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1.
Breast Cancer Res Treat ; 146(2): 401-9, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24939060

RESUMEN

Five-year breast cancer survivors, diagnosed after 65 years of age, may develop more incident comorbidities than similar populations free of cancer. We investigated whether older breast cancer survivors have a similar comorbidity burden 6-15 years after cancer diagnosis to matched women free of breast cancer at start of follow-up and whether incident comorbidities are associated with all-cause mortality. In this prospective cohort study, 1,361 older 5-year early-stage breast cancer survivors diagnosed between 1990 and 1994 and 1,361 age- and health system-matched women were followed for 10 years. Adjudicated medical record review captured prevalent and incident comorbidities during follow-up or until death as collected from the National Death Index. Older 5-year breast cancer survivors did not acquire incident comorbidities more often than matched women free of breast cancer in the subsequent 10 years [hazard ratio (HR) 1.0, 95 % confidence interval (95 % CI) 0.93, 1.1]. Adjusted for cohort membership, women with incident comorbidities had a higher mortality rate than those without incident comorbidities (HR 4.8, 95 % CI 4.1, 5.6). A breast cancer history continued to be a hazard for mortality 6-15 years after diagnosis (HR 1.3, 95 % CI 1.1, 1.4). We found that older breast cancer survivors who developed comorbidities had an increased all-cause mortality rate even after adjusting for age and prevalent comorbidity burden. Additionally, survivors acquire comorbidities at a rate similar to older women free of breast cancer. These results highlight the association between comorbidity burden and long-term mortality risk among older breast cancer survivors and their need for appropriate oncology and primary care follow-up.


Asunto(s)
Neoplasias de la Mama/epidemiología , Factores de Edad , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Causas de Muerte , Comorbilidad , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Mortalidad , Estadificación de Neoplasias , Prevalencia , Estudios Prospectivos , Sobrevivientes
2.
Cancer ; 119(8): 1478-85, 2013 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-23280284

RESUMEN

BACKGROUND: Of the approximately 2.4 million American women with a history of breast cancer, 43% are aged ≥ 65 years and are at risk for developing subsequent malignancies. METHODS: Women from 6 geographically diverse sites included 5-year breast cancer survivors (N = 1361) who were diagnosed between 1990 and 1994 at age ≥ 65 years with stage I or II disease and a comparison group of women without breast cancer (N = 1361). Women in the comparison group were age-matched and site-matched to breast cancer survivors on the date of breast cancer diagnosis. Follow-up began 5 years after the index date (survivor diagnosis date or comparison enrollment date) until death, disenrollment, or through 15 years after the index date. Data were collected from medical records and electronic sources (cancer registry, administrative, clinical, National Death Index). Analyses included descriptive statistics, crude incidence rates, and Cox proportional hazards regression models for estimating the risk of incident malignancy and were adjusted for death as a competing risk. RESULTS: Survivors and women in the comparison group were similar: >82% were white, 55% had a Charlson Comorbidity Index of 0, and ≥ 73% had a body mass index ≤ 30 kg/m(2) . Of all 306 women (N = 160 in the survivor group, N = 146 in the comparison group) who developed a first incident malignancy during follow-up, the mean time to malignancy was similar (4.37 ± 2.81 years vs 4.03 ± 2.76 years, respectively; P = .28), whereas unadjusted incidence rates were slightly higher in survivors (1882 vs 1620 per 100,000 person years). The adjusted hazard of developing a first incident malignancy was slightly elevated in survivors in relation to women in the comparison group, but it was not statistically significant (hazard ratio, 1.17; 95% confidence interval, 0.94-1.47). CONCLUSIONS: Older women who survived 5 years after an early stage breast cancer diagnosis were not at an elevated risk for developing subsequent incident malignancies up to 15 years after their breast cancer diagnosis.


Asunto(s)
Neoplasias de la Mama/epidemiología , Factores de Edad , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/patología , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Estudios Longitudinales , Factores de Riesgo , Sobrevivientes , Estados Unidos/epidemiología
3.
Am J Prev Med ; 43(6): 573-83, 2012 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23159252

