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Vermeille M, Koster KL, Benzaquen D, Champion A, Taussky D, Kaulanjan K, Früh M. A Literature Review of Racial Disparities in Prostate Cancer Research. Curr Oncol 2023; 30:9886-9894. [PMID: 37999138 PMCID: PMC10670533 DOI: 10.3390/curroncol30110718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Despite recent awareness of institutional racism, there are still important racial disparities in prostate cancer medical research. We investigated the historical development of research on racial disparities and bias. METHODS PubMed was searched for the term 'prostate cancer race' and added key terms associated with racial disparity. As an indicator of scientific interest in the topic, we analyzed whether the number of publications increased linearly as an indicator of growing interest. The linearity is expressed as R2. RESULTS The general search term "prostate cancer race" yielded 4507 publications. More specific search terms with ≥12 publications showing a higher scientific interest were found after 2005. The terms with the most publications when added to the general term were "genetic" (n = 1011), "PSA" (n = 995), and "detection" (n = 861). There was a linear increase in publications for "prostate cancer race" (R2 = 0.75) since 1980. Specific terms added to the general terms with a high linear increase (R2 ≥ 0.7) were "screening" (R2 = 0.82), "detection" (R2 = 0.72), "treatment access" (R2 = 0.71), and "trial underrepresentation" (R2 = 0.71). However, only a few studies have investigated its association with sexual activity. A combination with "sexual" showed 157 publications but only two years with ≥12 publications/year. CONCLUSION The terms "genetic", "PSA", and "detection" have been the focus of recent research on racial differences in prostate cancer. We found that old stereotypes are still being mentioned but seem to find little interest in the current literature. Further research interest was found in "treatment access". Recently, interest in socioeconomic factors has decreased.
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Affiliation(s)
- Matthieu Vermeille
- Genolier Swiss Radio-Oncology Network, Clinique de Genolier, 1272 Genolier, Switzerland;
| | - Kira-Lee Koster
- Department of Medical Oncology and Hematology, Cantonal Hospital St. Gallen, 9007 St. Gallen, Switzerland; (K.-L.K.); (M.F.)
| | - David Benzaquen
- Radiation Oncology, Hôpital de La Tour, 1217 Meyrin, Switzerland; (D.B.); (A.C.)
| | - Ambroise Champion
- Radiation Oncology, Hôpital de La Tour, 1217 Meyrin, Switzerland; (D.B.); (A.C.)
| | - Daniel Taussky
- Radiation Oncology, Hôpital de La Tour, 1217 Meyrin, Switzerland; (D.B.); (A.C.)
- Department of Radiation Oncology, Centre Hospitalier de l’Université de Montréal, Montreal, QC H3Y2V4, Canada
| | - Kevin Kaulanjan
- Department of Urology, Université des Antilles, CHU de Guadeloupe, 97110 Pointe-à-Pitre, France;
| | - Martin Früh
- Department of Medical Oncology and Hematology, Cantonal Hospital St. Gallen, 9007 St. Gallen, Switzerland; (K.-L.K.); (M.F.)
- Department of Medical Oncology, Inselspital, University Hospital Bern, 3010 Bern, Switzerland
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Steck SE, Su LJ, Antwi SO, Morris BB, Crawford B, Adams SA, Hebert JR, Fontham ETH, Bensen JT, Mohler JL, Arab L. Recreational and occupational physical activity in relation to prostate cancer aggressiveness: the North Carolina-Louisiana Prostate Cancer Project (PCaP). Cancer Causes Control 2022; 33:875-887. [PMID: 35320830 PMCID: PMC10964168 DOI: 10.1007/s10552-022-01572-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 03/07/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE To examine associations between recreational and occupational physical activity and prostate cancer aggressiveness in a population-based, case-only, incident prostate cancer study. METHODS Data were analyzed from the cross-sectional North Carolina-Louisiana Prostate Cancer Project of African-American (n = 1,023) and European-American (n = 1,079) men newly diagnosed with prostate cancer (CaP). High-aggressive CaP was defined as Gleason sum ≥ 8, or prostate-specific antigen > 20 ng/ml, or Gleason sum ≥ 7 and clinical stage T3-T4. Metabolic equivalent tasks (MET) were estimated from self-reported recreational physical activity in the year prior to diagnosis assessed retrospectively via a validated questionnaire and from occupational physical activity based on job titles. Associations between physical activity variables and high-aggressive prostate cancer were estimated using logistic regression to calculate odds ratios (ORs) and 95% confidence intervals (CIs), adjusting for multiple confounders. RESULTS There was suggestive evidence that walking for 75-150 min/week for exercise is associated with lower odds of high-aggressive prostate cancer compared to no walking (OR = 0.69, 95% CI 0.47-1.01). Physical activity at the current job was associated with 24% lower odds of high-aggressive prostate cancer (highest vs. lowest tertile OR = 0.76, 95% CI 0.56-1.04). However, total MET-h/week of recreational physical activity and accumulation of high-level physical activity at the longest-held job were not associated with high-aggressive prostate cancer. Results did not vary by race. CONCLUSIONS The odds of high-aggressive prostate cancer were lower among men who walk for exercise and those engaged in occupations with high activity levels.
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Affiliation(s)
- Susan E Steck
- Epidemiology and Biostatistics, and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA.
