Racial disparities among patients with lung cancer who were recommended operative therapy.

HYPOTHESIS: Health care system and provider biases and differences in patient characteristics are thought to be prevailing factors underlying racial disparities. The influence of these factors on the receipt of care would likely be mitigated among patients who are recommended optimal therapy. We hypothesized that there would be no significant evidence of racial disparities among patients with early-stage lung cancer who are recommended surgical therapy. DESIGN, SETTING, AND PATIENTS: Retrospective cohort study of patients in the Surveillance, Epidemiology, and End Results-Medicare database who were diagnosed with stage I or II lung cancer between January 1, 1992, and December 31, 2002 (follow-up through December 31, 2005). MAIN OUTCOME MEASURES: Receipt of lung resection and overall survival. RESULTS: Among 17,739 patients who were recommended surgical therapy (mean [SD] age, 75 [5] years; 89% white, 6% black), black patients less frequently underwent resection compared with white patients (69% vs 83%, respectively; P < .001). After adjustment, black race was associated with lower odds of receiving surgical therapy (odds ratio = 0.43; 99% confidence interval, 0.36-0.52). Unadjusted 5-year survival rates were lower for black patients compared with white patients (36% vs 42%, respectively; P < .001). After adjustment, there was no significant association between race and death (hazard ratio = 1.03; 99% confidence interval, 0.92-1.14) despite a 14% difference in receipt of optimal therapy. CONCLUSIONS: Even among patients who were recommended surgical therapy, black patients underwent lung resection less often than white patients. Unexpectedly, racial differences in the receipt of optimal therapy did not appear to affect outcomes. These findings suggest that distrust, beliefs and perceptions about lung cancer and its treatment, and limited access to care (despite insurance) might have a more dominant role in perpetuating racial disparities than previously recognized

Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV

Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 2GeV/c. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B. V.Peer reviewe

Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at root(NN)-N-S=2.76 TeV

Peer reviewe

Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb-Pb collisions at root s(NN)=2.76TeV

The elliptic flow, v(2), of muons from heavy-flavour hadron decays at forward rapidity (2.5 <y <4) is measured in Pb-Pb collisions at root s(NN)= 2.76TeVwith the ALICE detector at the LHC. The scalar product, two- and four-particle Q cumulants and Lee-Yang zeros methods are used. The dependence of the v(2) of muons from heavy-flavour hadron decays on the collision centrality, in the range 0-40%, and on transverse momentum, p(T), is studied in the interval 3 <p(T)<10 GeV/c. A positive v(2) is observed with the scalar product and two-particle Q cumulants in semi-central collisions (10-20% and 20-40% centrality classes) for the p(T) interval from 3 to about 5GeV/c with a significance larger than 3 sigma, based on the combination of statistical and systematic uncertainties. The v(2) magnitude tends to decrease towards more central collisions and with increasing pT. It becomes compatible with zero in the interval 6 <p(T)<10 GeV/c. The results are compared to models describing the interaction of heavy quarks and open heavy-flavour hadrons with the high-density medium formed in high-energy heavy-ion collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.Peer reviewe

Diagnostic Imaging and Biopsy Use Among Elderly Medicare Beneficiaries With Hepatocellular Carcinoma

Understanding the factors that drive biopsy use may help improve the care of patients with hepatocellular carcinoma

Enteral Contrast in the Computed Tomography Diagnosis of Appendicitis

ObjectiveOur goal was to perform a comparative effectiveness study of intravenous (IV)-only versus IV + enteral contrast in computed tomographic (CT) scans performed for patients undergoing appendectomy across a diverse group of hospitals.BackgroundSmall randomized trials from tertiary centers suggest that enteral contrast does not improve diagnostic performance of CT for suspected appendicitis, but generalizability has not been demonstrated. Eliminating enteral contrast may improve efficiency, patient comfort, and safety.MethodsWe analyzed data for adult patients who underwent nonelective appendectomy at 56 hospitals over a 2-year period. Data were obtained directly from patient charts by trained abstractors. Multivariate logistic regression was utilized to adjust for potential confounding. The main outcome measure was concordance between final radiology interpretation and final pathology report.ResultsA total of 9047 adults underwent appendectomy and 8089 (89.4%) underwent CT, 54.1% of these with IV contrast only and 28.5% with IV + enteral contrast. Pathology findings correlated with radiographic findings in 90.0% of patients who received IV + enteral contrast and 90.4% of patients scanned with IV contrast alone. Hospitals were categorized as rural or urban and by their teaching status. Regardless of hospital type, there was no difference in concordance between IV-only and IV + enteral contrast. After adjusting for age, sex, comorbid conditions, weight, hospital type, and perforation, odds ratio of concordance for IV + enteral contrast versus IV contrast alone was 0.95 (95% CI: 0.72-1.25).ConclusionsEnteral contrast does not improve CT evaluation of appendicitis in patients undergoing appendectomy. These broadly generalizable results from a diverse group of hospitals suggest that enteral contrast can be eliminated in CT scans for suspected appendicitis