and disseminating findings in a timely manner. We describe the challenges involved in creating infrastructure with potential utility for shared learning. METHODS: We have established a shared infrastructure that borrows strength across multiple trials. The infrastructure includes an endpoint registry to aid in selecting appropriate endpoints, a registry to facilitate establishing a Data & Safety Monitoring Board, common data collection instruments, a COVID-19 dedicated design and analysis team, and a pragmatic platform protocol, among other elements. RESULTS: The authors have relied on the shared infrastructure for six clinical trials for which they serve as the Data Coordinating Center and have a design and analysis team comprising 15 members who are dedicated to COVID-19. The authors established a pragmatic platform to simultaneously investigate multiple treatments for the outpatient with adaptive features to add or drop treatment arms. CONCLUSION: The shared infrastructure provides appealing opportunities to evaluate disease in a more robust manner with fewer resources and is especially valued during a pandemic where efficiency in time and resources is crucial. The most important element of the shared infrastructure is the pragmatic platform. While it may be the most challenging of the elements to establish, it may provide the greatest benefit to both patients and researchers.


Assuntos
COVID-19/terapia , Ensaios Clínicos como Assunto/métodos , Pandemias , Protocolos de Ensaio Clínico como Assunto , Comitês de Monitoramento de Dados de Ensaios Clínicos , Determinação de Ponto Final , Humanos , SARS-CoV-2
6.
J Clin Microbiol ; 58(9)2020 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-32434782

RESUMO

Clinical justification for rapid antimicrobial susceptibility testing (AST) in Gram-negative rod (GNR) bacteremia is compelling; however, evidence supporting its value is sparse. We investigated the impact of rapid AST on clinical and antimicrobial stewardship outcomes in real-world practice. We performed a before-and-after quasi-experimental study from February 2018 to July 2019 at a tertiary hospital of the 24-h/day, 7-day/week implementation of the direct Vitek 2 AST method from positive blood culture broth for GNR bacteremia with electronic isolate-specific de-escalation comments and daytime antibiotic stewardship program (ASP) intervention. The primary outcome was time to appropriate antibiotic escalation or de-escalation, and secondary outcomes included time to oral antibiotic stepdown, hospital length of stay (LOS), all-cause 30-day mortality, 7-day incidence of acute kidney injury (AKI), and 30-day incidence of Clostridioides difficile infection (CDI). A total of 671 GNR isolates were included from 643 adult patients. Among patients for whom antibiotic change occurred after rapid AST result, rapid AST was associated with a trend in decreased time to escalation or de-escalation (hazard ratio, 1.22; 95% confidence interval [CI], 0.99 to 1.51; P = 0.06), with median times of 52.3 versus 42.2 h. Secondary outcomes were similar in both groups and include median time to oral antibiotic stepdown, LOS, all-cause mortality, and incidence of AKI and CDI. Rapid AST led to improved stewardship measures but did not impact clinical patient outcomes. These results highlight that multiple variables in addition to the timing of the AST result contribute to clinical outcome and that further intervention may be required to clinically justify rapid AST implementation.


Assuntos
Gestão de Antimicrobianos , Bacteriemia , Infecções por Bactérias Gram-Negativas , Adulto , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Bacteriemia/diagnóstico , Bacteriemia/tratamento farmacológico , Bactérias Gram-Negativas , Infecções por Bactérias Gram-Negativas/diagnóstico , Infecções por Bactérias Gram-Negativas/tratamento farmacológico , Humanos , Tempo de Internação
7.
J Pediatr ; 217: 33-38, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31761428

