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George, Washington, United States

Albores-Saavedra J.,Instituto Nacional Of Ciencias Medicas Y Nutricion Salvador Zubiran | Schwartz A.M.,George Washington University | Henson D.E.,George Washington Cancer Institute | Kostun L.,George Washington Cancer Institute | And 3 more authors.
Annals of Diagnostic Pathology

Cutaneous angiosarcoma is an aggressive malignant mesenchymal vasoformative neoplasm that accounts for 1% of all soft tissue sarcomas. Using data from the National Cancer Institute's Surveillance, Epidemiology, and End Results program, we analyzed the demographics and survival of cutaneous angiosarcoma. The Surveillance, Epidemiology, and End Results program recorded 434 cases of cutaneous angiosarcoma from 1973 to 2007. The incidence was nearly the same in men (222 cases) and women (212 cases). Most patients were white (88%) with a mean age of 73 years. African Americans made up only 4% of the cases. Two hundred seventy (62%) cases were tumors of the head and neck, whereas 106 (24%) cases arose in the skin of the trunk. Grade was recorded in 194 cases (45%): 28 were grade I, 44 were grade II, 60 were grade III, and 62 were grade IV. Survival rates of cutaneous angiosarcoma correlated with age, anatomical site, and stage of disease. Patients younger than 50 years had a 10-year relative survival rate of 71.7%, whereas patients 50 years and older had a 36.8% 10-year survival rate. Tumors of the scalp and neck resulted in a 13.8% 10-year relative survival rate, whereas tumors arising in the trunk resulted in a 75.3% 10-year survival rate. Tumors localized to the skin had better prognosis (53.6% 10-year relative survival rate) than those with regional or distant stage (19.0% and 6.2%). Twenty-six percent of patients with angiosarcoma had a prior primary. Cutaneous angiosarcomas arise predominantly in the head and neck of white individuals older than 60 years. © 2011 Elsevier Inc. Source

Freund K.M.,Boston University | Battaglia T.A.,University of Illinois at Chicago | Calhoun E.,University of Texas Health Science Center at San Antonio | Darnell J.S.,University of Texas Health Science Center at San Antonio | And 21 more authors.
Journal of the National Cancer Institute

Background Patient navigation is a promising intervention to address cancer disparities but requires a multisite controlled trial to assess its effectiveness. Methods The Patient Navigation Research Program compared patient navigation with usual care on time to diagnosis or treatment for participants with breast, cervical, colorectal, or prostate screening abnormalities and/or cancers between 2007 and 2010. Patient navigators developed individualized strategies to address barriers to care, with the focus on preventing delays in care. To assess timeliness of diagnostic resolution, we conducted a meta-analysis of center-and cancer-specific adjusted hazard ratios (aHRs) comparing patient navigation vs usual care. To assess initiation of cancer therapy, we calculated a single aHR, pooling data across all centers and cancer types. We conducted a metaregression to evaluate variability across centers. All statistical tests were two-sided. Results The 10521 participants with abnormal screening tests and 2105 with a cancer or precancer diagnosis were predominantly from racial/ethnic minority groups (73%) and publically insured (40%) or uninsured (31%). There was no benefit during the first 90 days of care, but a benefit of navigation was seen from 91 to 365 days for both diagnostic resolution (aHR = 1.51; 95% confidence interval [CI] = 1.23 to 1.84; P <. 001)) and treatment initiation (aHR = 1.43; 95% CI = 1.10 to 1.86; P <. 007). Metaregression revealed that navigation had its greatest benefits within centers with the greatest delays in follow-up under usual care. Conclusions Patient navigation demonstrated a moderate benefit in improving timely cancer care. These results support adoption of patient navigation in settings that serve populations at risk of being lost to follow-up. © 2014 The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com. Source

Hoffman H.J.,George Washington University | Hoffman H.J.,George Washington Cancer Institute | Laverda N.L.,George Washington Cancer Institute | Levine P.H.,George Washington University | And 5 more authors.