RESUMEN

BACKGROUND: Shared decision making (SDM) is a widely recommended yet unproven strategy for increasing colorectal cancer (CRC) screening uptake. Previous trials of decision aids to increase SDM and CRC screening uptake have yielded mixed results. PURPOSE: To assess the impact of decision aid-assisted SDM on CRC screening uptake. DESIGN: RCT. SETTING/PARTICIPANTS: The study was conducted at an urban, academic safety-net hospital and community health center between 2005 and 2010. Participants were asymptomatic, average-risk patients aged 50-75 years due for CRC screening. INTERVENTION: Study participants (n=825) were randomized to one of two intervention arms (decision aid plus personalized risk assessment or decision aid alone) or control arm. The interventions took place just prior to a routine office visit with their primary care providers. MAIN OUTCOME MEASURES: The primary outcome was completion of a CRC screening test within 12 months of the study visit. Logistic regression was used to identify predictors of test completion and mediators of the intervention effect. Analysis was completed in 2011. RESULTS: Patients in the decision-aid group were more likely to complete a screening test than control patients (43.1% vs 34.8%, p=0.046) within 12 months of the study visit; conversely, test uptake for the decision aid and decision aid plus personalized risk assessment arms was similar (43.1% vs 37.1%, p=0.15). Assignment to the decision-aid arm (AOR=1.48, 95% CI=1.04, 2.10), black race (AOR=1.52, 95% CI=1.12, 2.06) and a preference for a patient-dominant decision-making approach (AOR=1.55, 95% CI=1.02, 2.35) were independent determinants of test completion. Activation of the screening discussion and enhanced screening intentions mediated the intervention effect. CONCLUSIONS: Decision aid-assisted SDM has a modest impact on CRC screening uptake. A decision aid plus personalized risk assessment tool is no more effective than a decision aid alone. TRIAL REGISTRATION: This study is registered at www.clinicaltrials.govNCT00251862.


Asunto(s)
Neoplasias Colorrectales/diagnóstico , Toma de Decisiones , Técnicas de Apoyo para la Decisión , Tamizaje Masivo/métodos , Anciano , Centros Comunitarios de Salud , Femenino , Hospitales Urbanos , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Aceptación de la Atención de Salud , Medición de Riesgo/métodos
4.
J Natl Cancer Inst ; 104(12): 931-40, 2012 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-22547340

RESUMEN

BACKGROUND: Studies of breast cancer outcomes rely on the identification of second breast cancer events (recurrences and second breast primary tumors). Cancer registries often do not capture recurrences, and chart abstraction can be infeasible or expensive. An alternative is using administrative health-care data to identify second breast cancer events; however, these algorithms must be validated against a gold standard. METHODS: We developed algorithms using data from 3152 women in an integrated health-care system who were diagnosed with stage I or II breast cancer in 1993-2006. Medical record review served as the gold standard for second breast cancer events. Administrative data used in algorithm development included procedures, diagnoses, prescription fills, and cancer registry records. We randomly divided the cohort into training and testing samples and used a classification and regression tree analysis to build algorithms for classifying women as having or not having a second breast cancer event. We created several algorithms for researchers to use based on the relative importance of sensitivity, specificity, and positive predictive value (PPV) in future studies. RESULTS: The algorithm with high specificity and PPV had 89% sensitivity (95% confidence interval [CI] = 84% to 92%), 99% specificity (95% CI = 98% to 99%), and 90% PPV (95% CI = 86% to 94%); the high-sensitivity algorithm had 96% sensitivity (95% CI = 93% to 98%), 95% specificity (95% CI = 94% to 96%), and 74% PPV (95% CI = 68% to 78%). CONCLUSIONS: Algorithms based on administrative data can identify second breast cancer events with high sensitivity, specificity, and PPV. The algorithms presented here promote efficient outcomes research, allowing researchers to prioritize sensitivity, specificity, or PPV in identifying second breast cancer events.


Asunto(s)
Algoritmos , Neoplasias de la Mama/patología , Carcinoma Ductal de Mama/patología , Neoplasias Primarias Secundarias/diagnóstico , Adulto , Anciano , Neoplasias de la Mama/epidemiología , Carcinoma Ductal de Mama/epidemiología , Prestación Integrada de Atención de Salud , Femenino , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Primarias Secundarias/epidemiología , Valor Predictivo de las Pruebas , Programa de VERF , Sensibilidad y Especificidad , Washingtón/epidemiología
5.
Support Care Cancer ; 20(7): 1579-83, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-22526150

RESUMEN

PURPOSE: Cancer survivorship presents many challenges for affected individuals and their health care providers. Reports from The Institute of Medicine document these challenges and recommend the use of survivorship treatment summaries and care plans to improve communication and coordination of care for cancer survivors. The purpose of our study was to assess current use of treatment summaries and care plans in Massachusetts and identify obstacles to greater use. METHODS: A survey was mailed to cancer specialist physicians (CSPs) and primary care physicians (PCPs) in Massachusetts. The survey asked CSPs about their preparation of treatment summaries and care plans for their cancer survivor patients and perceived barriers to the provision of these documents. PCPs were asked about receipt and utility of treatment summaries and care plans and information they would like to see in these reports. RESULTS: One hundred eight CSPs and 400 PCPs answered the survey. Fifty-six percent of CSPs reported that they, or their staff, prepared treatment summaries for their cancer survivor patients; however, only 14% reported preparing care plans. Fifty-four percent of PCPs reported ever receiving a treatment summary, but only 16% ever received a care plan. CSPs cited lack of training, reimbursement, and templates as barriers to preparing care plans. CONCLUSIONS: Interventions are needed to make treatment summaries and care plans a part of standard care for all cancer survivors. Increasing the use of treatment summaries and care plans will require specific training and reimbursement and may be facilitated by templates that capture automated data.