RESUMO

OBJECTIVE: To evaluate the prevalence of torsades de pointes and to identify risk factors associated with QTc prolongation of ≥500 milliseconds in hospitalized pediatric oncology patients. A QTc prolongation of ≥500 milliseconds is associated with higher mortality in hospitalized adults but has not been demonstrated in pediatrics. STUDY DESIGN: A single-center, retrospective review of all hospitalized oncology patients ≤21 years of age was performed from 2014 to 2016. Patients with long/short QT syndrome or a QRS interval of ≥120 ms were excluded. Rapid response events were reviewed to determine the prevalence of torsades. In patients with ECGs for review, data were compared between patients with a QTc of <500 and ≥500 ms via logistic regression. RESULTS: There were 1934 hospitalized patients included. Rapid response events occurred in 90 patients (4.7%) with 2 torsades events (0.1%). There were 1412 electrocardiograms performed in 287 unique patients (10.6 ± 6.3 years of age; 43% female). The mean QTc was 448 ± 31 ms; 25 patients (8.7%) had ≥1 ECG with a QTc of ≥500 ms. The prevalence of torsades was greater in patients with a QTc of ≥500 ms (8% vs 0%; P<.01). In multivariate analysis, factors associated with a QTc of ≥500 ms included female sex, (OR 2.95) and ≥2 QT-prolonging medications (OR, 2.95). CONCLUSIONS: The prevalence of torsades in hospitalized pediatric oncology patients was low (0.1%), although the risk was significantly greater in patients with a QTc of ≥500 ms. Routine monitoring of electrocardiograms and electrolytes is essential in patients with risk factors predisposing to QTc prolongation.


Assuntos
Síndrome do QT Longo/complicações , Neoplasias/complicações , Torsades de Pointes/complicações , Adolescente , Criança , Pré-Escolar , Eletrocardiografia , Feminino , Hospitalização , Humanos , Síndrome do QT Longo/diagnóstico , Masculino , Oncologia , Análise Multivariada , Neoplasias/diagnóstico , Pediatria , Prevalência , Estudos Retrospectivos , Risco , Fatores de Risco , Torsades de Pointes/diagnóstico
8.
Mov Disord ; 35(11): 1905-1913, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32633860

RESUMO

BACKGROUND: Young plasma infusions have emerged as a potential treatment for neurodegenerative disease, and convalescent plasma therapy has been used safely in the management of viral pandemics. However, the effect of plasma therapy in Parkinson's disease (PD) is unknown. OBJECTIVES: The objective of this study was to determine the safety, tolerability, and feasibility of plasma infusions in people with PD. METHODS: A total of 15 people with clinically established PD, at least 1 cognitive complaint, and on stable therapy received 1 unit of young fresh frozen plasma twice a week for 4 weeks. Assessments and adverse effects were performed/reported on and off therapy at baseline, immediately after, and 4 weeks after the infusions ended. Adverse effects were also assessed during infusions. The primary outcomes were safety, tolerability, and feasibility. Exploratory outcomes included Unified Parkinson's Disease Rating Scale Part III off medication, neuropsychological battery, Parkinson's Disease Questionnaire-39, inflammatory markers (tumor necrosis factor-α, interleukin-6), uric acid, and quantitative kinematics. RESULTS: Adherence rate was 100% with no serious adverse effects. There was evidence of improvement in phonemic fluency (P = 0.002) and in the Parkinson's Disease Questionnaire-39 stigma subscore (P = 0.013) that were maintained at the delayed evaluation. Elevated baseline tumor necrosis factor-α levels decreased 4 weeks after the infusions ended. CONCLUSIONS: Young fresh frozen plasma was safe, feasible, and well tolerated in people with PD, without serious adverse effects and with preliminary evidence for improvements in phonemic fluency and stigma. The results of this study warrant further therapeutic investigations in PD and provide safety and feasibility data for plasma therapy in people with PD who may be at higher risk for severe complications of COVID-19. © 2020 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.


Assuntos
Transfusão de Componentes Sanguíneos/efeitos adversos , Doença de Parkinson/terapia , Plasma , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/sangue , Antiparkinsonianos/uso terapêutico , Fenômenos Biomecânicos , COVID-19/epidemiologia , Transtornos Cognitivos/etiologia , Transtornos Cognitivos/terapia , Terapia Combinada , Estimulação Encefálica Profunda , Estudos de Viabilidade , Feminino , Humanos , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Doença de Parkinson/sangue , Doença de Parkinson/psicologia , Risco , Índice de Gravidade de Doença , Distúrbios da Fala/etiologia , Distúrbios da Fala/terapia , Fator de Necrose Tumoral alfa/sangue
9.
Brain Inj ; 34(4): 535-547, 2020 03 20.
Artigo em Inglês | MEDLINE | ID: mdl-32064965

