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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 25 of 26 Research Studies DisplayedShah SC, McKinley M, Gupta S
Population-based analysis of differences in gastric cancer incidence among races and ethnicities in individuals age 50 years and older.
There are racial and ethnic differences in the incidence of gastric adenocarcinoma worldwide and in the US. Based on a decision analysis, screening for noncardia gastric adenocarcinoma might be cost-effective for non-White individuals 50 years or older. In this study, the investigators aimed to estimate the differences in gastric adenocarcinoma incidence in specific anatomic sites among races and ethnicities in individuals 50 years or older.
AHRQ-funded; HS026395.
Citation: Shah SC, McKinley M, Gupta S .
Population-based analysis of differences in gastric cancer incidence among races and ethnicities in individuals age 50 years and older.
Gastroenterology 2020 Nov;159(5):1705-14.e2. doi: 10.1053/j.gastro.2020.07.049..
Keywords: Elderly, Cancer, Digestive Disease and Health, Racial and Ethnic Minorities, Disparities
Longacre CF, Neprash HT, Shippee ND
Evaluating travel distance to radiation facilities among rural and urban breast cancer patients in the Medicare population.
This study characterizes the actual distance older breast cancer patients traveled to radiation treatment and the minimum distance necessary to reach radiation care, and examines whether any patient demographic or clinical factors are associated with greater travel distance. Findings showed that patients living in rural areas traveled on average nearly 3 times as far as those from urban areas, and their nearest facility was more than 4 times farther away. Older age, being single or widowed, and lower household income were significantly associated with shorter actual travel distance, while increasing rurality was significantly associated with greater actual and minimum travel distance to radiation treatment.
AHRQ-funded; HS026660.
Citation: Longacre CF, Neprash HT, Shippee ND .
Evaluating travel distance to radiation facilities among rural and urban breast cancer patients in the Medicare population.
J Rural Health 2020 Jun;36(3):334-46. doi: 10.1111/jrh.12413..
Keywords: Rural Health, Cancer: Breast Cancer, Cancer, Elderly, Women, Access to Care, Disparities
Garcia-Albeniz X, Hernan MA, Logan RW
Continuation of annual screening mammography and breast cancer mortality in women older than 70 years.
This study examined whether discontinuing annual mammography screening in women older than 70 years results in an increased 8-year breast cancer mortality. The researchers used data from the Medicare program and looked at over 1 million beneficiaries aged 70 to 84 who had no previous breast cancer diagnosis, and who underwent screening mammography from 2000 to 20008. The 8-year risk difference for women aged 70 to 74 years was -1.0 death per 1000 women and for women aged 75 to 84 years it was 0.07. Neither of these show substantial reductions in 8-year breast cancer mortality compared with stopping screening.
AHRQ-funded; HS023128.
Citation: Garcia-Albeniz X, Hernan MA, Logan RW .
Continuation of annual screening mammography and breast cancer mortality in women older than 70 years.
Ann Intern Med 2020 Mar 17;172(6):381-89. doi: 10.7326/m18-1199..
Keywords: Cancer: Breast Cancer, Cancer, Screening, Prevention, Women, Elderly, Mortality
Davis SN, Wischhusen JW, Sutton SK
Demographic and psychosocial factors associated with limited health literacy in a community-based sample of older Black Americans.
This study examined the frequency of limited health literacy and demographic and psychosocial factors associated with limited health literacy in a sample of older black Americans. The participants enrolled in a community-based intervention to promote colorectal cancer screening and completed baseline surveys that assessed their health literacy using the Rapid Estimate of Adult Literacy in Medicine, Revised (REALM-R) test, CRC awareness, cancer fatalism, Preventive Health Model (PHM) constructs, and demographics. Findings showed that limited health literacy was associated with multiple complex factors. Recommendations include interventions to incorporate patient health literacy and low-literacy materials that can be delivered through multiple channels.
AHRQ-funded; HS026120.
Citation: Davis SN, Wischhusen JW, Sutton SK .
Demographic and psychosocial factors associated with limited health literacy in a community-based sample of older Black Americans.
Patient Educ Couns 2020 Feb;103(2):385-91. doi: 10.1016/j.pec.2019.08.026..