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, 915 Greene Street, Room 456, Columbia, SC, 29208, USA.
| | - L Joseph Su
- Department of Epidemiology, Fay W. Boozman College of Public Health, Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Samuel O Antwi
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL, USA
| | - Bonny B Morris
- Wake Forest Baptist Medical Comprehensive Cancer Center, Winston-Salem, NC, USA
| | - Brittany Crawford
- Epidemiology and Biostatistics, and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Swann Arp Adams
- Epidemiology and Biostatistics, and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
- College of Nursing, University of South Carolina, Columbia, SC, USA
| | - James R Hebert
- Epidemiology and Biostatistics, and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Elizabeth T H Fontham
- School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Jeannette T Bensen
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - James L Mohler
- Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Lenore Arab
- David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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Family history of prostate cancer and prostate tumor aggressiveness in black and non-black men;results from an equal access biopsy study. Cancer Causes Control 2021; 32:337-346. [PMID: 33532986 PMCID: PMC7946692 DOI: 10.1007/s10552-020-01389-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 12/29/2020] [Indexed: 11/18/2022]
Abstract
Purpose To test for racial differences in associations between family history (FH) of prostate cancer (PC) and prostate cancer aggressiveness in a racially diverse equal access population undergoing prostate biopsy. Subjects/patients and methods We prospectively enrolled men undergoing prostate biopsy at the Durham Veterans Administration from 2007 to 2018 and assigned case or control status based on biopsy results. Race and FH of PC were self-reported on questionnaires. Logistic regression was used to test the association between FH and PC diagnosis overall and by tumor aggressiveness [high- (Grade Group 3–5) or low-grade (Grade Group 1–2) vs. no cancer], overall, and stratified by race. Models were adjusted for age and year of consent, race, PSA level, digital rectal exam findings, prostate volume, and previous (negative) biopsy receipt. Results Of 1,225 men, 323 had a FH of PC and 652 men were diagnosed with PC on biopsy. On multivariable analysis, FH was associated with increased odds of high-grade PC in black (OR 1.85, p = 0.041) and all men (OR 1.56, p = 0.057) and was unrelated to overall or low-grade PC diagnosis, overall, or stratified by race (all p ≥ 0.325). In sensitivity analyses among men without a previous biopsy, results were slightly more pronounced. Conclusion In this setting of equal access to care, positive FH of PC was associated with increased tumor aggressiveness in black men, but not non-black men undergoing prostate biopsy. Further research is required to tease apart the contribution of genetics from increased PC awareness potentially influencing screening and biopsy rates in men with FH. Supplementary Information The online version of this article (10.1007/s10552-020-01389-8) contains supplementary material, which is available to authorized users.
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Owens OL, Tavakoli AS, Rose T, Wooten NR. Development and Psychometric Properties of a Prostate Cancer Knowledge Scale for African American Men. Am J Mens Health 2019; 13:1557988319892459. [PMID: 31849259 PMCID: PMC6920598 DOI: 10.1177/1557988319892459] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 10/07/2019] [Accepted: 11/01/2019] [Indexed: 11/25/2022] Open
Abstract
African American men have the highest prostate cancer-related mortality nationally. In response to this disparity, targeted interventions are emerging to enhance African American men's prostate cancer (PrCA) knowledge to ensure they are equipped to make informed decisions about PrCA screening with health-care providers. African American men's PrCA knowledge has been measured inconsistently over time with limited psychometric evidence. The factor structure of this construct in African American men is relatively unknown. This study describes the development and psychometric evaluation of an 18-item Prostate Cancer Knowledge Scale among 352 African American men. Exploratory factor analysis (EFA) was conducted using weighted least square mean and variance estimation with Geomin rotation. EFA yielded three factors: PrCA Anatomy and Screening (6 items), Risk Factors (5 items), Warning Signs (7 items) with good internal consistency reliability at KR-20 = .80 for the total scale and .64, .66, and .75, respectively, for each subscale. Factor loadings ranged from .31 to .86. The standardized root mean square residual (0.08) indicated that the factor structure explained most of the correlations. The three-factor, 18-item Prostate Cancer Knowledge Scale demonstrates that PrCA knowledge is a multidimensional construct and has utility for reliably measuring PrCA knowledge among African American men. Future research is required to confirm this factor structure among socio-demographically diverse African Americans.
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Affiliation(s)
- Otis L. Owens
- College of Social Work, University of
South Carolina, Columbia, USA
| | | | - Theda Rose
- School of Social Work, University of
Maryland, Baltimore, USA
| | - Nikki R. Wooten
- College of Social Work, University of
South Carolina, Columbia, USA
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Cuevas AG, Trudel-Fitzgerald C, Cofie L, Zaitsu M, Allen J, Williams DR. Placing prostate cancer disparities within a psychosocial context: challenges and opportunities for future research. Cancer Causes Control 2019; 30:443-456. [PMID: 30903484 PMCID: PMC6484832 DOI: 10.1007/s10552-019-01159-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 03/12/2019] [Indexed: 01/13/2023]
Abstract
Black men are more likely to be diagnosed with prostate cancer compared with White men. Despite advances in prevention and treatment strategies, disparities in prostate cancer among Black men persist. While research on the causes of higher incidence and mortality is ongoing, there is limited evidence in the existing literature that clearly speaks to the potential psychological or social factors that may contribute to disparities in prostate cancer incidence. Given the lack of attention to this issue, we review scientific evidence of the ways in which social factors, including socioeconomic status and racial segregation, as well as psychological factors, like depression and anxiety, are related to subsequent prostate cancer risk, which could occur through behavioral and biological processes. Our objective is to illuminate psychosocial factors and their context, using a racial disparity lens, which suggests opportunities for future research on the determinants of prostate cancer. Ultimately, we aim to contribute to a robust research agenda for the development of new prostate cancer prevention measures to reduce racial disparities.
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Affiliation(s)
- Adolfo G Cuevas
- Department of Community Health, Tufts University, Medford, MA, 02155, USA.