RESUMO

Primary Objective: Research focused on mild traumatic brain injury in active military and veteran populations details the psychological, neurological and functional outcomes of mTBI, in a primarily male (~95%) cohort. This may misrepresent female symptoms and outcomes. Here we assess for genuine sex differences in symptom presentation and functional outcomes.Research Design: We used matched pairs to preclude potential sex bias in outcome data.Methods and Procedures: We matched 49 female/male pairs on; 1) mechanism of injury, 2) time from injury to assessment and 3) age at assessment. Statistics were t-tests, chi-square, correlations and post hoc linear regression.Main outcomes and results: Outcome assessment revealed four significant (p < .05) sex differences; Living situation, Marital status, Vocation and Branch of service. Only the Neurobehavioral Symptom Inventory (NSI) composite cognitive domain factor was significantly different between females (mean: 10.26) and males (mean: 7.58). Linear regression confirmed a significant effect of sex for the cognitive composite (p = .002).Conclusion: We conclude that sex has a moderate effect on mTBI post-concussive symptom presentation. The significant sex difference in the NSI cognitive domain characterizes sex-related symptomology profiles providers can focus on for better rehabilitation management. Replication in the larger cohort would improve generalizability.Abbreviation: TBI: Traumatic Brain Injuries; mTBI: mild Traumatic Brain Injuries; OIF: Operation Iraqi Freedom; OEF: Operation Enduring Freedom; VA: Veterans Affairs Health Care System; PSC: Polytrauma System of Care; PRC: Polytrauma Rehabilitation Center; PTRP: Polytrauma Transitional Rehabilitation Program; PNS: Polytrauma Network Site; PTSD: Post Traumatic Stress Disorder; DoD: Department of Defense; NSI: Neurobehavioral Symptom Inventory; LOC: loss of consciousness; AOC: alteration of consciousness; PTA: posttraumatic amnesia; CPRS: computerized patient record system; CTBIE: Comprehensive TBI Evaluation; OCD: obsessive compulsive disorder; ETOH: alcohol abuse.


Assuntos
Lesões Encefálicas Traumáticas , Transtornos de Estresse Pós-Traumáticos , Veteranos , Campanha Afegã de 2001- , Lesões Encefálicas Traumáticas/complicações , Lesões Encefálicas Traumáticas/epidemiologia , Feminino , Humanos , Guerra do Iraque 2003-2011 , Masculino , Testes Neuropsicológicos , Projetos Piloto , Caracteres Sexuais
10.
Stat Med ; 38(17): 3204-3220, 2019 07 30.
Artigo em Inglês | MEDLINE | ID: mdl-31099433

RESUMO

The treatment of missing data in comparative effectiveness studies with right-censored outcomes and time-varying covariates is challenging because of the multilevel structure of the data. In particular, the performance of an accessible method like multiple imputation (MI) under an imputation model that ignores the multilevel structure is unknown and has not been compared to complete-case (CC) and single imputation methods that are most commonly applied in this context. Through an extensive simulation study, we compared statistical properties among CC analysis, last value carried forward, mean imputation, the use of missing indicators, and MI-based approaches with and without auxiliary variables under an extended Cox model when the interest lies in characterizing relationships between non-missing time-varying exposures and right-censored outcomes. MI demonstrated favorable properties under a moderate missing-at-random condition (absolute bias <0.1) and outperformed CC and single imputation methods, even when the MI method did not account for correlated observations in the imputation model. The performance of MI decreased with increasing complexity such as when the missing data mechanism involved the exposure of interest, but was still preferred over other methods considered and performed well in the presence of strong auxiliary variables. We recommend considering MI that ignores the multilevel structure in the imputation model when data are missing in a time-varying confounder, incorporating variables associated with missingness in the MI models as well as conducting sensitivity analyses across plausible assumptions.


Assuntos
Antirretrovirais/uso terapêutico , Doenças Cardiovasculares/induzido quimicamente , Infecções por HIV/tratamento farmacológico , Modelos Estatísticos , Adulto , Antirretrovirais/efeitos adversos , Pesquisa Comparativa da Efetividade , Simulação por Computador , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Sistema de Registros , Projetos de Pesquisa , Veteranos
11.
Ann Intern Med ; 169(12): 836-844, 2018 12 18.
Artigo em Inglês | MEDLINE | ID: mdl-30422275