Keywords: Health Literacy, Racial and Ethnic Minorities, Elderly, Screening, Cancer: Colorectal Cancer, Cancer, Prevention
Killelea BK, Evans SB, Mougalian SS
Association between perceived benefits and receipt of radiotherapy among older breast cancer patients.
This study examined perceptions of older women with stage I estrogen-receptor-positive breast cancer who underwent lumpectomy and were considering or receiving radiotherapy. Perceptions among 63 older women was that radiotherapy would reduce their 10-year-risk of local recurrent by an average of 18.7% although the literature showed only an 8% risk reduction. Participants who had the perception of a larger benefit were more likely to receive radiotherapy treatment.
AHRQ-funded; HS023900.
Citation: Killelea BK, Evans SB, Mougalian SS .
Association between perceived benefits and receipt of radiotherapy among older breast cancer patients.
Breast J 2020 Feb;26(2):231-34. doi: 10.1111/tbj.13518..
Keywords: Elderly, Cancer: Breast Cancer, Cancer, Women, Patient-Centered Outcomes Research, Decision Making
Fiala MA, Gettinger T, Wallace CL
Cost differential associated with hospice use among older patients with multiple myeloma.
Hospice is an effective end-of-life care approach for patients with incurable illnesses such as multiple myeloma; however, it has been historically underutilized. In addition to improving quality of life, hospice enrollment reduces healthcare spending in many incurable illnesses but this has been unstudied in the myeloma population to date. This study examined the cost differential associated with hospice use among older patients with multiple myeloma.
AHRQ-funded; R24 HS019455.
Citation: Fiala MA, Gettinger T, Wallace CL .
Cost differential associated with hospice use among older patients with multiple myeloma.
J Geriatr Oncol 2020 Jan;11(1):88-92. doi: 10.1016/j.jgo.2019.06.010..
Keywords: Elderly, Palliative Care, Cancer, Healthcare Costs
De Roo AC, Li Y, Abrahamse PH
Long-term functional decline after high-risk elective colorectal surgery in older adults.
This study examined the long-term risks of functional decline after elective colorectal surgery in older adults. This retrospective matched cohort study used data from the Health and Retirement Study, a nationally representative, longitudinal survey of adults >50 years of age. This survey collected data on functional status, cognition, and demographics, among other topics. The survey was linked with Medicare claims and National Death Index data from 1992 to 2012 and used patients 65 years and older. Surgery patients did experience a greater likelihood of functional decline with or without complications compared to control subjects. The older the patient, the more likelihood of a functional decline occurring after surgery.
AHRQ-funded; HS000053.
Citation: De Roo AC, Li Y, Abrahamse PH .
Long-term functional decline after high-risk elective colorectal surgery in older adults.
Dis Colon Rectum 2020 Jan;63(1):75-83. doi: 10.1097/dcr.0000000000001541..
Keywords: Elderly, Cancer: Colorectal Cancer, Cancer, Surgery, Adverse Events, Risk
Kenzik KM, Mehta A, Richman JS
Congestive heart failure in older adults diagnosed with follicular lymphoma: a population-based study.
This population-based study examined congestive heart failure in older adults diagnosed with follicular lymphoma. The investigators concluded that patients with follicular lymphoma who were exposed to anthracyclines between the ages of 66 years and 75 years were found to be at an increased risk of new-onset CHF; preexisting hypertension and diabetes appeared to increase this risk.
AHRQ-funded; HS023009.
Citation: Kenzik KM, Mehta A, Richman JS .
Congestive heart failure in older adults diagnosed with follicular lymphoma: a population-based study.
Cancer 2018 Nov 1;124(21):4221-30. doi: 10.1002/cncr.31695..
Keywords: Cancer, Elderly, Heart Disease and Health
Mian HS, Wildes TM, Fiala MA
Development of a Medicare health outcomes survey deficit-accumulation frailty index and its application to older patients with newly diagnosed multiple myeloma.
JCO Clinical Cancer Informatics 2018; 2):1-13. doi: 10.1200/cci.18.00043.