Asunto(s)
Neoplasias/terapia , Planificación de Atención al Paciente/estadística & datos numéricos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Femenino , Encuestas de Atención de la Salud , Humanos , Masculino , Massachusetts , Neoplasias/patología , Atención Primaria de Salud/métodos , Atención Primaria de Salud/estadística & datos numéricos , Especialización , Sobrevivientes
6.
Breast J ; 18(1): 58-64, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22098389

RESUMEN

With the increases in complexity of care for breast health concerns, there is a growing need for efficient and effective clinical evaluation, especially for vulnerable populations at risk for poor outcomes. The Breast Health Center at Boston Medical Center is a multidisciplinary program, with internists providing care alongside breast surgeons, radiologists, and patient navigators. Using a triage system previously shown to have high provider and patient satisfaction, and the ability to provide timely care, patients are assigned to either a breast surgeon or internist. From 2007 to 2009, internists cared for 2,408 women, representing half of all referrals. Women served were diverse in terms of race (33% black, 30% Hispanic, 5% Asian), language (34% require language interpreter), and insurance status (51% had no insurance or public insurance). Most presented with an abnormal screen (breast examination 54% or imaging 4%) while the remainder were seen for symptoms such as pain (26%), non-bloody nipple discharge (4%), or risk assessment (7%). A majority of final diagnoses were made through clinical evaluation alone (n = 1,760, 73%), without the need for additional diagnostic imaging or tissue sampling; 9% (n = 214) received a benign diagnosis with the aid of breast imaging; 19% (n = 463) required tissue sampling. Only 4% went on to see a breast surgeon. Internists diagnosed 15 incident cancers with a median time to diagnosis of 19 days. Patient and provider satisfaction was high. These data suggest that a group of appropriately trained internists can provide quality breast care to a vulnerable population in a multidisciplinary setting. Replication of this model requires the availability of more clinical training programs for non-surgical providers.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Servicios de Diagnóstico/organización & administración , Detección Precoz del Cáncer/métodos , Medicina Interna , Grupo de Atención al Paciente/organización & administración , Servicios de Salud para Mujeres/organización & administración , Adolescente , Adulto , Anciano , Actitud del Personal de Salud , Neoplasias de la Mama/prevención & control , Servicios de Diagnóstico/normas , Servicios de Diagnóstico/estadística & datos numéricos , Detección Precoz del Cáncer/normas , Detección Precoz del Cáncer/estadística & datos numéricos , Femenino , Humanos , Comunicación Interdisciplinaria , Medicina Interna/educación , Persona de Mediana Edad , Evaluación de Procesos y Resultados en Atención de Salud , Grupo de Atención al Paciente/normas , Satisfacción del Paciente , Triaje , Servicios de Salud para Mujeres/normas , Servicios de Salud para Mujeres/estadística & datos numéricos , Adulto Joven
7.
J Am Coll Surg ; 213(6): 757-65, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22014658

RESUMEN

BACKGROUND: The definitive local therapy options for early-stage breast cancer are mastectomy and breast-conserving surgery followed by radiation therapy. Older women and those with comorbidities frequently receive breast-conserving surgery alone. The interaction of age and comorbidity with breast cancer severity and their impact on receipt of definitive therapy have not been well-studied. STUDY DESIGN: In a cohort of 1,837 women aged 65 years and older receiving treatment for early-stage breast cancer in 6 integrated health care delivery systems in 1990-1994 and followed for 10 years, we examined predictors of receiving nondefinitive local therapy and assessed the impact on breast cancer recurrence within levels of severity, defined as level of risk for recurrence. RESULTS: Age and comorbidity were associated with receipt of nondefinitive therapy. Compared with those at low risk, women at the highest risk were less likely to receive nondefinitive therapy (odds ratio = 0.32; 95% CI, 0.22-0.47), and women at moderate risk were about half as likely (odds ratio = 0.54; 95% CI, 0.35-0.84). Nondefinitive local therapy was associated with higher rates of recurrence among women at moderate (hazard ratio = 5.1; 95% CI, 1.9-13.5) and low risk (hazard ratio = 3.2; 95% CI, 1.1-8.9). The association among women at high risk was weak (hazard ratio = 1.3; 95% CI, 0.75-2.1). CONCLUSIONS: Among these older women with early-stage breast cancer, decisions about therapy partially balanced breast cancer severity against age and comorbidity. However, even among women at low risk, omitting definitive local therapy was associated with increased recurrence.


Asunto(s)
Neoplasias de la Mama/patología , Neoplasias de la Mama/terapia , Recurrencia Local de Neoplasia/patología , Factores de Edad , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/complicaciones , Estudios de Cohortes , Femenino , Humanos , Mastectomía , Estadificación de Neoplasias , Radioterapia Adyuvante , Factores de Riesgo , Resultado del Tratamiento
8.
Prev Chronic Dis ; 7(1): A22, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-20040237

RESUMEN

Cancer survivors face numerous medical and psychosocial challenges, which the medical and public health systems are ill-equipped to deal with. In May 2008, the Massachusetts Comprehensive Cancer Control Coalition conducted a Survivorship Summit to elicit input from cancer survivors and professionals on developing system-level action plans for cancer survivorship issues. We describe how health care and public health professionals can implement similar events. Our results suggest that a cancer survivorship summit can be a valuable tool for cancer coalitions and advocacy organizations in determining survivorship agendas and action plans.