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.
| | - Claudia Trudel-Fitzgerald
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Leslie Cofie
- Health Education and Promotion, East Carolina University, Greenville, NC, 27858, USA
| | - Masayoshi Zaitsu
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Jennifer Allen
- Department of Community Health, Tufts University, Medford, MA, 02155, USA
| | - David R Williams
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
- Department of African and African American Studies, Harvard University, Cambridge, MA, 02138, USA
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Sritharan J, MacLeod JS, McLeod CB, Peter A, Demers PA. Prostate cancer risk by occupation in the Occupational Disease Surveillance System (ODSS) in Ontario, Canada. Health Promot Chronic Dis Prev Can 2019; 39:178-186. [PMID: 31091061 PMCID: PMC6580924 DOI: 10.24095/hpcdp.39.5.02] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Previous Canadian epidemiologic studies have identified associations between occupations and prostate cancer risk, though evidence is limited. However, there are no well-established preventable risk factors for prostate cancer, which warrants the need for further investigation into occupational factors to strengthen existing evidence. This study uses occupation and prostate cancer information from a large surveillance cohort in Ontario that linked workers' compensation claim data to administrative health databases. METHODS Occupations were examined using the Occupational Disease Surveillance System (ODSS). ODSS included 1 231 177 male workers for the 1983 to 2015 period, whose records were linked to the Ontario Cancer Registry (OCR) in order to identify and follow up on prostate cancer diagnoses. Cox proportional hazard models were used to calculate age-adjusted hazard ratios and 95% CI to estimate the risk of prostate cancer by occupation group. RESULTS A total of 34 997 prostate cancer cases were diagnosed among workers in ODSS. Overall, elevated prostate cancer risk was observed for men employed in management/ administration (HR 2.17, 95% CI = 1.98-2.38), teaching (HR 1.99, 95% CI = 1.79-2.21), transportation (HR 1.20, 95% CI = 1.16-1.24), construction (HR 1.09, 95% CI = 1.06-1.12), firefighting (HR 1.62, 95% CI = 1.47-1.78), and police work (HR 1.20, 95% CI = 1.10-1.32). Inconsistent findings were observed for clerical and farming occupations. CONCLUSION Associations observed in white collar, construction, transportation, and protective services occupations were consistent with previous Canadian studies. Findings emphasize the need to assess job-specific exposures, sedentary behaviour, psychological stress, and shift work. Understanding specific occupational risk factors can lead to better understanding of prostate cancer etiology and improve prevention strategies.
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Affiliation(s)
- Jeavana Sritharan
- Occupational Cancer Research Centre, Cancer Care Ontario, Toronto, Ontario, Canada
| | - Jill S MacLeod
- Occupational Cancer Research Centre, Cancer Care Ontario, Toronto, Ontario, Canada
| | - Christopher B McLeod
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
- Institute for Work & Health, Toronto, Ontario, Canada
| | - Alice Peter
- Population Health and Prevention, Cancer Care Ontario, Toronto, Ontario, Canada
| | - Paul A Demers
- Occupational Cancer Research Centre, Cancer Care Ontario, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
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Cobran EK, Young HN, Chen RC, Chen X, Reeves J, Godley PA, Shah S. Race and Time to Receipt of Androgen Deprivation Therapy Among Men With Metastatic Prostate Cancer. J Natl Med Assoc 2018; 111:246-255. [PMID: 30389146 DOI: 10.1016/j.jnma.2018.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 10/05/2018] [Indexed: 11/17/2022]
Abstract
BACKGROUND The Medicare Modernization Act (MMA) drastically reduced reimbursement for androgen deprivation therapy (ADT) in 2005. One unintended consequence of the MMA may be an increase in the racial disparities in receipt of ADT. Given these policy changes, it becomes increasingly important to assess racial disparities in timely receipt of ADT. METHODS The purpose of this study is to evaluate the associations between race and median time to receipt of ADT among men with metastatic prostate cancer before and after the passage of the MMA. A population-based retrospective cohort was created from the Surveillance, Epidemiology, and End Results-Medicare. RESULTS A total of 1,846 African-American and 9,462 Caucasian men diagnosed with metastatic prostate cancer from 2000 through 2011 were included. An accelerated failure time regression model was used to examine factors associated with racial differences in median time to receipt of ADT. Results indicate that African-American men had a longer median time to receipt of ADT both before the MMA (Time Ratio (TR): 1.15; 95% Confidence Interval (CI) [1.05, 1.27]) and after the MMA (TR: 1.29; 95% CI [1.10, 1.53]) as compared to Caucasian men. In addition to race, men residing in South had longer median time to receipt of ADT (TR: 1.26, 1.52; 95% CI [1.01, 1.52; 1.24, 1.87] before and after MMA, respectively) compared to the Northeast region. CONCLUSION Considering the palliative benefits of ADT, it is important to develop effective strategies to address racial differences in receipt of treatment for metastatic prostate cancer.
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Affiliation(s)
- Ewan K Cobran
- University of Georgia, College of Pharmacy, Department of Clinical and Administrative Pharmacy, Division of Pharmaceutical Health Services, Outcomes, and Policy, Robert C. Wilson Pharmacy 250 West Green Street, 270B, Athens, GA 30602, USA.
