Publications by authors named "Elena Kouri"

Background: The effect of racial residential segregation on breast cancer treatment disparities is unclear. We examined whether racial segregation is associated with adjuvant treatment receipt and patient knowledge of disease.

Patients And Methods: We surveyed a population-based sample of women in Northern California with stage I to III breast cancer diagnosed in 2010 to 2011 (participation rate = 68.

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Health care spending in the months before death varies across geographic areas but is not associated with outcomes. Using data from the prospective multiregional Cancer Care Outcomes Research and Surveillance Consortium (CanCORS) study, we assessed the extent to which such variation is explained by differences in patients' sociodemographic factors, clinical factors, and beliefs; physicians' beliefs; and the availability of services. Among 1,132 patients ages sixty-five and older who were diagnosed with lung or colorectal cancer in 2003-05, had advanced-stage cancer, died before 2013, and were enrolled in fee-for-service Medicare, mean expenditures in the last month of life were $13,663.

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Disparities in breast cancer treatment receipt are common and multifactorial. Data are limited on how knowledge about one's breast cancer and understanding treatment rationales may impact treatment completion. In this qualitative analysis, we explored barriers to care with a focus on knowledge.

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Background And Aims: Global payment and accountable care reform efforts in the United States may connect more individuals with substance use disorders (SUD) to treatment. We tested whether such changes instituted under an Alternative Quality Contract (AQC) model within the Blue Cross Blue Shield of Massachusetts' (BCBSMA) insurer increased care for individuals with SUD.

Design: Difference-in-differences design comparing enrollees in AQC organizations with a comparison group of enrollees in organizations not participating in the AQC.

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Background: Tobacco use is the leading cause of preventable death and disability. New payment and delivery system models including global payment and accountable care have the potential to increase use of cost-effective tobacco cessation services.

Objective: To examine how the Alternative Quality Contract (AQC) established in 2009 by Blue Cross Blue Shield of Massachusetts (BCBSMA) has affected tobacco cessation service use.

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Purpose: Knowledge about one's breast cancer characteristics is poor, but whether this knowledge affects treatment is uncertain. Among women with breast cancer, we examined whether tumor knowledge was associated with adjuvant treatment receipt.

Methods: We surveyed a population-based sample of women in Northern California with stage 0 to III breast cancer diagnosed during 2010 to 2011 (participation rate, 68.

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Objective: Assess the relative importance of proximity and other hospital characteristics in the choice of hospital for breast cancer surgery by race/ethnicity.

Data: SEER-Medicare data.

Study Design: Observational study of women aged >65 years receiving surgery for stage I/II/III breast cancer diagnosed in 1992-2007 in Detroit (N = 10,746 white/black), Atlanta (N = 4,018 white/black), Los Angeles (N = 9,433 white/black/Asian/Hispanic), and San Francisco (N = 4,856 white/black/Asian).

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Objective: Assess validity of the retrospective Dartmouth hospital referral region (HRR) end-of-life spending measures by comparing with health care expenditures from diagnosis to death for prospectively identified advanced lung cancer patients.

Data/setting/design: We calculated health care spending from diagnosis (2003-2005) to death or through 2011 for 885 patients aged ≥65 years with advanced lung cancer using Medicare claims. We assessed the association between Dartmouth HRR-level spending in the last 2 years of life and patient-level spending using linear regression with random HRR effects, adjusting for patient characteristics.

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Accountable care using global payment with performance bonuses has shown promise in controlling spending growth and improving care. This study examined how an early model, the Alternative Quality Contract (AQC) established in 2009 by Blue Cross Blue Shield of Massachusetts (BCBSMA), has affected care for mental illness. We compared spending and use for enrollees in AQC organizations that did and did not accept financial risk for mental health with enrollees not participating in the contract.

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Background: The reasons for increasing rates of bilateral mastectomy for unilateral breast cancer are incompletely understood, and associations of disease stage with bilateral surgery have been inconsistent. We examined associations of clinical and sociodemographic factors, including stage, with surgery type and reconstruction receipt among women with breast cancer.