Asunto(s)
Personal de Salud/normas , Neoplasias/prevención & control , Administración en Salud Pública/normas , Humanos , Massachusetts/epidemiología , Neoplasias/epidemiología , Planificación de Atención al Paciente , Satisfacción Personal , Administración en Salud Pública/métodos , Calidad de Vida , Factores de Riesgo
9.
J Clin Epidemiol ; 63(1): 64-74, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-19457638

RESUMEN

OBJECTIVE: To evaluate the effectiveness of methods that control for confounding by indication, we compared breast cancer recurrence rates among women receiving adjuvant chemotherapy with those who did not. STUDY DESIGN AND SETTING: In a medical record review-based study of breast cancer treatment in older women (n=1798) diagnosed between 1990 and 1994, our crude analysis suggested that adjuvant chemotherapy was positively associated with recurrence (hazard ratio [HR]=2.6; 95% confidence interval [CI]=1.9, 3.5). We expected a protective effect, so postulated that the crude association was confounded by indications for chemotherapy. We attempted to adjust for this confounding by restriction, multivariable regression, propensity scores (PSs), and instrumental variable (IV) methods. RESULTS: After restricting to women at high risk for recurrence (n=946), chemotherapy was not associated with recurrence (HR=1.1; 95% CI=0.7, 1.6) using multivariable regression. PS adjustment yielded similar results (HR=1.3; 95% CI=0.8, 2.0). The IV-like method yielded a protective estimate (HR=0.9; 95% CI=0.2, 4.3); however, imbalances of measured factors across levels of the IV suggested residual confounding. CONCLUSION: Conventional methods do not control for unmeasured factors, which often remain important when addressing confounding by indication. PS and IV analysis methods can be useful under specific situations, but neither method adequately controlled confounding by indication in this study.


Asunto(s)
Sesgo , Factores de Confusión Epidemiológicos , Anciano , Antineoplásicos/efectos adversos , Antineoplásicos/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Quimioterapia Adyuvante/efectos adversos , Interpretación Estadística de Datos , Femenino , Humanos , Puntaje de Propensión , Recurrencia , Resultado del Tratamiento
10.
Cancer Epidemiol Biomarkers Prev ; 18(11): 2979-83, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19843686

RESUMEN

Little is known about the risk of recurrence >5 years after diagnosis among older breast cancer survivors. A community-based population of women >or=65 years diagnosed with early-stage breast cancer who survived disease free for 5 years was followed for 5 additional years or until a diagnosis of breast cancer recurrence, second primary, death, or loss to follow-up. These 5-year disease-free survivors (N = 1,277) had primary breast cancers that were node negative (77%) and estrogen receptor positive or unknown (86%). Five percent (n = 61) developed a recurrence between 5 and 10 years after diagnosis: 25% local, 9.8% regional, and 66% distant. Women who were node positive [hazard ratio (HR), 3.9; 95% confidence interval (95% CI), 1.5-10], had poorly differentiated tumors (HR, 2.5; 95% CI, 0.9-6.6), or who received breast conserving surgery without radiation therapy (HR, 2.4; 95% CI, 1.0-5.8) had higher recurrence rates compared with node negative, well differentiated, and receipt of mastectomy, respectively. Not receiving adjuvant tamoxifen, compared with receiving adjuvant tamoxifen, was also positively associated with late recurrence among women with estrogen receptor-positive/unknown tumors. Although relatively few women experience a late recurrence, most recurrences present as advanced disease, which is difficult to treat in older women. This study of late recurrence emphasizes that the risk, although small, is not negligible even in this group at high risk of death due to competing causes.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Recurrencia Local de Neoplasia/diagnóstico , Anciano , Antineoplásicos Hormonales/uso terapéutico , Neoplasias de la Mama/terapia , Terapia Combinada , Femenino , Humanos , Metástasis Linfática , Mastectomía , Recurrencia Local de Neoplasia/terapia , Estadificación de Neoplasias , Pronóstico , Tasa de Supervivencia , Tamoxifeno/uso terapéutico , Factores de Tiempo , Resultado del Tratamiento
11.
J Am Coll Surg ; 206(1): 66-75, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-18155570