| | - Henry N Young
- University of Georgia, College of Pharmacy, Department of Clinical and Administrative Pharmacy, Division of Pharmaceutical Health Services, Outcomes, and Policy, Robert C. Wilson Pharmacy 250 West Green Street, 270J, Athens, GA 30602, USA
| | - Ronald C Chen
- University of North Carolina at Chapel Hill, School of Medicine, Department of Radiation Oncology and Urology, 101 Manning Drive, Chapel Hill, NC 27514, USA
| | - Xianyan Chen
- University of Georgia, Franklin College of Arts and Sciences, Department of Statistics, Statistical Consulting Center, 310 Herty Drive, Athens, GA 30602, USA
| | - Jaxk Reeves
- University of Georgia, Franklin College of Arts and Sciences, Department of Statistics, Statistical Consulting Center, 310 Herty Drive, Athens, GA 30602, USA
| | - Paul A Godley
- University of North Carolina at Chapel Hill, School of Medicine, Department of Hematology and Oncology, 4064 Bondurant Hall, Chapel Hill, NC 27514, USA
| | - Surbhi Shah
- Evidera, Real-World Evidence, 500 Totten Pond Road, Waltham, MA 02451, USA
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Layne TM, Graubard BI, Ma X, Mayne ST, Albanes D. Prostate cancer risk factors in black and white men in the NIH-AARP Diet and Health Study. Prostate Cancer Prostatic Dis 2018; 22:91-100. [PMID: 30108373 DOI: 10.1038/s41391-018-0070-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 06/13/2018] [Accepted: 06/29/2018] [Indexed: 11/09/2022]
Abstract
BACKGROUND There are few prospective studies comparing race-specific associations between diet, nutrients, and health-related parameters, and prostate cancer risk. METHODS Race-specific prostate cancer risk associations were examined among men in the National Institutes of Health (NIH)-AARP Diet and Health Study. We identified 1417 cases among black men (209 advanced), and 28,845 among white men (3898 advanced). Cox proportional hazards regression models estimated hazard ratios (HRs) and 95% confidence intervals (CIs). We also evaluated the cumulative change in the HR for black race following adjustment for each factor. RESULTS Race-specific prostate cancer associations were similar in black and white men across disease subtypes only for history of diabetes (overall : HR = 0.77, 95% CI: 0.65-0.90 and HR = 0.72, 95% CI: 0.69-0.76, respectively; Pinteraction = 0.66). By contrast, there was a positive risk association with height for white men and inverse for black men (Pinteraction: non-advanced = 0.01; advanced = 0.04). This difference remained among men with at least 2 years of follow-up for non-advanced (Pinteraction = 0.01), but not advanced disease (Pinteraction = 0.24); or after adjustment for prostate cancer screening (non-advanced Pinteraction = 0.53, advanced Pinteraction = 0.31). The only other evidence of interaction with race was observed for dietary vitamin D intake and non-advanced disease, but only after adjustment for screening (Pinteraction = 0.02). Cumulative adjustment for each factor increased the HR for black race by 32.9% for overall cancer and 12.4% for advanced disease. CONCLUSIONS Our data suggest few of the dietary, nutrient, and health-related factors associated with prostate cancer risk in predominantly non-Hispanic white men were associated with risk in black men, and adjustment for these factors widen the black-white difference in risk. Larger studies of black men, particularly with prospective data, are needed to help identify risk factors relevant to this population.
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Affiliation(s)
- Tracy M Layne
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA.
| | - Barry I Graubard
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Xiaomei Ma
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, USA.,Yale Comprehensive Cancer Center, Yale University, New Haven, CT, USA
| | - Susan T Mayne
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, USA.,Center for Food Safety and Applied Nutrition, Food and Drug Administration, College Park, MD, USA
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
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Shah S, Young HN, Cobran EK. Comparative Effectiveness of Conservative Management Compared to Cryotherapy in Localized Prostate Cancer Patients. Am J Mens Health 2018; 12:1681-1691. [PMID: 29877137 PMCID: PMC6142136 DOI: 10.1177/1557988318781731] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The high frequency of treatment-related side effects for men with localized prostate cancer creates uncertainty for treatment outcomes. This study assessed the comparative effectiveness of treatment-related side effects associated with conservative management and cryotherapy in patients with localized prostate cancer. A retrospective longitudinal cohort study was conducted, using the linked data of the Surveillance, Epidemiology, and End Results and Medicare, which included patients diagnosed from 2000 through year 2013, and their Medicare claims information from 2000 through 2014. To compare the differences in baseline characteristics and treatment-related side effects between the study cohorts, χ2 tests were conducted. Multivariate logistic regression was used to assess the association between treatment selection and side effects. There were 7,998 and 3,051 patients in the conservative management and cryotherapy cohort, respectively. The likelihood of erectile dysfunction, lower urinary tract obstruction, urinary fistula, urinary incontinence, and hydronephrosis was reported to be significantly lower (53%, 35%, 69%, 65%, and 36%, respectively) in the conservative management cohort. Conservative management had a lower likelihood of treatment-related side effects compared to cryotherapy. However, further research is needed to compare other significant long-term outcomes such as costs associated with these treatment choices and quality of life.
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Affiliation(s)
- Surbhi Shah
- 1 Department of Clinical and Administrative Pharmacy, Division of Pharmaceutical Health Services, Outcomes, and Policy, College of Pharmacy, University of Georgia, Athens, GA, USA
| | - Henry N Young
- 1 Department of Clinical and Administrative Pharmacy, Division of Pharmaceutical Health Services, Outcomes, and Policy, College of Pharmacy, University of Georgia, Athens, GA, USA
| | - Ewan K Cobran
- 1 Department of Clinical and Administrative Pharmacy, Division of Pharmaceutical Health Services, Outcomes, and Policy, College of Pharmacy, University of Georgia, Athens, GA, USA
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Al Qadire M, Alkhalaileh M, ALBashtawy M. Lifestyle and Dietary Factors and Prostate Cancer Risk: A Multicentre Case-Control Study. Clin Nurs Res 2018; 28:992-1008. [PMID: 29426230 DOI: 10.1177/1054773818757311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study aims to explore the association between fruit and vegetable intake, high fat, body mass index (BMI) score, physical activity, and the occurrence of prostate cancer among Jordanian men. A case-control study was conducted in three large referral hospitals. The sample included 165 prostate cancer patients in the case group and 177 healthy participants in the control group. The results showed that smoking (odds ratio [OR] = 0.32; 95% confidence interval [CI] = [0.18, 0.57]), a history of prostate infection (OR = 0.21; 95% CI = [0.11, 0.38]), high-fat intake (OR = 0.44; 95% CI = [0.23, 0.85]), and increased mean of BMI (OR = 1.08; 95% CI = [1.02, 1.13]) increased the likelihood of developing prostate cancer. Healthy diet and giving up smoking are recommended, as they may contribute to a reduction in the incidence of prostate cancer. More randomized clinical trials in this area are needed to strengthen the available evidence and reduce the effects of confounding variables.