BACKGROUND: Delays in follow-up after breast cancer screening contribute to disparities in breast cancer outcomes. The objective of this research was to determine the impact of race/ethnicity and health insurance on diagnostic time, defined as number of days from suspicious finding to diagnostic resolution. METHODS: This retrospective cohort study of 1538 women examined for breast abnormalities between 1998-2010 at 6 hospitals/clinics in the District of Columbia measured mean diagnostic times between non-Hispanic whites (NHWs), non-Hispanic blacks (NHBs), and Hispanics with private, government, or no health insurance by using a full-factorial ANOVA model. RESULTS: Respective average-geometric mean (95% CI)-diagnostic times (in days) for NHWs, NHBs, and Hispanics were 16 (12, 21), 27 (23, 33), and 51 (35, 76) among privately insured; 12 (7, 19), 39 (32, 48), and 71 (48, 105) among government insured; 45 (17, 120), 60 (39, 92), and 67 (56, 79) among uninsured. Government insured NHWs had significantly shorter diagnostic times than government insured NHBs (P =.0003) and Hispanics (P <.0001). Privately insured NHWs had significantly shorter diagnostic times than privately insured NHBs (P =.03) and Hispanics (P <.0001). Privately insured NHBs had significantly shorter diagnostic times than uninsured NHBs (P =.03). CONCLUSIONS: Insured minorities waited >2 times longer to reach their diagnostic resolution than insured NHWs. Having private health insurance increased the speed of diagnostic resolution in NHBs; however, their diagnostic time remained significantly longer than for privately insured NHWs. These results suggest diagnostic delays in minorities are more likely caused by other barriers associated with race/ethnicity than by insurance status. © 2011 American Cancer Society. Source

Hoffman H.J.,George Washington University | LaVerda N.L.,George Washington Cancer Institute | Young H.A.,George Washington University | Levine P.H.,George Washington University | And 11 more authors.
Cancer Epidemiology Biomarkers and Prevention

Background: Patient Navigation (PN) originated in Harlem as an intervention to help poor women overcome access barriers to timely breast cancer treatment. Despite rapid, nationally widespread adoption of PN, empirical evidence on its effectiveness is lacking. In 2005, National Cancer Institute initiated a multicenter PN Research Program (PNRP) to measure PN effectiveness for several cancers. The George Washington Cancer Institute, a project participant, established District of Columbia (DC)-PNRP to determine PN's ability to reduce breast cancer diagnostic time (number of days from abnormal screening to definitive diagnosis). Methods: A total of 2,601 women (1,047 navigated; 1,554 concurrent records-based nonnavigated) were examined for breast cancer from 2006 to 2010 at 9 hospitals/clinics in DC. Analyses included only women who reached complete diagnostic resolution. Differences in diagnostic time between navigation groups were tested with ANOVA models including categorical demographic and treatment variables. Log transformations normalized diagnostic time. Geometric means were estimated and compared using Tukey-Kramer P value adjustments. Results: Average - geometric mean [95% confidence interval (CI)] - diagnostic time (days) was significantly shorter for navigated, 25.1 (21.7, 29.0), than nonnavigated women, 42.1 (35.8, 49.6). Subanalyses revealed significantly shorter average diagnostic time for biopsied navigated women, 26.6 (21.8, 32.5) than biopsied nonnavigated women, 57.5 (46.3, 71.5). Amongnonbiopsied women, diagnostic time was shorter for navigated, 27.2 (22.8, 32.4), than nonnavigated women, 34.9 (29.2, 41.7), but not statistically significant. Conclusions: Navigated women, especially those requiring biopsy, reached their diagnostic resolution significantly faster than nonnavigated women. Impact: Results support previous findings of PN's positive influence on health care. PN should be a reimbursable expense to assure continuation of PN programs. ©2012 AACR. Source

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