RESUMEN

BACKGROUND: The purpose of this study was to compare the rates of all-cause and breast cancer-specific mortality after breast-conserving surgery (BCS) only, BCS plus radiation therapy (RT), mastectomy, and the receipt of adjuvant tamoxifen in a large population-based cohort of older women with early-stage disease. STUDY DESIGN: This cohort study was conducted within six US integrated health-care delivery systems. Automated administrative databases, medical records, and tumor registries were used to identify women aged 65 years or older who received BCS or mastectomy to treat stage I or II breast cancer diagnosed from January 1, 1990, through December 31, 1994. We compared cause-specific 10-year mortality rates across treatment categories by fitting Cox proportional hazards models adjusted for demographics and tumor characteristics. RESULTS: We identified 1,837 women having operations for stage I or II breast cancer. Compared with women receiving mastectomy, those receiving BCS without RT were twice as likely to die of breast cancer (adjusted hazards ratio [HR]=2.19, 95% confidence interval [CI], 1.51 to 3.18). Breast cancer mortality rates were similar between women receiving BCS plus RT and women receiving mastectomy (adjusted HR=1.08, 95% CI, 0.79 to 1.48). In the subset of 886 chemotherapy-naive women treated with tamoxifen, those treated with tamoxifen for less than 1 year had a substantially higher breast cancer mortality rate than those exposed 5 years or more (adjusted HR=6.26, 95% CI, 3.10 to 12.64). CONCLUSIONS: Our findings indicate that older women receiving BCS alone have higher rates of breast cancer death than those receiving BCS + RT or mastectomy and that the survival benefit from tamoxifen increases with increasing duration of treatment.


Asunto(s)
Antineoplásicos Hormonales/uso terapéutico , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/terapia , Mastectomía/métodos , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/patología , Femenino , Estudios de Seguimiento , Humanos , Estadificación de Neoplasias , Modelos de Riesgos Proporcionales , Radioterapia Adyuvante/métodos , Estudios Retrospectivos , Tasa de Supervivencia/tendencias , Tamoxifeno/uso terapéutico , Resultado del Tratamiento , Estados Unidos/epidemiología
12.
J Gen Intern Med ; 23(2): 158-63, 2008 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-18060463

RESUMEN

BACKGROUND: Annual surveillance mammography is recommended for follow-up of women with a history of breast cancer. We examined surveillance mammography among breast cancer survivors who were enrolled in integrated healthcare systems. METHODS: Women in this study were 65 or older when diagnosed with early stage invasive breast cancer (N = 1,762). We assessed mammography use during 4 years of follow-up, using generalized estimating equations to account for repeated measurements. RESULTS: Eighty-two percent had mammograms during the first year after treatment; the percentage declined to 68.5% in the fourth year of follow-up. Controlling for age and comorbidity, women who were at higher risk of recurrence by being diagnosed at stage II or receiving breast-conserving surgery (BCS) without radiation therapy were less likely to have yearly mammograms (compared to stage I, odds ratio [OR] for stage IIA 0.72, confidence interval [CI] 0.59, 0.87, OR for stage IIB 0.75, CI 0.57, 1.0; compared to BCS with radiation, OR 0.58, CI 0.43, 0.77). Women with visits to a breast cancer surgeon or oncologist were more likely to receive mammograms (OR for breast cancer surgeon 6.0, CI 4.9, 7.4, OR for oncologist 7.4, CI 6.1, 9.0). CONCLUSIONS: Breast cancer survivors who are at greater risk of recurrence are less likely to receive surveillance mammograms. Women without a visit to an oncologist or breast cancer surgeon during a year have particularly low rates of mammography. Improvements to surveillance care for breast cancer survivors may require active participation by primary care physicians and improvements in cancer survivorship programs by healthcare systems.


Asunto(s)
Neoplasias de la Mama/diagnóstico por imagen , Mamografía/estadística & datos numéricos , Tamizaje Masivo/estadística & datos numéricos , Recurrencia Local de Neoplasia/diagnóstico por imagen , Sobrevivientes , Anciano , Anciano de 80 o más Años , Femenino , Estudios de Seguimiento , Sistemas Prepagos de Salud , Humanos , Cooperación del Paciente , Vigilancia de Guardia
13.
J Clin Oncol ; 25(23): 3428-36, 2007 Aug 10.
Artículo en Inglés | MEDLINE | ID: mdl-17687148

RESUMEN

PURPOSE: Many studies have reported body mass index (BMI) increases the risk of breast cancer recurrence and breast cancer-specific mortality. Few studies have reported or examined whether breast cancer treatment differs by BMI. The purpose of this study was to examine the association between BMI at breast cancer diagnosis and receipt of appropriate primary tumor therapy and adjuvant therapy. METHODS: We identified 897 women age >or= 65 years diagnosed with stage I or II breast cancer from 1990 to 1999 at five health care organizations. We used medical records to confirm demographics, tumor characteristics, treatment, comorbid conditions, and to calculate BMI at diagnosis (< 25 kg/m(2), n = 328; 25 to < 30 kg/m(2), n = 305; 30 to < 35 kg/m(2), n = 188; >or= 35 kg/m(2), n = 76). We defined primary therapy based on National Guidelines as receiving breast-conserving surgery with radiation therapy and axillary node dissection, simple mastectomy with axillary node dissection, or modified radical mastectomy (73% overall); adjuvant therapy was defined as receipt of hormonal therapy, chemotherapy, or both (60% overall). RESULTS: The median BMI was 26.7 kg/m(2) (range, 14.6 to 61.2). The proportion of women receiving primary therapy and adjuvant therapy was lowest for women less than 25 kg/m(2) (69% and 56%, respectively) and greatest for obese I (78% and 64%, respectively). There were no differences in receipt of primary or adjuvant treatment across BMI in univariate or multivariable models (after adjusting for age, stage, comorbidity, diagnosis year, and hormone receptor positivity). CONCLUSION: Receipt of appropriate primary therapy and adjuvant therapy is not associated with BMI in older women with access to health care. Additional research in larger samples and more diverse settings is needed.