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Percy-Laurry A, Altekruse SF, Hossain MB, O'Keefe AM, Johnson NJ, Kamangar F. Association Between Socioeconomic Status and Tumor Grade Among Black Men with Prostate Cancer. J Natl Med Assoc 2017; 110:53-57. [PMID: 29510844 DOI: 10.1016/j.jnma.2017.06.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/26/2017] [Accepted: 06/26/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Prostate cancer affects black men disproportionately. Black men have an increased incidence of prostate cancer diagnoses at earlier ages and higher grade as indicated by Gleason score, compared to other races. This study investigates the impact of socioeconomic status (SES) on prostate cancer tumor grade among black men. METHODS Black men with a prostate cancer diagnosis during 1973-2011 were examined using individual-level data from the SEER NLMS database. Logistic regression model estimated the likelihood of receiving a diagnosis of high versus low grade prostate cancer based on self-reported SES status at the time of diagnosis. RESULTS Men who completed high school only were statistically significantly more likely to have a higher prostate cancer grade than those with a bachelor's degree or higher. However, there was no dose-response effect across educational strata. Retirees were 30% less likely to have higher grade tumors compared to those who were employed. CONCLUSIONS SES differences among black men did not fully explain the high grade of prostate cancer. Further research is needed on the biology of the disease and to assess access to medical care and prostate health education, discrimination, stress exposures, and social norms that might contribute to the aggressiveness of prostate cancer among black men.
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Affiliation(s)
- Antoinette Percy-Laurry
- Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, Rockville, MD, USA.
| | - Sean F Altekruse
- Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Mian B Hossain
- Morgan State University, School of Community Health and Policy, Baltimore, MD, USA
| | - Anne Marie O'Keefe
- Morgan State University, School of Community Health and Policy, Baltimore, MD, USA
| | | | - Farin Kamangar
- Morgan State University, School of Community Health and Policy, Baltimore, MD, USA
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Abstract
OBJECTIVES To review current evidence about cancer screening challenges that lead to cancer health disparities in minority populations. DATA SOURCES Research reports, published journal articles, web sites, and clinical practice observations. CONCLUSION There are significant disparities that exist in cancer screening practices among racial and ethnic minority and underrepresented populations, resulting in disproportionately higher cancer mortality rates in these populations. IMPLICATIONS FOR NURSING PRACTICE Nurses are positioned to lead in educating, promoting, and bringing awareness to cancer screening recommendationsand current cancer prevention guidelines for at-risk individuals, and help them to implement these guidelines to reduce incidence and mortality.
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Prostate and Colorectal Cancer Screening Uptake among US and Foreign-Born Males: Evidence from the 2015 NHIS Survey. J Community Health 2016; 42:612-623. [DOI: 10.1007/s10900-016-0296-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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DeSantis CE, Siegel RL, Sauer AG, Miller KD, Fedewa SA, Alcaraz KI, Jemal A. Cancer statistics for African Americans, 2016: Progress and opportunities in reducing racial disparities. CA Cancer J Clin 2016; 66:290-308. [PMID: 26910411 DOI: 10.3322/caac.21340] [Citation(s) in RCA: 564] [Impact Index Per Article: 70.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In this article, the American Cancer Society provides the estimated number of new cancer cases and deaths for blacks in the United States and the most recent data on cancer incidence, mortality, survival, screening, and risk factors for cancer. Incidence data are from the National Cancer Institute, the Centers for Disease Control and Prevention, and the North American Association of Central Cancer Registries, and mortality data are from the National Center for Health Statistics. Approximately 189,910 new cases of cancer and 69,410 cancer deaths will occur among blacks in 2016. Although blacks continue to have higher cancer death rates than whites, the disparity has narrowed for all cancers combined in men and women and for lung and prostate cancers in men. In contrast, the racial gap in death rates has widened for breast cancer in women and remained level for colorectal cancer in men. The reduction in overall cancer death rates since the early 1990s translates to the avoidance of more than 300,000 deaths among blacks. In men, incidence rates from 2003 to 2012 decreased for all cancers combined (by 2.0% per year) as well as for the top 3 cancer sites (prostate, lung, and colorectal). In women, overall rates during the corresponding time period remained unchanged, reflecting increasing trends in breast cancer combined with decreasing trends in lung and colorectal cancer rates. Five-year relative survival is lower for blacks than whites for most cancers at each stage of diagnosis. The extent to which these disparities reflect unequal access to health care versus other factors remains an active area of research. Progress in reducing cancer death rates could be accelerated by ensuring equitable access to prevention, early detection, and high-quality treatment. CA Cancer J Clin 2016;66:290-308. © 2016 American Cancer Society.
