Publications by authors named "Jane C Weeks"

Purpose: Young women are at increased risk for developing more aggressive subtypes of breast cancer. Although previous studies have shown a higher risk of breast cancer recurrence and death among young women with early-stage breast cancer, they have not adequately addressed the role of tumor subtype in outcomes.

Methods: We examined data from women with newly diagnosed stage I to III breast cancer presenting to one of eight National Comprehensive Cancer Network centers between January 2000 and December 2007.

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Background: The optimal treatment for patients with brain metastases remains controversial as the use of stereotactic radiosurgery (SRS) alone, replacing whole-brain radiation therapy (WBRT), has increased. This study determined the patterns of care at multiple institutions before 2010 and examined whether or not survival was different between patients treated with SRS and patients treated with WBRT.

Methods: This study examined the overall survival of patients treated with radiation therapy for brain metastases from non-small cell lung cancer (NSCLC; initially diagnosed in 2007-2009) or breast cancer (initially diagnosed in 1997-2009) at 5 centers.

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Importance: Patients with advanced-stage cancer are receiving increasingly aggressive medical care near death, despite growing concerns that this reflects poor-quality care.

Objective: To assess the association of aggressive end-of-life care with bereaved family members' perceptions of the quality of end-of-life care and patients' goal attainment.

Design, Setting, And Participants: Interviews with 1146 family members of Medicare patients with advanced-stage lung or colorectal cancer in the Cancer Care Outcomes Research and Surveillance study (a multiregional, prospective, observational study) who died by the end of 2011 (median, 144.

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Purpose: A 2006 randomized trial demonstrated a 16-month survival benefit with intraperitoneal and intravenous (IP/IV) chemotherapy administered to patients who had ovarian cancer, compared with IV chemotherapy alone, but more treatment-related toxicities. The objective of this study was to examine the use and effectiveness of IP/IV chemotherapy in clinical practice.

Patients And Methods: Prospective cohort study of 823 women with stage III, optimally cytoreduced ovarian cancer diagnosed at six National Comprehensive Cancer Network institutions.

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Purpose: To evaluate the relationship between race/ethnicity and breast cancer-specific survival according to subtype and explore mediating factors.

Patients And Methods: Participants were women presenting with stage I to III breast cancer between January 2000 and December 2007 at National Comprehensive Cancer Network centers with survival follow-up through December 2009. Cox proportional hazards regression was used to compare breast cancer-specific survival among Asians (n = 533), Hispanics (n = 1,122), and blacks (n = 1,345) with that among whites (n = 14,268), overall and stratified by subtype (luminal A like, luminal B like, human epidermal growth factor receptor 2 type, and triple negative).

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Background: Shared decision-making is an important component of patient-centered care and is associated with improved outcomes. To the authors' knowledge, little is known concerning the extent and predictors of the involvement of a patient's family in decisions regarding cancer treatments.

Methods: The Cancer Care Outcomes Research and Surveillance (CanCORS) Consortium is a large, multiregional, prospective cohort study of the cancer care and outcomes of patients with lung and colorectal cancer.

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Background: The EQ-5D and SF-6D are 2 health-related quality-of-life indexes that provide preference-weighted measures for use in cost-effectiveness analyses.

Methods: The National Cancer Institute's Cancer Care Outcomes Research and Surveillance (CanCORS) Consortium included the EQ-5D and SF-12v2 in their survey of newly diagnosed lung cancer patients. Utilities were calculated from patient-provided scores for each domain of the EQ-5D or the SF-6D.

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Purpose: Outcomes for early-stage breast cancer have improved. First-generation adjuvant chemotherapy trials reported a 0.27% 8-year cumulative incidence of myelodysplastic syndrome/acute myelogenous leukemia.

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Purpose: The Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA) decreased fee-for-service (FFS) payments for outpatient chemotherapy. We assessed how this policy affected chemotherapy in FFS settings versus in integrated health networks (IHNs).

Patients And Methods: We examined 5,831 chemotherapy regimens for 3,613 patients from 2003 to 2006 with colorectal cancer (CRC) or lung cancers in the Cancer Care Outcomes Research Surveillance Consortium.

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Background: Invasive procedures are resource intense and may be associated with substantial morbidity. These harms must be carefully balanced with the benefits gained in life expectancy and quality of life. Prior research has demonstrated an increasing aggressiveness of care in cancer patients at the end-of-life.

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Background: Substantial shortcomings in the quality of breast cancer (BC) care have been identified. While breast cancer is responsible for the largest share of cancer care spending, little is known about the value of care provided to US women with BC.

Methods: For women aged 65 to 70 years diagnosed July 1997 through December 2005 with stage 0-III BC who were continuously enrolled in fee-for-service Medicare, we evaluated performance relative to 20 measures recommending for proven therapies and seven measures recommending against unnecessary therapies.

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Background: Breast radiation therapy (RT) is a care standard after breast-conservation surgery that improves local control and survival in women. In 2004, a phase III trial demonstrated radiation after breast-conservation surgery provided no survival and limited local control benefit to women aged 70 years and older with stage I, estrogen receptor-positive cancers who receive endocrine therapy. This led to breast-conservation surgery and endocrine therapy alone being incorporated as a category I option in the National Comprehensive Cancer Network (NCCN) Guidelines for older women in 2004.

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Background: Inflammatory breast cancer (IBC) is an uncommon clinicopathologic entity characterized by rapid progression and aggressive behavior. We used the National Comprehensive Cancer Network (NCCN) Outcomes Database to characterize recurrence patterns and outcomes.