This study’s objective was to develop a frailty index for older patients and apply it to a subset of patients newly diagnosed with multiple myeloma. The study used the Rockwood Accumulation of Deficits approach for the Medicare Health Outcomes Study (MHOS). Data from over 2 million patients without cancer older than 66 years of age from SEER-MHOS linked databases were compared to the cohort with multiple myeloma. It was found that among patients without cancer, each 10% increase in the frailty index was associated with a 40% increased risk of death. For the multiple myeloma cohort, each 10% increase in the frailty index was associated with a 16% increased risk for death. Median time for overall survival was only 26.8 months for patients considered frail, compared with 43.7 months for those who were not. This frailty index could be used a predictor of overall survival in older multiple myeloma patients.
This study’s objective was to develop a frailty index for older patients and apply it to a subset of patients newly diagnosed with multiple myeloma. The study used the Rockwood Accumulation of Deficits approach for the Medicare Health Outcomes Study (MHOS). Data from over 2 million patients without cancer older than 66 years of age from SEER-MHOS linked databases were compared to the cohort with multiple myeloma. It was found that among patients without cancer, each 10% increase in the frailty index was associated with a 40% increased risk of death. For the multiple myeloma cohort, each 10% increase in the frailty index was associated with a 16% increased risk for death. Median time for overall survival was only 26.8 months for patients considered frail, compared with 43.7 months for those who were not. This frailty index could be used a predictor of overall survival in older multiple myeloma patients.
AHRQ-funded; HS019455.
Citation: Mian HS, Wildes TM, Fiala MA .
Development of a Medicare health outcomes survey deficit-accumulation frailty index and its application to older patients with newly diagnosed multiple myeloma.
JCO Clin Cancer Inform 2018;2. doi: 10.1200/cci.18.00043..
Keywords: Cancer, Diagnostic Safety and Quality, Elderly, Health Status, Medicare
Lewis CL, Kistler CE, Dalton AF
A decision aid to promote appropriate colorectal cancer screening among older adults: a randomized controlled trial.
The purpose of this study was to test a patient decision aid (PtDA) to promote CRC screening in older adults. The PtDA was designed to facilitate individual decision-making to help patients understand the potential risks and benefit of CRC screening. 424 patients aged 70 – 84 who were not up to date with CRC screening participated in a double-blinded randomized controlled trial, using the PtDA or an attention control. Two outcomes - appropriate CRC screening behavior at 6 months following the initial visit or appropriate screening intent immediately after the visit - were defined as completed screening or intent for patients in good health, discussion about screening with their provider for patients in intermediate health, or no screening or intent for patients in poor health. Appropriate screening behavior at 6 months was higher in the intervention group; appropriate screening intent following the provider visit was also higher. The authors conclude that the PtDA for older adults promoted appropriate CRC screening behavior.
AHRQ-funded; HS021133.
Citation: Lewis CL, Kistler CE, Dalton AF .
A decision aid to promote appropriate colorectal cancer screening among older adults: a randomized controlled trial.
Med Decis Making 2018 Jul;38(5):614-24. doi: 10.1177/0272989x18773713..
Keywords: Cancer, Cancer: Colorectal Cancer, Decision Making, Education: Patient and Caregiver, Elderly, Prevention, Screening
Pappadis MR, Volk RJ, Krishnan S
Perceptions of overdetection of breast cancer among women 70 years of age and older in the USA: a mixed-methods analysis.
The authors explored older women's perceptions about the concept of overdetection of breast cancer and its influence on future screening intentions. Semistructured interviews were conducted with 59 English-speaking women aged 70 years or older with no prior history of breast cancer. The authors found that many older women did not understand the concept of overdetection, in addition to being suspicious of or resistant to the concept. Providing older women with descriptions of overdetection may not be sufficient to influence screening intentions.
AHRQ-funded; HS022134.
Citation: Pappadis MR, Volk RJ, Krishnan S .
Perceptions of overdetection of breast cancer among women 70 years of age and older in the USA: a mixed-methods analysis.
BMJ Open 2018 Jun 14;8(6):e022138. doi: 10.1136/bmjopen-2018-022138..