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Affiliation(s)
- Carol E DeSantis
- Director, Breast and Gynecological Cancer Surveillance, Surveillance and Health Services Research, American Cancer Society, Atlanta, GA
| | - Rebecca L Siegel
- Strategic Director, Surveillance Information Services, Surveillance and Health Services Research, American Cancer Society, Atlanta, GA
| | - Ann Goding Sauer
- Epidemiologist, Surveillance and Health Services Research, American Cancer Society, Atlanta, GA
| | - Kimberly D Miller
- Epidemiologist, Surveillance and Health Services Research, American Cancer Society, Atlanta, GA
| | - Stacey A Fedewa
- Director, Risk Factor and Screening Surveillance, Surveillance and Health Services Research, American Cancer Society, Atlanta, GA
| | - Kassandra I Alcaraz
- Strategic Director, Health Equities Research, Behavioral Research Center, American Cancer Society, Atlanta, GA
| | - Ahmedin Jemal
- Vice President, Surveillance and Health Services Research, American Cancer Society, Atlanta, GA
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Barrington WE, Schenk JM, Etzioni R, Arnold KB, Neuhouser ML, Thompson IM, Lucia MS, Kristal AR. Difference in Association of Obesity With Prostate Cancer Risk Between US African American and Non-Hispanic White Men in the Selenium and Vitamin E Cancer Prevention Trial (SELECT). JAMA Oncol 2016; 1:342-9. [PMID: 26181184 DOI: 10.1001/jamaoncol.2015.0513] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
IMPORTANCE African American men have the highest rates of prostate cancer incidence and mortality in the United States. Understanding underlying reasons for this disparity could identify preventive interventions important to African American men. OBJECTIVE To determine whether the association of obesity with prostate cancer risk differs between African American and non-Hispanic white men and whether obesity modifies the excess risk associated with African American race. DESIGN, SETTING, AND PARTICIPANTS Prospective study of 3398 African American and 22,673 non-Hispanic white men who participated in the Selenium and Vitamin E Cancer Prevention Trial (2001-2011) with present analyses completed in 2014. MAIN OUTCOMES AND MEASURES Total, low-grade (Gleason score <7), and high-grade (Gleason score ≥7) prostate cancer incidence. RESULTS With a median (interquartile range) follow-up of 5.6 (1.8) years, there were 270, 148, and 88 cases of total, low-, and high-grade prostate cancers among African American men and a corresponding 1453, 898, and 441 cases in non-Hispanic white men, respectively. Although not associated with risk among non-Hispanic white men, BMI was positively associated with an increase in risk among African American men (BMI, <25 vs ≥35: hazard ratio [HR], 1.49 [95% CI, 0.95, 2.34]; P for trend = .03). Consequently, the risk associated with African American race increased from 28% (HR, 1.28 [95% CI, 0.91-1.80]) among men with BMI less than 25 to 103% (HR, 2.03 [95% CI, 1.38-2.98]) among African American men with BMI at least 35 (P for trend = .03). Body mass index was inversely associated with low-grade prostate cancer risk within non-Hispanic white men (BMI, <25 vs ≥35: HR, 0.80 [95% CI, 0.58-1.09]; P for trend = .02) but positively associated with risk within African American men (BMI, <25 vs ≥35: HR, 2.22 [95% CI, 1.17-4.21]; P for trend = .05). Body mass index was positively associated with risk of high-grade prostate cancer in both non-Hispanic white men (BMI, <25 vs ≥35: HR, 1.33 [95% CI, 0.90-1.97]; P for trend = .01) and African American men, although the increase may be larger within African American men, albeit the racial interaction was not statistically significant (BMI, <25 vs ≥35: HR, 1.81 [95% CI, 0.79-4.11]; P for trend = .02). CONCLUSIONS AND RELEVANCE Obesity is more strongly associated with increased prostate cancer risk among African American than non-Hispanic white men and reducing obesity among African American men could reduce the racial disparity in cancer incidence. Additional research is needed to elucidate the mechanisms underlying the differential effects of obesity in African American and non-Hispanic white men.
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Affiliation(s)
- Wendy E Barrington
- Department of Psychosocial and Community Health, University of Washington, Seattle2Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle3Department of Epidemiology, University of Washington, Seattle
| | - Jeannette M Schenk
- Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle
| | - Ruth Etzioni
- Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle3Department of Epidemiology, University of Washington, Seattle
| | - Kathryn B Arnold
- SWOG Statistical Center, Fred Hutchinson Cancer Research Center, Seattle
| | - Marian L Neuhouser
- Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle
| | - Ian M Thompson
- Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio
| | - M Scott Lucia
- University of Colorado Denver School of Medicine, Aurora, Colorado
| | - Alan R Kristal
- Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle3Department of Epidemiology, University of Washington, Seattle
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Bayne CE, Jarrett TW. Cancer of the Prostate: Incidence in the USA. Prostate Cancer 2016. [DOI: 10.1016/b978-0-12-800077-9.00014-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Maruthappu M, Barnes I, Sayeed S, Ali R. Incidence of prostate and urological cancers in England by ethnic group, 2001-2007: a descriptive study. BMC Cancer 2015; 15:753. [PMID: 26486598 PMCID: PMC4618465 DOI: 10.1186/s12885-015-1771-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 10/10/2015] [Indexed: 01/08/2023] Open
Abstract
Background The aetiology of urological cancers is poorly understood and variations in incidence by ethnic group may provide insights into the relative importance of genetic and environmental risk factors. Our objective was to compare the incidence of four urological cancers (kidney, bladder, prostate and testicular) among six ‘non-White’ ethnic groups in England (Indian, Pakistani, Bangladeshi, Black African, Black Caribbean and Chinese) to each other and to Whites. Methods We obtained Information on ethnicity for all urological cancer registrations from 2001 to 2007 (n = 329,524) by linkage to the Hospital Episodes Statistics database. We calculated incidence rate ratios adjusted for age, sex and income, comparing the six ethnic groups (and combined ‘South Asian’ and ‘Black’ groups) to Whites and to each other. Results There were significant differences in the incidence of all four cancers between the ethnic groups (all p < 0.001). In general, ‘non-White’ groups had a lower incidence of urological cancers compared to Whites, except prostate cancer, which displayed a higher incidence in Blacks. (IRR 2.55) There was strong evidence of differences in risk between Indians, Pakistanis and Bangladeshis for kidney, bladder and prostate cancer (p < 0.001), and between Black Africans and Black Caribbeans for all four cancers (p < 0.001). Conclusions The risk of urological cancers in England varies greatly by ethnicity, including within groups that have traditionally been analysed together (South Asians and Blacks). In general, these differences are not readily explained by known risk factors, although the very high incidence of prostate cancer in both black Africans and Caribbeans suggests increased genetic susceptibility. g. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1771-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Isobel Barnes
- Cancer Epidemiology Unit, University of Oxford, Richard Doll Building, Roosevelt Drive, Oxford, OX3 7LF, UK.
| | - Shameq Sayeed
- Cancer Epidemiology Unit, University of Oxford, Richard Doll Building, Roosevelt Drive, Oxford, OX3 7LF, UK.
| | - Raghib Ali
- Cancer Epidemiology Unit, University of Oxford, Richard Doll Building, Roosevelt Drive, Oxford, OX3 7LF, UK. .,New York University Abu Dhabi, Abu Dhabi, PO Box 129188, United Arab Emirates.
