Skip to content

Examination of fully automated mammographic density measures using LIBRA and breast cancer risk in a cohort of 21,000 non-Hispanic white women

Breast density is strongly associated with breast cancer risk. Fully automated quantitative density assessment methods have recently been developed that could facilitate large-scale studies, although data on associations with long-term breast cancer risk are limited. We examined LIBRA assessments and…

Read more

Evaluation of approaches to recruitment of racially and ethnically diverse breast cancer patients from an integrated health care setting for collection of observational social network data

We compared approaches to recruitment of diverse women with breast cancer in a study designed to collect complex social network data. We recruited 440 women from the Kaiser Permanente Northern California population newly diagnosed with breast cancer, either in person…

Read more

Pre-diagnosis lipid levels and mortality after obesity-related cancer diagnosis in the Women’s Health Initiative cardiovascular disease biomarker cohort

Published studies have demonstrated inconclusive relationships between serum lipid levels and mortality after cancer. The primary objective was to evaluate the relationship between fasting lipid levels and mortality after cancer. Data were obtained on baseline lipids and outcomes after cancer…

Read more

Metabolic syndrome risk components and mortality after triple-negative breast cancer diagnosis in postmenopausal women in the Women’s Health Initiative

Triple-negative breast cancer (TNBC) has a high recurrence risk and poor clinical outcomes. Associations between metabolic syndrome (MetS) risk components and mortality in postmenopausal women with TNBC were examined in the Women's Health Initiative. Five hundred forty-four postmenopausal women were…

Read more

Evaluating screening participation, follow-up and outcomes for breast, cervical and colorectal cancer in the PROSPR consortium

Cancer screening is a complex process encompassing risk assessment, the initial screening examination, diagnostic evaluation, and treatment of cancer precursors or early cancers. Metrics that enable comparisons across different screening targets are needed. We present population-based screening metrics for breast,…

Read more

MINERVA Biomarkers Substudy

We will conduct assays of a selected panel of cardiac, metabolic, and cancer biomarkers in 3,000 blood samples collected by the MINERVA (MultIethNic Study of BrEast ARterial Calcium Gradation and CardioVAscular Disease) Study and stored at the Kaiser Biobank. The…

Read more

Reproductive Factors and Mammographic Density: Associations Among 24,840 Women and Comparison of Studies Using Digitized Film-Screen Mammography and Full-Field Digital Mammography

Breast density is a modifiable factor that is strongly associated with breast cancer risk. We sought to understand the influence of newer technologies of full-field digital mammography (FFDM) on breast density research and to determine whether results are comparable across…

Read more

Association of Body Fat and Risk of Breast Cancer in Postmenopausal Women With Normal Body Mass Index: A Secondary Analysis of a Randomized Clinical Trial and Observational Study

Obesity is associated with an increased risk of breast cancer, including the estrogen receptor (ER)-positive subtype in postmenopausal women. Whether excess adiposity is associated with increased risk in women with a normal body mass index (BMI; calculated as weight in…

Read more

Reparameterization of PAM50 expression identifies novel breast tumor dimensions and leads to discovery of a genomewide significant breast cancer locus at 12q15

Background: Breast tumor subtyping has failed to provide impact in susceptibility genetics. The PAM50 assay categorizes breast tumors into: Luminal A, Luminal B, HER2-enriched and Basal-like. However, tumors are often more complex than simple categorization can describe. The identification of…

Read more

MultIethNic Study of BrEast ARterial Calcium Gradation and CardioVAscular Disease: cohort recruitment and baseline characteristics

MultIethNic Study of BrEast ARterial Calcium Gradation and CardioVAscular Disease (MINERVA) was designed to answer the question of whether a novel continuous breast arterial calcification (BAC) mass score improves cardiovascular risk stratification among asymptomatic postmenopausal women. This article describes recruitment…

Read more

Methodological considerations for disentangling a risk factor’s influence on disease incidence versus postdiagnosis survival: The example of obesity and breast and colorectal cancer mortality in the Women’s Health Initiative

Often, studies modeling an exposure's influence on time to disease-specific death from study enrollment are incorrectly interpreted as if based on time to death from disease diagnosis. We studied 151,996 postmenopausal women without breast or colorectal cancer in the Women's…