Keywords: Cancer: Breast Cancer, Cancer, Elderly, Screening, Decision Making, Women, Prevention, Imaging
Mehta HB, Sura SD, Adhikari D
Adapting the Elixhauser comorbidity index for cancer patients.
This study was designed to adapt the Elixhauser comorbidity index for 4 cancer-specific populations and compare 3 versions of the Elixhauser comorbidity score with 3 versions of the Charlson comorbidity score for predicting 2-year survival with 4 types of cancer. Using data from the Texas Cancer Registry-linked Medicare data from 2005 to 2011, the researchers found that cancer-specific Elixhauser comorbidity scores performed slightly better than cancer-specific Charlson comorbidity scores. Individual Elixhauser comorbidities performed best.
AHRQ-funded; HS022134.
Citation: Mehta HB, Sura SD, Adhikari D .
Adapting the Elixhauser comorbidity index for cancer patients.
Cancer 2018 May 1;124(9):2018-25. doi: 10.1002/cncr.31269.
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Keywords: Cancer, Elderly, Medicare, Patient-Centered Outcomes Research, Registries
Olszewski AJ, Zullo AR, Nering CR
Use of charity financial assistance for novel oral anticancer agents.
Novel oral targeted drugs are increasingly used for cancer therapy, but their extreme cost, often exceeding $10,000 per month, poses a significant barrier for patients and insurers alike. The findings findings of this study indicate that high out-of-pocket burden for expensive novel oral anticancer drugs leads to widespread use of charity support in the United States and that a significant financial barrier disparately affects older Medicare beneficiaries.
AHRQ-funded; HS022998.
Citation: Olszewski AJ, Zullo AR, Nering CR .
Use of charity financial assistance for novel oral anticancer agents.
J Oncol Pract 2018 Apr;14(4):e221-e28. doi: 10.1200/jop.2017.027896.
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Keywords: Cancer, Elderly, Healthcare Costs, Medicare, Medication
Kistler CE, Golin C, Morris C
Design of a randomized clinical trial of a colorectal cancer screening decision aid to promote appropriate screening in community-dwelling older adults.
This paper reports on the design of a randomized clinical trial to understand the effects of a patient decision aid on appropriate colorectal cancer screening. The study aims to determine the ability of a patient decision aid to increase individualized and appropriate colorectal cancer screening.
AHRQ-funded; HS021133.
Citation: Kistler CE, Golin C, Morris C .
Design of a randomized clinical trial of a colorectal cancer screening decision aid to promote appropriate screening in community-dwelling older adults.
Clin Trials 2017 Dec;14(6):648-58. doi: 10.1177/1740774517725289..
Keywords: Cancer, Cancer: Colorectal Cancer, Decision Making, Elderly, Prevention, Screening
Park JS, Bateni SB, Bold RJ
The modified frailty index to predict morbidity and mortality for retroperitoneal sarcoma resections.
The researchers performed a retrospective analysis of patients with a diagnosis of primary malignant retroperitoneal neoplasm who underwent surgical resection. The modified frailty index (mFI) was calculated according to standard published methods. Their data demonstrate that the majority of patients undergoing retroperitoneal sarcoma resections have few, if any, comorbidities. The mFI was a limited predictor of overall and serious complications and was not a significant predictor of mortality.
AHRQ-funded; HS022236.
Citation: Park JS, Bateni SB, Bold RJ .
The modified frailty index to predict morbidity and mortality for retroperitoneal sarcoma resections.
J Surg Res 2017 Sep;217:191-97. doi: 10.1016/j.jss.2017.05.025.
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Keywords: Cancer, Elderly, Health Status, Mortality, Risk
Shih YT, Xu Y, Liu L
Rising prices of targeted oral anticancer medications and associated financial burden on Medicare beneficiaries.
This study examined trends in targeted oral anticancer medication (TOAM) prices and patient out-of-pocket (OOP) payments in Medicare Part D and estimated the actual effects on patient OOP payments of partial filling of the coverage gap by 2012. It concluded that rising TOAM prices threaten the financial relief patients have begun to experience under closure of the coverage gap in Medicare Part D.
AHRQ-funded; HS020263.
Citation: Shih YT, Xu Y, Liu L .
Rising prices of targeted oral anticancer medications and associated financial burden on Medicare beneficiaries.