RESUMO

Background: Recent data suggest that the United States is in the midst of an epidemiologic transition in the leading cause of death. Objective: To examine county-level sociodemographic differences in the transition from heart disease to cancer as the leading cause of death in the United States. Design: Observational study. Setting: U.S. death records, 2003 to 2015. Participants: Decedents aged 25 years or older, classified by racial/ethnic group. Measurements: All-cause, heart disease, and cancer mortality stratified by quintiles of county median household income. Age- and sex-adjusted mortality rates and average annual percentage of change were calculated. Results: Heart disease was the leading cause of death in 79% of counties in 2003 and 59% in 2015. Cancer was the leading cause of death in 21% of counties in 2003 and 41% in 2015. The shift to cancer as the leading cause of death was greatest in the highest-income counties. Overall, heart disease mortality rates decreased by 28% (30% in high-income counties vs. 22% in low-income counties) from 2003 to 2015, and cancer mortality rates decreased by 16% (18% in high-income counties vs. 11% in low-income counties). In the lowest-income counties, heart disease remained the leading cause of death among all racial/ethnic groups, and improvements were smaller for both heart disease and cancer. Limitation: Use of county median household income as a proxy for socioeconomic status. Conclusion: Data show that heart disease is more likely to be the leading cause of death in low-income counties. Low-income counties have not experienced the same decrease in mortality rates as high-income counties, which suggests a later transition to cancer as the leading cause of death in low-income counties. Primary Funding Source: National Institute on Minority Health and Health Disparities.


Assuntos
Status Econômico , Cardiopatias/mortalidade , Renda , Neoplasias/mortalidade , Distribuição por Idade , Causas de Morte , Etnicidade , Cardiopatias/economia , Cardiopatias/etnologia , Humanos , Neoplasias/economia , Neoplasias/etnologia , Fatores Raciais/economia , Distribuição por Sexo , Estados Unidos/epidemiologia
12.
J Am Soc Nephrol ; 29(8): 2169-2177, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29789430

RESUMO

Background Appropriate patient selection and optimal timing of dialysis initiation among older adults with advanced CKD are uncertain. We determined the association between dialysis versus medical management and survival at different ages and levels of kidney function.Methods We assembled a nationally representative 20% sample of United States veterans with eGFR<30 ml/min per 1.73 m2 between 2005 and 2010 (n=73,349), with follow-up through 2012. We used an extended Cox model to determine associations among the time-varying exposures, age (<65, 65-74, 75-84, and ≥85 years), eGFR (<6, 6-<9, 9-<12, 12-<15, and 15-<29 ml/min per 1.73 m2), and provision of dialysis, and survival.Result Over the mean±SEM follow-up of 3.4±2.2 years, 15% of patients started dialysis and 52% died. The eGFR at which dialysis, compared with medical management, associated with lower mortality varied by age (P<0.001). For patients aged <65, 65-74, 75-84, and ≥85 years, dialysis associated with lower mortality for those with eGFR not exceeding 6-<9, <6, 9-<12, and 9-<12 ml/min per 1.73 m2, respectively. Dialysis initiation at eGFR<6 ml/min per 1.73 m2 associated with a higher median life expectancy of 26, 25, and 19 months for patients aged 65, 75, and 85 years, respectively. When dialysis was initiated at eGFR 9-<12 ml/min per 1.73 m2, the estimated difference in median life expectancy was <1 year for these patients.Conclusions Provision of dialysis at higher levels of kidney function may extend survival for some older patients.


Assuntos
Causas de Morte , Sistema de Registros , Diálise Renal/métodos , Insuficiência Renal Crônica/terapia , Fatores Etários , Idoso , Estudos de Coortes , Tratamento Conservador , Feminino , Avaliação Geriátrica/métodos , Taxa de Filtração Glomerular , Humanos , Estimativa de Kaplan-Meier , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/mortalidade , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Diálise Renal/mortalidade , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/mortalidade , Estudos Retrospectivos , Medição de Risco , Índice de Gravidade de Doença , Análise de Sobrevida , Estados Unidos , Veteranos/estatística & dados numéricos
14.
Br J Cancer ; 114(3): 314-20, 2016 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-26742009