Read more

Examining racial variation in antiemetic use and post-chemotherapy health care utilization for nausea and vomiting among breast cancer patients

Racial minority cancer patients may experience underuse of antiemetic medications to prevent chemotherapy-induced nausea and vomiting (CINV). In addition to its adverse implications for quality of life, antiemetic underuse may contribute to observed disparities in acute illness during chemotherapy. To…

Read more

Investigation of Racial Disparities in Early Supportive Medication Use and End-of-Life Care Among Medicare Beneficiaries With Stage IV Breast Cancer

PURPOSE:Early supportive care may improve quality of life and end-of-life care among patients with cancer. We assessed racial disparities in early use of medications for common cancer symptoms (depression, anxiety, insomnia) and whether these potential disparities modify end-of-life care.METHODS:We used…

Read more

A prospective cohort study of early discontinuation of adjuvant chemotherapy in women with breast cancer: the breast cancer quality of care study (BQUAL)

For many women with non-metastatic breast cancer, adjuvant chemotherapy prevents recurrence and extends survival. Women who discontinue chemotherapy early may reduce those benefits, but little is known about what predicts early discontinuation. We sought to determine prospectively the rate and…

Read more

Investigating racial disparities in use of NK1 receptor antagonists to prevent chemotherapy-induced nausea and vomiting among women with breast cancer

​Chemotherapy-induced nausea and vomiting (CINV) is a major concern for cancer patients and, if uncontrolled, can seriously compromise quality of life (QOL) and other treatment outcomes. Because of the expense of antiemetic medications used to prevent CINV (particularly oral medications…

Read more

Validation of self-reported comorbidity status of breast cancer patients with medical records: the California Breast Cancer Survivorship Consortium (CBCSC)

To compare information from self-report and electronic medical records for four common comorbidities (diabetes, hypertension, myocardial infarction, and other heart diseases). We pooled data from two multiethnic studies (one case-control and one survivor cohort) enrolling 1,936 women diagnosed with breast…

Read more

Preliminary Development and Evaluation of an Algorithm to Identify Breast Cancer Chemotherapy Toxicities Using Electronic Medical Records and Administrative Data

Breast cancer chemotherapy toxicity is not well documented outside of randomized trials. We developed and conducted preliminary evaluation of an algorithm to detect grade 3 and 4 toxicities using electronic data from a large integrated managed care organization. The algorithm…

Read more

Distant Invasive Breast Cancer Recurrence Risk in Human Epidermal Growth Factor Receptor 2-Positive T1a and T1b Node-Negative Localized Breast Cancer Diagnosed From 2000 to 2006: A Cohort From an Integrated Health Care Delivery System

To determine the invasive recurrence (IR) risk among patients with small, node-negative human epidermal growth factor receptor 2 (HER2) -positive breast cancer. Among 16,975 consecutive patients with invasive breast cancer diagnosed from January 1, 2000, to December 31, 2006, in…

Read more

Better postdiagnosis diet quality is associated with reduced risk of death among postmenopausal women with invasive breast cancer in the Women’s Health Initiative

Few studies have evaluated whether adherence to dietary recommendations is associated with mortality among cancer survivors. In breast cancer survivors, we examined how postdiagnosis Healthy Eating Index (HEI)-2005 scores were associated with all-cause and cause-specific mortality. Our prospective cohort study…

Read more

A survey of breast cancer physicians regarding patient involvement in breast cancer treatment decisions

Shared breast cancer treatment decision-making between patients and physicians increases patient treatment satisfaction and compliance and is influenced by physician-related factors. Attitudes and behaviors about patient involvement in breast cancer treatment decisions and treatment-related communication were assessed by specialty among…

Read more

Interpersonal influences and attitudes about adjuvant therapy treatment decisions among non-metastatic breast cancer patients: an examination of differences by age and race/ethnicity in the BQUAL study

Patients are increasingly involved in cancer treatment decisions and yet little research has explored factors that may affect patient attitudes and beliefs about their therapeutic choices. This paper examines psychosocial factors (e.g., attitudes, social support), provider-related factors (e.g., communication, trust),…

Read more

Noninitiation of Adjuvant Chemotherapy in Women With Localized Breast Cancer: The Breast Cancer Quality of Care Study