Patients And Methods: We surveyed a diverse population-based sample of women from Northern California cancer registries with stage 0 to III breast cancer diagnosed during 2010-2011 (participation rate, 68.

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Importance: Racial differences in breast cancer treatment may result in part from differences in the surgeons and hospitals from whom patients receive their care. However, little is known about differences in patients' selection of surgeons and hospitals.

Objective: To examine racial/ethnic differences in how women selected their surgeons and hospitals for breast cancer surgery.

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Background: Understanding tumor characteristics is likely important, but little is known about breast cancer patients' knowledge of their own disease. The authors assessed women's knowledge about their tumor characteristics, whether racial/ethnic disparities in knowledge exist, and whether education and health literacy influence associations.

Methods: A population-based cohort of women in Northern California with stage 0 through III breast cancers diagnosed from 2010 to 2011 (participation rate 68.

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Objective: Breast cancer is a leading cause of morbidity and mortality in Mexico. We assessed the effectiveness of a train-the-trainer program in two Mexican states in improving knowledge among professional and nonprofessional community health workers.

Materials And Methods: We worked with local organizations to develop and implement a train-the-trainer program to improve breast cancer knowledge among community health workers, including professional health promoters (PHPs) who were trained and then trained nonprofessional community health promoters (CHPs).

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Background: Massachusetts law requires all residents to maintain a minimum level of health insurance, and rates of uninsurance in that state decreased from 6.4% in 2006 to 1.9% in 2010.

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Objective: Many veterans undergo cancer surgery outside of the Veterans Health Administration (VHA). We assessed to what extent these patients obtained care in the VHA before surgery.

Data Sources: VHA-Medicare data, VHA administrative data, and Veterans Affairs Central Cancer Registry data.

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Research has shown that Hispanic women in the United States are diagnosed with breast cancer at more advanced stages and initiate treatment later than non-Hispanic white women. We investigated whether stage at breast cancer diagnosis and receipt of primary therapy differ by ethnicity and birthplace among US-born Hispanic, foreign-born Hispanic, and white women. We studied 31,012 Hispanic women and 372,313 white women with a first diagnosis of invasive breast cancer during 1988 and 2005 living in a SEER area.

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Background: Prior research has documented racial disparities in patterns of care and outcomes for women with breast cancer.

Objectives: To assess whether black women receive care from lower-quality or lower-volume hospitals and if such differences explain disparities in receipt of definitive primary breast cancer therapy.

Research Design: Observational study of a population-based sample of breast cancer patients included in the SEER-Medicare database.

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The present report shows that nicotine enhances some of alcohol's positive and negative effects in women and that these effects are most pronounced during the luteal phase of the menstrual cycle. Ten low progesterone and 10 high progesterone/luteal-phase women received nicotine patch pretreatments (placebo or 21 mg) 3 hours before an alcohol challenge (0.4 g/kg).

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Despite the fact that tobacco and marihuana are often used together, relatively little is known about the effects of this combination. In order to investigate the effects of the principal psychoactive component in tobacco smoke, nicotine, on marihuana-induced intoxication, we conducted a double blind, cross-over experiment using nicotine transdermal patches. Ten male and 10 female participants received either placebo or a 21 mg transdermal nicotine patch 4 h before smoking one of two marihuana cigarettes (1.

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Nicotine and alcohol are often consumed together and smokers are more likely than non-smokers to drink alcohol. In spite of the high prevalence of the combined use of alcohol and nicotine, only a few laboratory studies have examined the effects of this drug combination in humans. The present study was conducted to further investigate the nature of nicotine/alcohol interactions by examining whether nicotine pretreatment via a transdermal patch (placebo or 21 mg) alters the subjective and physiologic effects of acute ethanol (0.

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A growing number of recent reports have demonstrated sex and menstrual cycle differences in the subjective, physiological and pharmacokinetic effects of stimulant drugs in humans. The present study was conducted to further investigate the relationship between gonadal hormones and cocaine effects by examining whether oral contraceptives (OCs) alter the acute effects of cocaine. Seven female volunteers, who were taking triphasic OCs and who were occasional users of cocaine, provided informed consent and participated in this placebo-controlled, four-visit study.

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