J Clin Oncol 2017 Aug 1;35(22):2482-89. doi: 10.1200/jco.2017.72.3742.
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Keywords: Cancer, Medication, Healthcare Costs, Medicare, Elderly
Schuler MS, Joyce NR, Huskamp HA
Medicare beneficiaries with advanced lung cancer experience diverse patterns of care from diagnosis to death.
Using Medicare claims data for patients diagnosed with extensive-stage small-cell lung cancer, the authors used latent class analysis to identify classes of people with different care patterns. The findings showed substantial heterogeneity in patterns of care for patients with advanced cancer, which should be accounted for in efforts to improve end-of-life care.
AHRQ-funded; HS022998.
Citation: Schuler MS, Joyce NR, Huskamp HA .
Medicare beneficiaries with advanced lung cancer experience diverse patterns of care from diagnosis to death.
Health Aff 2017 Jul;36(7):1193-200. doi: 10.1377/hlthaff.2017.0448..
Keywords: Cancer, Cancer: Lung Cancer, Care Management, Elderly, Medicare, Palliative Care
Iyer AS, Bakitas M
Early palliative care in advanced illness: do right by mama.
This letter describes a case study where the doctor and the family decided not to do aggressive treatment on their mother in her 80’s with metastatic lung cancer and pneumonia. After describing the intubation procedure and the use of mechanical ventilation, the family decided that palliative care was the best option. The doctor emphasizes the use of palliative care as the best outcome for many terminally ill patients.
AHRQ-funded; HS023009; HS013852.
Citation: Iyer AS, Bakitas M .
Early palliative care in advanced illness: do right by mama.
JAMA Intern Med 2017 Jun;177(6):761-62. doi: 10.1001/jamainternmed.2017.0764.
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Keywords: Cancer, Cancer: Lung Cancer, Case Study, Decision Making, Elderly, Palliative Care, Patient-Centered Outcomes Research
Winters-Stone KM, Moe E, Graff JN
Falls and frailty in prostate cancer survivors: current, past, and never users of androgen deprivation therapy.
This study compared the prevalence of and association between falls and frailty of prostate cancer survivors (PCSs) who were current, past or never users of androgen deprivation therapy (ADT). It concluded that current and past exposure to ADT is linked to higher risk of falls and frailty than no treatment.
AHRQ-funded; HS022981.
Citation: Winters-Stone KM, Moe E, Graff JN .
Falls and frailty in prostate cancer survivors: current, past, and never users of androgen deprivation therapy.
J Am Geriatr Soc 2017 Jul;65(7):1414-19. doi: 10.1111/jgs.14795.
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Keywords: Cancer: Prostate Cancer, Cancer, Falls, Medication, Elderly
Rocque GB, Pisu M, Jackson BE
Resource use and Medicare costs during lay navigation for geriatric patients with cancer.
This study examined the influence of lay navigation on health care spending and resource use among geriatric patients with cancer within The University of Alabama at Birmingham Health System Cancer Community Network. It found that, compared with a matched comparison group, the mean total costs declined by $781.29 more per quarter per navigated patient, for an estimated $19 million decline per year across the network.
AHRQ-funded; HS023009.
Citation: Rocque GB, Pisu M, Jackson BE .
Resource use and Medicare costs during lay navigation for geriatric patients with cancer.
JAMA Oncol 2017 Jun;3(6):817-25. doi: 10.1001/jamaoncol.2016.6307.
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Keywords: Elderly, Cancer, Healthcare Costs, Medicare, Patient and Family Engagement, Patient-Centered Healthcare, Healthcare Delivery
Palta P, Huang ES, Kalyani RR
Hemoglobin A1c and mortality in older adults with and without diabetes: Results from the National Health and Nutrition Examination Surveys (1988-2011).
In this paper, the investigators sought to estimate the risk of mortality by HbA1c levels among older adults with and without diabetes. They concluded that an HbA1c >8.0% was associated with increased risk of all-cause and cause-specific mortality in older adults with diabetes. The investigators suggest that their results support the idea that better glycemic control is important for reducing mortality; however, they also indicate that there is a need for individualized glycemic targets for older adults with diabetes depending on their demographics, duration of diabetes, and existing comorbidities.