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Joyce BT, Gao T, Liu L, Zheng Y, Liu S, Zhang W, Penedo F, Dai Q, Schwartz J, Baccarelli AA, Hou L. Longitudinal Study of DNA Methylation of Inflammatory Genes and Cancer Risk. Cancer Epidemiol Biomarkers Prev 2015; 24:1531-8. [PMID: 26265203 DOI: 10.1158/1055-9965.epi-15-0198] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 07/06/2015] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Chronic inflammation plays a key role in cancer etiology. DNA methylation modification, one of the epigenetic mechanisms regulating gene expression, is considered a hallmark of cancer. Human and animal models have identified numerous links between DNA methylation and inflammatory biomarkers. Our objective was to prospectively and longitudinally examine associations between methylation of four inflammatory genes and cancer risk. METHODS We included 795 Normative Aging Study participants with blood drawn one to four times from 1999 to 2012 (median follow-up, 10.6 years). Promoter DNA methylation of IL6, ICAM-1, IFN, and TLR2 in blood leukocytes was measured using pyrosequencing at multiple CpG sites and averaged by gene for data analysis. We used Cox regression models to examine prospective associations of baseline and time-dependent methylation with cancer risk and compared mean methylation differences over time between cancer cases and cancer-free participants. RESULTS Baseline IFN hypermethylation was associated with all-cancer (HR, 1.49; P = 0.04) and prostate cancer incidence (HR, 1.69; P = 0.02). Baseline ICAM-1 and IL6 hypermethylation were associated with prostate cancer incidence (HR, 1.43; P = 0.02; HR, 0.70; P = 0.03, respectively). In our time-dependent analyses, IFN hypermethylation was associated with all-cancer (HR, 1.79; P = 0.007) and prostate cancer (HR, 1.57; P = 0.03) incidence; and ICAM-1 and IL6 hypermethylation were associated with prostate cancer incidence (HR, 1.39; P = 0.02; HR, 0.69; P = 0.03, respectively). We detected significant ICAM-1 hypermethylation in cancer cases (P = 0.0003) 10 to 13 years prediagnosis. CONCLUSION Hypermethylation of IFN and ICAM-1 may play important roles in early carcinogenesis, particularly that of prostate cancer. IMPACT These methylation changes could inform the development of early detection biomarkers and potential treatments of inflammation-related carcinogenesis.
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Affiliation(s)
- Brian Thomas Joyce
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Division of Epidemiology/Biostatistics, School of Public Health, University of Illinois-Chicago, Chicago, Illinois.
| | - Tao Gao
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Lei Liu
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Yinan Zheng
- Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Siran Liu
- Department of Biomedical Engineering, Northwestern University, Chicago, Illinois
| | - Wei Zhang
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Frank Penedo
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Qi Dai
- Vanderbilt University Medical Center, Nashville, Tennessee
| | - Joel Schwartz
- Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts
| | - Andrea A Baccarelli
- Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts
| | - Lifang Hou
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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19
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Ilic M, Ilic I. Prostate cancer mortality in Serbia, 1991-2010: a joinpoint regression analysis. J Public Health (Oxf) 2015; 38:e63-7. [PMID: 25994152 DOI: 10.1093/pubmed/fdv064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The aim of this descriptive epidemiological study was to analyze the mortality trend of prostate cancer in Serbia (excluding the Kosovo and Metohia) from 1991 to 2010. METHODS The age-standardized prostate cancer mortality rates (per 100 000) were calculated by direct standardization, using the World Standard Population. Average annual percentage of change (AAPC) and the corresponding 95% confidence interval (CI) was computed for trend using the joinpoint regression analysis. RESULTS Significantly increased trend in prostate cancer mortality was recorded in Serbia continuously from 1991 to 2010 (AAPC = +2.2, 95% CI = 1.6-2.9). Mortality rates for prostate cancer showed a significant upward trend in all men aged 50 and over: AAPC (95% CI) was +1.9% (0.1-3.8) in aged 50-59 years, +1.7% (0.9-2.6) in aged 60-69 years, +2.0% (1.2-2.9) in aged 70-79 years and +3.5% (2.4-4.6) in aged 80 years and over. According to comparability test, prostate cancer mortality trends in majority of age groups were parallel (final selected model failed to reject parallelism, P > 0.05). CONCLUSION The increasing prostate cancer mortality trend implies the need for more effective measures of prevention, screening and early diagnosis, as well as prostate cancer treatment in Serbia.
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Affiliation(s)
- Milena Ilic
- Department of Epidemiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac 34000, Serbia
| | - Irena Ilic
- Student of Integrated Academic Studies for a Doctor of Medicine, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
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Saadat S, Yousefifard M, Asady H, Moghadas Jafari A, Fayaz M, Hosseini M. The Most Important Causes of Death in Iranian Population; a Retrospective Cohort Study. EMERGENCY (TEHRAN, IRAN) 2015; 3:16-21. [PMID: 26512364 PMCID: PMC4614603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Health care providers and health policy managers need updated and valid information regarding causes of death (COD) for development the health care facilities, directing primary prevention, assigning funds, and promoting public health. The major causes of death and its burden have not been yet appropriately identified in Iran. Although several studies had been carried out in this area, most of them were local or performed in the past years and need to be update. Thus, the present study aimed to address the major causes of death and its burden in Iran. METHODS The present cross-sectional study was performed on graduate students and their families from February to March 2014. Through a two-stage random sampling procedure, data on 11315 subjects were obtained. The corresponding age of death, gender, and calendar year of death were inquired. All causes of death were categorized in nine groups including major cardiovascular disease, cancers, motor vehicle accidents, unintentional injuries, intentional injuries, stroke, lower respiratory infections, diabetes, and other reasons. Years of life lost (YLL) and person years of life lost were computed as the burden of diseases. RESULTS Totally, 11315 (50.4% male) subjects were studied. The results regarding death of relatives revealed that 360 deaths occurred (66.9% male). COD in 95 cases (26.4%) was cardiovascular diseases, 64 (17.8%) motor vehicle accidents, 41 (11.4%) cancers, 23 (6.4%) unintentional injuries, 22 (6.1%) intentional injuries, 10 (2.8%) stroke, 8 (2.2%) lower respiratory infections, 6 (1.8%) diabetes, and 91 (25.3%) other reasons. The average YLL due to all COD was 34.4±18.5. YLL for motor vehicle accidents and injuries (unintentional and intentional) were higher than cardiovascular diseases (p<0.001). In addition, person years of life lost for motor vehicle accidents were 2613.1 years. Cardiovascular diseases (2159.4 years), cancers (1321.0 years), and unintentional injuries (990.4 years) were in the next ranks. CONCLUSION Based on the findings, it seems that cardiovascular diseases, motor vehicle accidents, cancers, intentional and unintentional injuries are the major causes of death in Iranian population. Most of years of life lost were due to motor vehicle accidents, cardiovascular diseases and cancers, intentional and unintentional injuries, respectively.