Asunto(s)
Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/terapia , Quimioterapia Adyuvante , Accesibilidad a los Servicios de Salud , Obesidad/complicaciones , Factores de Edad , Anciano , Anciano de 80 o más Años , Índice de Masa Corporal , Neoplasias de la Mama/mortalidad , Atención a la Salud , Femenino , Humanos , Recurrencia , Resultado del Tratamiento
14.
Am J Epidemiol ; 165(12): 1454-61, 2007 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-17406006

RESUMEN

The quality of medical record abstracts is often characterized in a reliability substudy. These results usually indicate agreement, but not the extent to which lack of agreement affects associations observed in the complete data. In this study, medical records were reviewed and abstracted for patients diagnosed with stage I or stage II breast cancer between 1990 and 1994 at one of six US Cancer Research Network sites. For a subsample, interrater reliability data were available. The authors calculated conventional hazard ratios and 95% confidence intervals for the association of demographic, tumor, and treatment characteristics with recurrence rate. These conventional estimates of effect were compared with three sets of estimates and 95% simulation intervals that took account of the uncertainty assessed by lack of agreement in the reliability substudy. The rate of recurrence was associated with increasing cancer stage and with treatment modality but not with demographic characteristics. The hazard ratios and simulation intervals that took account of the reliability data showed that the simulation interval grew wider as the sources of uncertainty taken into account grew more complete, but the associations expected a priori remained readily apparent. While many investigators use reliability data only as a metric for data quality, a more thorough approach can also quantitatively depict the uncertainty in the observed associations.


Asunto(s)
Indización y Redacción de Resúmenes , Neoplasias de la Mama/epidemiología , Interpretación Estadística de Datos , Registros Médicos , Probabilidad , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Comorbilidad , Femenino , Humanos , Mastectomía/métodos , Recurrencia Local de Neoplasia/epidemiología , Estados Unidos/epidemiología
15.
Ambul Pediatr ; 7(2): 187-91, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17368415

RESUMEN

OBJECTIVE: Pediatric clerkships can be important settings for medical students to learn how to perform smoking assessments and counseling with parents. In evaluating an educational intervention that promotes this skill, we assess whether students' self-report of this counseling skill was a valid measure of actual behavior. METHODS: A trained observer evaluated student smoking assessment and counseling practices during pediatric well-child visits at 5 clinical sites in eastern Massachusetts. The external observations of behavior were used as a gold standard, and we determined the accuracy of the students' self-report of their smoking counseling practices with families and of their preceptors' educational interventions. RESULTS: We observed 38 pediatric preceptors and 85 Boston University School of Medicine (BUSM) III students in 85 clinical encounters. Sensitivities of the students' report of assessing smoking practices and counseling parents and children ranged from 0.60-1.00, and specificities ranged from 0.41-0.88. Specifically, with regards to the students' report of performing a smoking assessment with the family, the sensitivity was 0.97 (95 per cent confidence interval, 0.89-0.99) and the specificity was 0.88 (95 per cent confidence interval, 0.72-0.97). For measures where the observer could not determine practice, agreement between the student and preceptor was between 57 per cent and 83 per cent . Specifically, with regard to whether the preceptor made expectations clear with the student, students and preceptors agreed 83% of the time. CONCLUSION: Although direct observations of behavior may still be the most accurate report of true practice, when this is not feasible, student self-report appears to be a valid measure of smoking assessment and counseling practices during pediatric clerkships.


Asunto(s)
Prácticas Clínicas , Comunicación , Consejo Dirigido , Educación de Pregrado en Medicina , Fumar , Estudiantes de Medicina , Humanos , Pediatría , Reproducibilidad de los Resultados , Autoevaluación (Psicología)
16.
Cancer ; 109(5): 966-74, 2007 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-17243096