RESUMO

BACKGROUND: The relationship between statin use and non-melanoma skin cancer (NMSC) is unclear with conflicting findings in literature. Data from the Women's Health Initiative (WHI) Observational Study and WHI Clinical Trial were used to investigate the prospective relationship between statin use and NMSC in non-Hispanic white (NHW) postmenopausal women. METHODS: The WHI study enrolled women aged 50-79 years at 40 US centres. Among 133,541 NHW participants, 118,357 with no cancer history at baseline and complete medication/covariate data comprised the analytic cohort. The association of statin use (baseline, overall as a time-varying variable, duration, type, potency, lipophilicity) and NMSC incidence was determined using random-effects logistic regression models. RESULTS: Over a mean of 10.5 years of follow-up, we identified 11,555 NMSC cases. Compared with participants with no statin use, use of any statin at baseline was associated with significantly increased NMSC incidence (adjusted odds ratio (ORadj) 1.21; 95% confidence interval (CI): 1.07-1.35)). In particular, lovastatin (OR 1.52; 95% CI: 1.08-2.16), simvastatin (OR 1.38; 95% CI: 1.12-1.69), and lipophilic statins (OR 1.39; 95% CI: 1.18-1.64) were associated with higher NMSC risk. Low and high, but not medium, potency statins were associated with higher NMSC risk. No significant effect modification of the statin-NMSC relationship was found for age, BMI, smoking, solar irradiation, vitamin D use, and skin cancer history. CONCLUSIONS: Use of statins, particularly lipophilic statins, was associated with increased NMSC risk in postmenopausal white women in the WHI cohort. The lack of duration-effect relationship points to possible residual confounding. Additional prospective research should further investigate this relationship.


Assuntos
Carcinoma Basocelular/induzido quimicamente , Carcinoma de Células Escamosas/induzido quimicamente , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Neoplasias Cutâneas/induzido quimicamente , População Branca/estatística & dados numéricos , Fatores Etários , Idoso , Carcinoma Basocelular/epidemiologia , Carcinoma de Células Escamosas/epidemiologia , Estudos de Coortes , Exposição Ambiental/estatística & dados numéricos , Ácidos Graxos Monoinsaturados/efeitos adversos , Ácidos Graxos Monoinsaturados/uso terapêutico , Feminino , Fluvastatina , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Incidência , Indóis/efeitos adversos , Indóis/uso terapêutico , Modelos Logísticos , Estudos Longitudinais , Lovastatina/efeitos adversos , Lovastatina/uso terapêutico , Pessoa de Meia-Idade , Razão de Chances , Sobrepeso/epidemiologia , Estudos Prospectivos , Piridinas/efeitos adversos , Piridinas/uso terapêutico , Fatores de Risco , Sinvastatina/efeitos adversos , Sinvastatina/uso terapêutico , Neoplasias Cutâneas/epidemiologia , Fumar/epidemiologia , Luz Solar , Vitamina D/uso terapêutico , Vitaminas/uso terapêutico
15.
Cancer Causes Control ; 27(6): 817-23, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-27153844

RESUMO

BACKGROUND: Sun exposure is a major risk factor for skin cancer; however, the relative contribution of ultraviolet (UV) exposure during childhood versus adulthood on skin cancer risk remains unclear. OBJECTIVE: Our goal was to determine the impact of residential UV, measured by AVerage daily total GLObal solar radiation (AVGLO), exposure during childhood (birth, 15 years) versus adulthood (35, 50 years, and present) on incident non-melanoma skin cancer (NMSC) and malignant melanoma (MM) in postmenopausal women. METHODS: Women were followed with yearly surveys throughout the duration of their participation in the Women's Health Initiative Observational study, a multicenter study from 1993 to 2005. A total of 56,557 women had data on all observations and were included in the baseline characteristics. The main exposure, residential UV (as measured by AVGLO), was measured by geographic residence during childhood and adulthood. Outcome was risk of incident NMSC and MM. RESULTS: Over 11.9 years (median follow-up), there were 9,195 (16.3 %) cases of NMSC and 518 (0.92 %) cases of MM. Compared with the reference group (women with low childhood and low adulthood UV), women with low childhood and high adulthood UV had a 21 % increased risk of NMSC (odds ratio 1.21, 95 % confidence interval 1.12, 1.31). Women with high childhood and high adulthood UV had a 19 % increased risk of NMSC (odds ratio 1.19, 95 % confidence interval 1.11, 1.27). Surprisingly, women with high childhood UV and low adulthood UV did not have a significant increase in NMSC risk compared with the reference group (odds ratio 1.08, 95 % confidence interval 0.91, 1.28) in multivariable models. Residential UV exposure in childhood or adulthood was not associated with increased melanoma risk. CONCLUSION: This study reveals an increase in NMSC risk associated with adulthood residential UV exposure, with no effect for childhood UV exposure.