AHRQ-funded; HS018542.
Citation: Palta P, Huang ES, Kalyani RR .
Hemoglobin A1c and mortality in older adults with and without diabetes: Results from the National Health and Nutrition Examination Surveys (1988-2011).
Diabetes Care 2017 Apr;40(4):453-60. doi: 10.2337/dci16-0042.
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Keywords: Cancer, Cardiovascular Conditions, Diabetes, Elderly, Mortality, Risk
Koroukian SM, Schiltz NK, Warner DF
Social determinants, multimorbidity, and patterns of end-of-life care in older adults dying from cancer.
In this study, the researchers examined the association between end-of-life care and each of the social determinants of health and multimorbidity (MM), hypothesizing that higher MM is associated with less aggressive care. They found that, while 61.2 percent of the patients enrolled in hospice, 24.6 percent underwent cancer-directed treatment; 55.1 percent were admitted to the hospital and/or ED; and 21.7 percent died in the hospital.
AHRQ-funded; HS023113.
Citation: Koroukian SM, Schiltz NK, Warner DF .
Social determinants, multimorbidity, and patterns of end-of-life care in older adults dying from cancer.
J Geriatr Oncol 2017 Mar;8(2):117-24. doi: 10.1016/j.jgo.2016.10.001.
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Keywords: Cancer, Elderly, Palliative Care, Social Determinants of Health
Shen C, Zhao B, Liu L
Financial burden for patients with chronic myeloid leukemia enrolled in Medicare Part D taking targeted oral anticancer medications.
In this study, the investigators examined financial burden for patients with chronic myeloid leukemia enrolled in Medicare Part D taking targeted oral anticancer medications. The authors concluded that patients experience quick entry and exit from the coverage gap (also called the donut hole) as a result of the high price of targeted oral anticancer medications. They suggested that closing the donut hole would provide financial relief during the initial month(s) of treatment but will not completely eliminate the financial burden.
AHRQ-funded; HS020263.
Citation: Shen C, Zhao B, Liu L .
Financial burden for patients with chronic myeloid leukemia enrolled in Medicare Part D taking targeted oral anticancer medications.
J Oncol Pract 2017 Feb;13(2):e152-e62. doi: 10.1200/JOP.2016.014639..
Keywords: Cancer, Chronic Conditions, Elderly, Healthcare Costs, Medicare, Medication
Arvold ND, Cefalu M, Wang Y
Comparative effectiveness of radiotherapy with vs. without temozolomide in older patients with glioblastoma.
It is unknown whether the addition of temozolomide (TMZ) to radiotherapy (RT) is associated with improved overall survival among older glioblastoma patients. This study found that among a large cohort of older glioblastoma patients treated in a real-world setting, the addition of TMZ to RT was associated with a small survival gain.
AHRQ-funded; HS021991.
Citation: Arvold ND, Cefalu M, Wang Y .
Comparative effectiveness of radiotherapy with vs. without temozolomide in older patients with glioblastoma.
J Neurooncol 2017 Jan;131(2):301-11. doi: 10.1007/s11060-016-2294-7.
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Keywords: Cancer, Comparative Effectiveness, Elderly, Medication, Patient-Centered Outcomes Research
Vyas A, Madhavan S, Sambamoorthi U
Association between persistence with mammography screening and stage at diagnosis among elderly women diagnosed with breast cancer.
The objective of this study is to determine the association between persistence with mammography screening and stage at breast cancer (BC) diagnosis among elderly women. It found that, as compared to women who were not persistent with mammography screening, women who were persistent with mammography screening were significantly more likely to be diagnosed at earlier stages of BC.
AHRQ-funded; HS018622.
Citation: Vyas A, Madhavan S, Sambamoorthi U .
Association between persistence with mammography screening and stage at diagnosis among elderly women diagnosed with breast cancer.
Breast Cancer Res Treat 2014 Dec;148(3):645-54. doi: 10.1007/s10549-014-3204-3..
Keywords: Cancer, Cancer: Breast Cancer, Diagnostic Safety and Quality, Elderly, Prevention, Screening, Women