RESUMEN

BACKGROUND: The association between common breast cancer therapies and recurrences and second primary breast cancers in older women is unclear, although older women are less likely to receive common therapies. METHODS: Women aged >or=65 years who were diagnosed with stage I or II breast cancer and who underwent mastectomy or breast-conserving surgery (BCS) from 1990 to 1994 were identified from automated data from 6 healthcare systems and then were followed for 10 years or until breast cancer recurrence, disenrollment, or death. Trained abstractors reviewed medical records to obtain recurrence, tumor, treatment and demographic data. The authors used proportional hazards models to examine predictors of recurrent and second primary breast cancers adjusted for demographic and tumor factors. RESULTS: Of 1837 eligible women, 34% were ages 65 to 69 years, 46% were ages 70 to 79 years, and 20% were aged >or=80 years. In multivariable models that used mastectomy as the reference group, BCS without radiation therapy was associated with an increased risk of any recurrent and second primary breast cancer (hazard ratio [HR], 1.6; 95% confidence interval [CI], 1.1-2.3), particularly with the subgroup of women with local and regional recurrence (HR, 3.5; 95% CI, 2.0-6.0). Tamoxifen use for <1 year versus >or=5 years exhibited a borderline association with any recurrent or second primary breast cancer (HR, 1.9; 95% CI, 0.9-4.2). CONCLUSIONS: Radiation therapy after BCS and 5 years of tamoxifen use were beneficial in reducing recurrences and second primary breast cancers in older women, regardless of their age or comorbidity burden.


Asunto(s)
Neoplasias de la Mama/terapia , Recurrencia Local de Neoplasia/epidemiología , Recurrencia Local de Neoplasia/prevención & control , Neoplasias Primarias Secundarias/epidemiología , Neoplasias Primarias Secundarias/prevención & control , Factores de Edad , Anciano , Anciano de 80 o más Años , Comorbilidad , Femenino , Humanos , Mastectomía , Mastectomía Segmentaria , Modelos de Riesgos Proporcionales , Radioterapia , Moduladores Selectivos de los Receptores de Estrógeno/uso terapéutico , Tamoxifeno/uso terapéutico
17.
Cancer Detect Prev ; 30(1): 34-7, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-16476525

RESUMEN

BACKGROUND: To explore the willingness of primary care providers (PCPs) to encourage enrollment of patients into cancer prevention trials. METHODS: A self-administered survey was mailed to a random sample of PCPs in three geographic regions. Physicians were asked questions about their knowledge and attitudes towards cancer prevention trials. We presented a clinical vignette of a woman at high risk for breast cancer and asked if they would encourage her enrollment into a breast cancer chemoprevention trial (yes/no). Each survey included one of 16 possible clinical vignettes where patient characteristics (age, race socioeconomic status, physical mobility and co-morbidity) varied dichotomously. Bivariate analyses and logistic models were used to examine the independent effects of patient and physician characteristics on physician decisions. RESULTS: Two hundred and sixty-six surveys (50% response) were analyzed. The mean age of respondents was 48; 54% were White, 35% Asian and 5% Black. By design physicians were evenly distributed by gender, specialty and geographic location. Overall, 53% would encourage enrollment into a breast cancer chemoprevention trial. Significant predictors of a recommendation to enroll were: geographic location in California or Georgia, younger vignette patient and anticipating an increase in patient trust after recommending enrollment. CONCLUSION: PCPs are less likely to encourage elderly patients to enroll into cancer chemoprevention trials. Decisions differ based on geographic location and perceived trust in the patient-provider relationship. To achieve successful enrollment, trial investigators must continue to educate PCPs and ensure a strong PCP-patient relationship is maintained.


Asunto(s)
Ensayos Clínicos como Asunto , Consejo/estadística & datos numéricos , Toma de Decisiones , Medicina Familiar y Comunitaria/estadística & datos numéricos , Neoplasias/prevención & control , Selección de Paciente , Pautas de la Práctica en Medicina/estadística & datos numéricos , Anciano , Actitud del Personal de Salud , Quimioprevención , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Neoplasias/etnología , Neoplasias/etiología , Aceptación de la Atención de Salud/psicología , Médicos de Familia
18.
Prev Med ; 41(1): 47-52, 2005 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15916992

RESUMEN

BACKGROUND: American medical schools lack significant educational programs for teaching medical students about counseling parents and children on smoking prevention and cessation. Thus, the objectives of this study were to describe medical student's self-reported behaviors in the assessment of parents and children's use of tobacco and to compare these practices with well-accepted pediatric activities: injury prevention and developmental assessment. METHODS: Third year medical students in a pediatric clerkship at Boston University, all of whom spend part of their clerkship with pediatricians in their offices, completed six weekly surveys (2001-2002) recording their clinical activities in counseling parents and children about smoking, injury prevention, and performing developmental assessments. RESULTS: Of the 150 third year students completing the pediatric orientation, 108 (72%) completed all six feedback surveys and the general cancer prevention survey. Of the 108 students, 77% completed smoking assessments with at least one family per week during their 6-week clerkship compared with performance of injury prevention (85%, P = 0.09) and developmental assessment (91%, P = 0.006). Among all smoking cessation and prevention recommendations, students were most likely to discourage parents from smoking in the house and least likely to offer tips for parents to counsel their children about smoking. All variables related to primary care pediatricians' role modeling and feedback for optimal tobacco counseling practices were significantly associated with student counseling practice. CONCLUSIONS: Third year medical students were less likely to complete smoking assessments than those for developmental assessment and injury prevention counseling. However, primary care pediatricians' strong expectations and modeling of smoking counseling were uniformly associated with improved self-perceived student performance. Future educational activities should engage the primary care pediatrician preceptors of students completing pediatric rotations.