PURPOSE: For some women, adjuvant chemotherapy for nonmetastatic breast cancer decreases recurrences and increases survival; however, patient-physician decisions regarding chemotherapy receipt can be influenced by medical and nonmedical factors. PATIENTS AND METHODS: We used a prospective cohort design and multivariate…

Read more

Atypical Femur Fractures Among Breast Cancer and Multiple Myeloma Patients Receiving Intravenous Bisphosphonate Therapy: A Case Series

PURPOSE: Atypical femur fractures represent a potential complication of chronic oral bisphosphonate therapy in women with osteoporosis, but the risk of atypical femur fractures among cancer patients receiving intravenous bisphosphonates at higher cumulative doses remains unclear. We examined femur fractures…

Read more

Non-initiation of adjuvant hormonal therapy in women with hormone receptor-positive breast cancer: The Breast Cancer Quality of Care Study (BQUAL)

Adjuvant hormonal therapy for non-metastatic hormone receptor (HR)-positive breast cancer decreases risk of breast cancer recurrence and increases survival. However, some women do not initiate this life-saving treatment. We used a prospective cohort design to investigate factors related to non-initiation…

Read more

Soy food intake after diagnosis of breast cancer and survival: an in-depth analysis of combined evidence from cohort studies of US and Chinese women

BACKGROUND: Soy isoflavones have antiestrogenic and anticancer properties but also possess estrogen-like properties, which has raised concern about soy food consumption among breast cancer survivors. OBJECTIVE: We prospectively evaluated the association between postdiagnosis soy food consumption and breast cancer outcomes…

Read more

Cost-effectiveness of lapatinib plus capecitabine in women with HER2+ metastatic breast cancer who have received prior therapy with trastuzumab.

BACKGROUND:In a phase III trial of women with HER2+ metastatic breast cancer (MBC) previously treated with trastuzumab, an anthracycline, and taxanes (EGF100151), lapatinib plus capecitabine (L+C) improved time to progression (TTP) versus capecitabine monotherapy (C-only). In a trial including HER2+…

Read more

Vegetable intake is associated with reduced breast cancer recurrence in tamoxifen users: a secondary analysis from the Women’s Healthy Eating and Living Study

The protective effect of vegetables on the risk of breast cancer recurrence is uncertain. We sought to evaluate the association between breast cancer recurrence and vegetable intake including analyses stratified on tamoxifen use. Experimental evidence of anti-carcinogenic activity of phytochemicals…

Read more

Alcohol consumption and breast cancer recurrence and survival among women with early-stage breast cancer: the life after cancer epidemiology study

PURPOSE: To examine the association of alcohol consumption after breast cancer diagnosis with recurrence and mortality among early-stage breast cancer survivors. PATIENTS AND METHODS: Patients included 1,897 LACE study participants diagnosed with early-stage breast cancer between 1997 and 2000 and…

Read more

Human epidermal growth factor receptor 2 assessment in a case-control study: comparison of fluorescence in situ hybridization and quantitative reverse transcription polymerase chain reaction performed by central laboratories

PURPOSE: The optimal method to assess human epidermal growth factor receptor 2 (HER2) status remains highly controversial. Before reporting patient HER2 results, American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guidelines mandate that laboratories demonstrate >/= 95% concordance…

Read more

Vasomotor symptoms, adoption of a low-fat dietary pattern, and risk of invasive breast cancer: a secondary analysis of the Women’s Health Initiative randomized controlled dietary modification trial

PURPOSE: To assess whether the effect of a low-fat dietary pattern on breast cancer incidence varied by report of baseline vasomotor symptoms. METHODS: Postmenopausal women age 50 to 79 years enrolled onto the Women's Health Initiative (WHI) Dietary Modification trial…

Read more

Dietary change and reduced breast cancer events among women without hot flashes after treatment of early-stage breast cancer: subgroup analysis of the Women’s Healthy Eating and Living Study

BACKGROUND: A diet high in vegetables, fruit, and fiber and low in fat decreased additional risk of secondary breast cancer events in women without hot flashes (HF-) compared with that in women with hot flashes (HF+), possibly through lowered concentrations…