Methods: Patients with newly diagnosed IBC treated between 1999 and 2009 at 12 NCCN institutions were identified, and baseline characteristics were obtained.

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Background: When clinical practice is governed by evidence-based guidelines and there is consensus about their validity, practice variation should be minimal. For areas in which evidence gaps exist, greater variation is expected.

Objective: To systematically assess interinstitutional variation in management decisions for 4 common types of cancer.

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Context: Relatively few data are available about symptoms among cancer patients.

Objectives: To describe the prevalence and severity of symptoms among a large, representative cohort of newly diagnosed cancer patients.

Methods: We collected survey data about symptoms (pain, fatigue, depression, nausea/vomiting, cough, dyspnea, and diarrhea) from 5422 patients with incident lung and colorectal cancer from the diverse, nationally representative Cancer Care Outcomes Research and Surveillance Consortium cohort.

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Purpose: Treatment decisions for patients with T1a,bN0M0 breast cancer are challenging. We studied the time trends in use of adjuvant chemotherapy and survival outcomes among these patients.

Patients And Methods: This was a prospective cohort study within the National Comprehensive Cancer Network Database that included 4,113 women with T1a,bN0M0 breast cancer treated between 2000 and 2009.

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Purpose: The optimal treatment strategy for ductal carcinoma in situ (DCIS) continues to evolve and should consider the consequences of initial treatment on the likelihood, type, and treatment of recurrences.

Methods: We conducted a retrospective cohort study using two data sources of patients who experienced a recurrence (DCIS or invasive cancer) following breast-conserving surgery (BCS) for index DCIS: patients with an index DCIS diagnosed from 1997 to 2008 at the academic institutions of the National Comprehensive Cancer Network (NCCN; N = 88) and patients with an index DCIS diagnosed from 1990 to 2001 at community-based integrated healthcare delivery sites of the Health Maintenance Organization Cancer Research Network (CRN) (N = 182).

Results: Just under half of local recurrences in both cohorts were invasive cancer.

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Purpose: Fee-for-service (FFS) Medicare expenditures for advanced imaging studies (defined as computed tomography [CT], magnetic resonance imaging [MRI], positron emission tomography [PET] scans, and nuclear medicine studies [NM]) rapidly increased in the past two decades for patients with cancer. Imaging rates are unknown for patients with cancer, whether under or over age 65 years, in health maintenance organizations (HMOs), where incentives may differ.

Materials And Methods: Incident cases of breast, colorectal, lung, prostate, leukemia, and non-Hodgkin lymphoma (NHL) cancers diagnosed in 2003 and 2006 from four HMOs in the Cancer Research Network were used to determine 2-year overall mean imaging counts and average total imaging costs per HMO enrollee by cancer type for those under and over age 65.

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Background: Prognosis discussion is an essential component of informed decision-making. However, many terminally ill patients have a limited awareness of their prognosis and the causes are unclear.

Objective: To explore the impact of physicians' propensity to discuss prognosis on advanced cancer patients' prognosis awareness.

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Purpose: Although predictive multiplex somatic genomic tests hold the potential to transform care by identifying targetable alterations in multiple cancer genes, little is known about how physicians will use such tests in practice.

Participants And Methods: Before the initiation of enterprise-wide multiplex testing at a major cancer center, we surveyed all clinically active adult cancer physicians to assess their current use of somatic testing, their attitudes about multiplex testing, and their genomic confidence.

Results: A total of 160 physicians participated (response rate, 61%): 57% were medical oncologists; 29%, surgeons; 14% radiation oncologists; 37%, women; and 83%, research principal investigators.

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Purpose: This study aimed to determine whether feeding back patient-reported outcomes (PROs) to providers and families of children with advanced cancer improves symptom distress and health-related quality of life (HRQoL).

Patients And Methods: This study was a parallel, multicentered pilot randomized controlled trial. At most once per week, children age ≥ 2 years old with advanced cancer or their parent completed the computer-based Pediatric Quality of Life and Evaluation of Symptoms Technology (PediQUEST) survey consisting of age- and respondent-adapted versions of the Memorial Symptom Assessment Scale (MSAS), Pediatric Quality of Life Inventory 4.

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Objectives: To determine whether the receipt of chemotherapy among terminally ill cancer patients months before death was associated with patients' subsequent intensive medical care and place of death.

Design: Secondary analysis of a prospective, multi-institution, longitudinal study of patients with advanced cancer.

Setting: Eight outpatient oncology clinics in the United States.

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Context: Clinical trials are a common therapeutic option for patients with advanced incurable cancer.

Objectives: To examine the associations between trial participation and end-of-life (EOL) outcomes, including aggressive care and quality of life (QOL).

Methods: Coping with Cancer, a multicenter prospective cohort study of patients with metastatic cancer, progressed after at least first-line chemotherapy.

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Corresponding to the increased use of mammography, the incidence of ductal carcinoma in situ (DCIS) has risen dramatically in the past 30 years. Despite its growing incidence, the treatment of DCIS remains highly variable and controversial. Although DCIS itself does not metastasize and is never lethal, it may be a precursor of invasive breast cancer and is a marker of increased breast cancer risk.

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Purpose: Only 2% to 5% of adult patients with cancer enroll onto clinical trials. We assessed simultaneously characteristics of patients and their physicians that may be independently associated with participation.

Methods: CanCORS, a National Cancer Institute (NCI) -funded population-based observational cohort study of newly diagnosed patients with lung and colorectal cancers, sampled patients across five geographic areas, five health care delivery systems, and 15 Veterans Administration hospitals.

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