Assuntos
Carcinoma Basocelular/epidemiologia , Carcinoma de Células Escamosas/epidemiologia , Exposição Ambiental/estatística & dados numéricos , Melanoma/epidemiologia , Neoplasias Cutâneas/epidemiologia , Raios Ultravioleta , População Branca , Fatores Etários , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Razão de Chances , Pós-Menopausa , Fatores de Risco , Saúde da Mulher
16.
Am J Kidney Dis ; 67(2): 198-208, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26337132

RESUMO

BACKGROUND: Kidney disease disproportionately affects minority populations, including African Americans and Hispanics; therefore, understanding the relationship of kidney function to cardiovascular (CV) outcomes within different racial/ethnic groups is of considerable interest. We investigated the relationship between kidney function and CV events and assessed effect modification by race/ethnicity in the Women's Health Initiative. STUDY DESIGN: Prospective cohort study. SETTING & PARTICIPANTS: Baseline serum creatinine concentrations (assay traceable to isotope-dilution mass spectrometry standard) of 19,411 postmenopausal women aged 50 to 79 years who self-identified as either non-Hispanic white (n=8,921), African American (n=7,436), or Hispanic (n=3,054) were used to calculate estimated glomerular filtration rates (eGFRs). PREDICTORS: Categories of eGFR (exposure); race/ethnicity (effect modifier). OUTCOMES: The primary outcome was the composite of 3 physician-adjudicated CV events: myocardial infarction, stroke, or CV-related death. MEASUREMENTS: We evaluated the multivariable-adjusted associations between categories of eGFR and CV events using proportional hazards regression and formally tested for effect modification by race/ethnicity. RESULTS: During a mean follow-up of 7.6 years, 1,424 CV events (653 myocardial infarctions, 627 strokes, and 297 CV-related deaths) were observed. The association between eGFR and CV events was curvilinear; however, the association of eGFR with CV outcomes differed by race (P=0.006). In stratified analyses, we observed that the U-shaped association was present in non-Hispanic whites, whereas African American participants had a rather curvilinear relationship, with lower eGFR being associated with higher CV risk, and higher eGFR, with reduced CV risk. Analyses among Hispanic women were inconclusive owing to few Hispanic women having very low or high eGFRs and very few events occurring in these categories. LIMITATIONS: Lack of urinary albumin measurements; residual confounding by unmeasured or imprecisely measured characteristics. CONCLUSIONS: In postmenopausal women, the patterns of association between eGFR and CV risk differed between non-Hispanic whites and African American women.


Assuntos
Doenças Cardiovasculares/etnologia , Etnicidade/etnologia , Nefropatias/etnologia , Pós-Menopausa/etnologia , Grupos Raciais/etnologia , Saúde da Mulher , Idoso , Doenças Cardiovasculares/diagnóstico , Estudos de Coortes , Feminino , Seguimentos , Taxa de Filtração Glomerular/fisiologia , Humanos , Rim/fisiologia , Nefropatias/diagnóstico , Pessoa de Meia-Idade , Pós-Menopausa/fisiologia , Estudos Prospectivos , Fatores de Risco
18.
Prev Chronic Dis ; 11: E122, 2014 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-25032837

RESUMO

INTRODUCTION: In 2011, San Francisco passed the first citywide ordinance to improve the nutritional standards of children's meals sold at restaurants by preventing the giving away of free toys or other incentives with meals unless nutritional criteria were met. This study examined the impact of the Healthy Food Incentives Ordinance at ordinance-affected restaurants on restaurant response (eg, toy-distribution practices, change in children's menus), and the energy and nutrient content of all orders and children's-meal-only orders purchased for children aged 0 through 12 years. METHODS: Restaurant responses were examined from January 2010 through March 2012. Parent-caregiver/child dyads (n = 762) who were restaurant customers were surveyed at 2 points before and 1 seasonally matched point after ordinance enactment at Chain A and B restaurants (n = 30) in 2011 and 2012. RESULTS: Both restaurant chains responded to the ordinance by selling toys separately from children's meals, but neither changed their menus to meet ordinance-specified nutrition criteria. Among children for whom children's meals were purchased, significant decreases in kilocalories, sodium, and fat per order were likely due to changes in children's side dishes and beverages at Chain A. CONCLUSION: Although the changes at Chain A did not appear to be directly in response to the ordinance, the transition to a more healthful beverage and default side dish was consistent with the intent of the ordinance. Study results underscore the importance of policy wording, support the concept that more healthful defaults may be a powerful approach for improving dietary intake, and suggest that public policies may contribute to positive restaurant changes.