Read more

Differences in reproductive risk factors for breast cancer in middle-aged women in Marin County, California and a sociodemographically similar area of Northern California

BACKGROUND: The Northern California county of Marin (MC) has historically had high breast cancer incidence rates. Because of MC's high socioeconomic status (SES) and racial homogeneity (non-Hispanic White), it has been difficult to assess whether these elevated rates result from…

Read more

Comparison of baseline dietary intake of Hispanic and matched non-Hispanic white breast cancer survivors enrolled in the Women’s Healthy Eating and Living study

OBJECTIVE: To assess the reported baseline dietary intake of Hispanic and non-Hispanic white breast cancer survivors in the Women's Healthy Eating and Living study, a randomized plant-based dietary intervention clinical trial. DESIGN: Dietary data from 4 days repeated 24-hour recalls…

Read more

Post-diagnosis statin use and breast cancer recurrence in a prospective cohort study of early stage breast cancer survivors

PURPOSE: We examined the association between post-diagnosis statin use (3-hydroxy-3-methylglutaryl-coenzyme A [HMG-CoA] inhibitors) and risk of breast cancer recurrence. MATERIALS AND METHODS: The study included 1945 early stage breast cancer survivors participating in the Life After Cancer Epidemiology (LACE) Study.…

Read more

Positive, negative, and disparate–women’s differing long-term psychosocial experiences of bilateral or contralateral prophylactic mastectomy

Because of recent studies showing strong prevention benefit and acceptable psychosocial outcomes, more women may be considering prophylactic mastectomy. A growing literature shows some positive psychosocial outcomes for women with bilateral prophylactic mastectomy, but less is known about women with…

Read more

Weight gain and recovery of pre-cancer weight after breast cancer treatments: evidence from the women’s healthy eating and living (WHEL) study

PURPOSE: To examine predictors of weight gain following breast cancer diagnosis and subsequent return to pre-cancer weight. OBJECTIVES: To determine (1) the associations of anti-neoplastic chemotherapy and/or, Tamoxifen((R)) therapy on weight change following breast cancer diagnosis, (2) whether chemotherapy modified…

Read more

Cost-effectiveness of letrozole versus tamoxifen as initial adjuvant therapy in postmenopausal women with hormone-receptor positive early breast cancer from a Canadian perspective.

BACKGROUND:In the primary core analysis of BIG 1-98, a randomized, double-blind trial comparing 5 years of initial adjuvant therapy with letrozole versus tamoxifen in postmenopausal women with hormone receptor-positive (HR+) early breast cancer, letrozole significantly improved disease-free survival by 19%…

Read more

Cost-effectiveness of letrozole versus tamoxifen as initial adjuvant therapy in hormone receptor-positive postmenopausal women with early-stage breast cancer.

BACKGROUND:In Breast International Group (BIG) 1-98, a randomized, double-blind trial comparing 5 years of initial adjuvant therapy with letrozole versus tamoxifen in postmenopausal women with hormone receptor-positive early breast cancer, letrozole significantly improved disease-free survival by 19% and reduced risk…

Read more

Increase in cruciferous vegetable intake in women previously treated for breast cancer participating in a dietary intervention trial

Consumption of cruciferous vegetables has been associated with reduced breast cancer risk mechanistically and in population-based studies, although evidence has been inconsistent. This inconsistency may be related to limitations in quantifying and qualifying cruciferous vegetable exposure using standard instruments for…

Read more

A randomized trial of the effect of a plant-based dietary pattern on additional breast cancer events and survival: the Women’s Healthy Eating and Living (WHEL) Study

The Women's Healthy Eating and Living (WHEL) Study is a multisite randomized controlled trial of the effectiveness of a high-vegetable, low-fat diet, aimed at markedly raising circulating carotenoid concentrations from food sources, in reducing additional breast cancer events and early…

Read more

Risks and benefits of estrogen plus progestin in healthy postmenopausal women: principal results From the Women’s Health Initiative randomized controlled trial

CONTEXT: Despite decades of accumulated observational evidence, the balance of risks and benefits for hormone use in healthy postmenopausal women remains uncertain. OBJECTIVE: To assess the major health benefits and risks of the most commonly used combined hormone preparation in…

Read more
Back To Top