Asunto(s)
Prácticas Clínicas , Consejo Dirigido/métodos , Rol del Médico , Prevención Primaria/educación , Prevención del Hábito de Fumar , Adulto , Niño , Preescolar , Estudios Transversales , Educación de Pregrado en Medicina/normas , Educación de Pregrado en Medicina/tendencias , Femenino , Humanos , Modelos Lineales , Masculino , Pediatría , Atención Primaria de Salud , Probabilidad , Factores de Riesgo , Facultades de Medicina , Fumar/efectos adversos , Estudiantes de Medicina , Encuestas y Cuestionarios , Estados Unidos
19.
Prev Med ; 39(4): 753-9, 2004 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15351542

RESUMEN

BACKGROUND: Instruction of physicians and other health professionals in medical nutrition sciences is among the expert recommendations to promote population health and reduce risks for cancer and other major causes of morbidity and mortality in the population. However, formal training in nutrition in United States medical schools is still lacking compared to the gains in basic and applied medical nutrition sciences. We sought to understand the awareness and current utilization of expert nutrition recommendations and practice guidelines among medical student faculty preceptors. METHODS: We surveyed the teaching faculty who precept for first-, second-, and third-year medical students in two required courses at Boston University. The instrument queried preceptor awareness and current utilization of expert nutrition recommendations, nutritional management practice guidelines, as well as faculty-student interactions regarding patient nutritional education and counseling. RESULTS: Of 187 faculty surveyed, 139 (74%) responded. Faculty reported using 2.3 expert guideline sources (N = 111; SD = 1.8; range = 0-8) but 83% had considered only one or no sources or did not remember what guidelines they had used. Eighty-four percent of preceptors expected students to routinely discuss nutritional practices with patients and/or their families; however, less than half of preceptors routinely provided feedback to students on patient nutritional education or counseling strategies. CONCLUSION: Our findings suggest gaps in faculty awareness and utilization of expert nutrition recommendations and practice guidelines relating to cancer and other chronic disease-risk reduction and population health promotion, underscoring the need for improvements in faculty and medical student training in basic and applied medical nutrition sciences.


Asunto(s)
Conductas Relacionadas con la Salud , Estudiantes de Medicina/estadística & datos numéricos , Adulto , Anciano , Concienciación , Ejercicio Físico , Femenino , Humanos , Estilo de Vida , Masculino , Persona de Mediana Edad , Fenómenos Fisiológicos de la Nutrición , Fumar , Servicios de Salud para Estudiantes , Encuestas y Cuestionarios
20.
Prev Med ; 35(1): 78-86, 2002 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-12079444

RESUMEN

BACKGROUND: Undergraduate medical education needs revision to ensure that medical students graduate with the skills necessary to assist their patients in cancer prevention and detection. We sought to implement and incorporate a cancer education curriculum into the students' core curriculum and to assess their skill levels prior to (1996), during (1997), and at the peak (1998-1999) of the incorporation of new hours. METHODS: We conducted pretest and posttest surveys of students at Boston University School of Medicine (medical student years 1-4) enrolled in each of the four study years (1996-1999). A total of 1,956 surveys (response rate, 82%) were completed. The primary outcome measure was the student's self-reported skill level (with responses ranging from 1 (very unskilled) to 5 (very skilled)) for counseling for tobacco cessation, tobacco prevention, and sun protection and for the early detection of breast, skin, and cervical cancer. Mean scores were computed for each chronological year of the study and medical school year. Differences and trends over time in mean scores of students in each medical school year were evaluated using multiple regression analysis. RESULTS: The number of hours of cancer education increased from 6 in 1996 to 15 in 1999. Strong improvements in self-rated skill levels were recorded for four of the six measures. In particular, tobacco cessation counseling skill rose from 2.16 (1996) to 3.13 (1999) for second year students (P < 0.001) and from 3.27 (1996) to 4.17 (1999) for fourth year students (P < 0.001). Among fourth year students, the percentage reporting that cancer prevention was given too little emphasis declined from 62% (1996) to 26% (1999) (P < 0.001), suggesting that the expanded curriculum reflected the students' preferences. CONCLUSIONS: Cancer education can be interwoven into the existing medical school curriculum and produce improvements in students' skill levels for counseling and examinations. Strategies to enhance prevention teaching can use this model.


Asunto(s)
Educación Basada en Competencias/estadística & datos numéricos , Educación de Pregrado en Medicina/métodos , Neoplasias/prevención & control , Adulto , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/prevención & control , Competencia Clínica/estadística & datos numéricos , Consejo/educación , Consejo/normas , Recolección de Datos , Educación de Pregrado en Medicina/normas , Femenino , Humanos , Masculino , Neoplasias/etiología , Evaluación de Resultado en la Atención de Salud/estadística & datos numéricos , Examen Físico , Fumar/efectos adversos , Prevención del Hábito de Fumar , Luz Solar/efectos adversos
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