Assuntos
Serviços de Alimentação/economia , Alimentos/economia , Legislação sobre Alimentos , Jogos e Brinquedos , Restaurantes/legislação & jurisprudência , Índice de Massa Corporal , Calorimetria , Cuidadores , Criança , Fenômenos Fisiológicos da Nutrição Infantil , Pré-Escolar , Feminino , Doações , Humanos , Lactente , Recém-Nascido , Masculino , Motivação , Relações Pais-Filho , Pais , São Francisco , Inquéritos e Questionários
19.
JCO Oncol Pract ; 20(2): 203-211, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38096469

RESUMO

PURPOSE: Patients with well-differentiated, low-grade metastatic neuroendocrine neoplasms (NENs) usually have a long median survival and require complex, expensive care over many years at multidisciplinary centers. The cost burden for patients and institutions serves as a barrier to care. Understanding the drivers of these costs and whether intense monitoring adds value will help to optimize value-based care. METHODS: We adapted the cost of care per patient per day (CCPD) validated methodology to measure cost while accounting for varying follow-up duration. We queried the Stanford NEN Database, which aggregates data from the electronic health record and other electronic sources, to study patients with metastatic NENs receiving regular care at Stanford. Current Procedural Terminology codes for services incurred during the monitoring period for each patient were mapped to the corresponding cost conversion factor and date in the Medicare fee schedule. RESULTS: Two hundred two patients between 2010 and 2017 were studied with a mean CCPD of $119.11 in US dollars (USD); NEN-specific systemic therapy made up 55% of this cost. Somatostatin analogs were the costliest systemic therapy. Systemic therapy was the driver of cost differences among patients with various primary tumor types, stage of disease, tumor differentiation and grade, and functional hormone status. Patients in the most expensive CCPD group did not have a significant survival benefit (P = .66). CONCLUSION: The CCPD methodology was effective in studying cancer care value in NENs. Systemic therapy, specifically somatostatin analogs, was the primary driver of cost, and intense monitoring and higher-cost care did not improve survival outcomes.


Assuntos
Medicare , Tumores Neuroendócrinos , Estados Unidos , Humanos , Idoso , Somatostatina , Tumores Neuroendócrinos/terapia , Tumores Neuroendócrinos/patologia
20.
Nicotine Tob Res ; 15(7): 1265-72, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23239842

RESUMO

INTRODUCTION: Secondhand smoke (SHS) exposure continues to be a problem in bars and restaurants where smoking is permitted. This study measures the relative SHS exposure reduction in nonsmoking sections of establishments that allow some smoking. METHODS: Measurements were conducted simultaneously in the smoking and nonsmoking sections of 14 Minnesota hospitality venues. All of the 16 two-hr visits included photometer measurements of fine particles (PM2.5) and 12 of the visits also included measurements of 4 gas-phase tracers of SHS. RESULTS: The median ratio of nonsmoking/smoking section PM2.5 concentrations was 0.65 with an interquartile range (IQR) of 0.49-0.72. Measurements conducted after implementation of a smoking ban at 13 of the venues resulted in a smoking section PM2.5 post-ban/pre-ban ratio of 0.06 (IQR = 0.02-0.16). The median nonsmoking/smoking section ratios for gas-phase compound were 0.67 (IQR = 0.35-0.78) for pyridine, 0.52 (IQR = 0.30-0.70) for pyrrole, 0.43 (IQR = 0.35-0.84) for 3-EP, and 0.27 (IQR = 0.16-0.47) for nicotine. These results are consistent with the expectations of differential removal: the lowest ratios are for the least volatile, most strongly sorbing gases and the highest ratios for less sorbing gases and PM2.5. CONCLUSIONS: Designated nonsmoking sections in establishments that allow some smoking resulted in a median PM2.5 reduction of 35% compared with a 94% reduction after a smoking ban. The only adequate protection from cigarette smoke exposure is to eliminate smoking in indoor spaces.


Assuntos
Poluição do Ar em Ambientes Fechados/análise , Poluição por Fumaça de Tabaco/análise , Poluição por Fumaça de Tabaco/prevenção & controle , Humanos , Minnesota , Restaurantes
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