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Affiliation(s)
- Soheil Saadat
- Sina Trauma and Surgery Research Center, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Yousefifard
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hadi Asady
- Department of Occupational Health Engineering, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Moghadas Jafari
- Department of Emergency Medicine, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran.
| | - Mohammad Fayaz
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Hosseini
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Corresponding Author: Mostafa Hosseini; Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Poursina Avenue, Tehran, Iran. Tel/Fax: +982188989125;
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21
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Galsky MD, Oh WK. Mind the gap: Efficacy versus effectiveness and pivotal prostate cancer clinical trial demographics. Cancer 2014; 120:2944-5. [DOI: 10.1002/cncr.28808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 05/07/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Matthew D. Galsky
- Department of Medicine, Division of Hematology/Oncology, Tisch Cancer Institute; Icahn School of Medicine at Mount Sinai; New York New York
| | - William K. Oh
- Department of Medicine, Division of Hematology/Oncology, Tisch Cancer Institute; Icahn School of Medicine at Mount Sinai; New York New York
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Affiliation(s)
- L Joseph Su
- Division of Cancer Control & Population Sciences, National Cancer Institute, 9609 Medical Center Drive, Room 4E212, Rockville, MD 20850, USA
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23
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Bae JM, Li ZM, Shin MH, Kim DH, Lee MS, Ahn YO. Cigarette smoking and prostate cancer risk: negative results of the Seoul Male Cancer Cohort Study. Asian Pac J Cancer Prev 2014; 14:4667-9. [PMID: 24083722 DOI: 10.7314/apjcp.2013.14.8.4667] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
We evaluated cigarette smoking as a risk factor for prostate cancer in a prospective, population-based cohort study. The subjects were 14,450 males among the participants in the Seoul Male Cancer Cohort Study who had at least 1-year follow-up. They were followed up between 1993 and 2008. During the 16-year follow-up period, 87 cases of prostate cancer occurred over the 207,326 person-years of the study. The age-adjusted relative risks of past and current smokers at entry were 0.60 (95%CI: 0.34-1.06) and 0.70 (95%CI: 0.43-1.13), respectively, suggesting that cigarette smoking may not be a risk factor for prostate cancer. The relationship between prostate cancer and other modifiable factors, such as Westernized diet, should be studied with the goal of establishing prevention programs for prostate cancer.
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Affiliation(s)
- Jong-Myon Bae
- Department of Preventive Medicine, Jeju National University, School of Medicine, Jeju, China E-mail :
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24
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Folate intake and the risk of prostate cancer: a systematic review and meta-analysis. Prostate Cancer Prostatic Dis 2014; 17:213-9. [PMID: 24819234 DOI: 10.1038/pcan.2014.16] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 01/18/2014] [Accepted: 03/24/2014] [Indexed: 12/31/2022]
Abstract
There is conflicting evidence regarding the role of folate on the risk of developing prostate cancer. We performed a systematic review and quantitative meta-analysis of folate blood levels and folate intake, and the risk of prostate cancer. Four electronic databases (Medline, PubMed, Embase and Current Contents Connect) were searched to 11 October 2013, with no language restrictions for observational studies that measured folate intake or blood levels and the risk of prostate cancer. Pooled odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated using a random effects model. The dietary folate meta-analysis comprising 11 studies with 15 336 cases and a total sample size of 146 782 found no statistically significant association with prostate cancer, with an OR of 0.97 (95% CI 0.89-1.06). The total folate meta-analysis comprising of 5 studies with 7114 cases and a total sample size of 93 781 also found no statistically significant association with prostate cancer, with an OR of 0.99 (95% CI 0.82-1.19). The blood folate meta-analysis comprising of seven studies with 6122 cases and a total sample size of 10 232 found an increased risk of prostate cancer with high blood folate levels, with an OR of 1.43 (95% CI 1.06-1.93). There was significant heterogeneity (I(2)=79.5%, P<0.01). Removal of an outlier study removed the heterogeneity (I(2)=0.0%, P=0.54) and the association remained significant with an OR of 1.14 (95% CI 1.02-1.28). Dietary and total folate intake do not appear to be significantly associated with the risk of prostate cancer. High blood folate levels are associated with an increased risk of prostate cancer. These conclusions are limited by the predominance of included studies originating from developed countries with mostly Caucasian populations. Further research in populations with a high prevalence of non-Caucasian backgrounds is needed.
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Abstract
Universal screening for prostate cancer (Pca) using prostate-specific antigen-based testing is not recommended, as the potential harms of screening (overdiagnosis and overtreatment) outweigh potential benefits. The case for Pca screening requires a paradigm shift, which emphasizes the risks of screening over the risks of undetected cancer. Physicians are encouraged to use shared decision making with patients who express an interest in Pca screening, taking into account both the patient's screening preferences and individual risk profile. New models of care informed by the Patient Protection and Affordable Care Act are intended to assist clinicians in providing recommended preventive services.
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26
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Darves-Bornoz A, Park J, Katz A. Prostate Cancer Epidemiology. Prostate Cancer 2014. [DOI: 10.1002/9781118347379.ch1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Daniels G, Pei Z, Logan SK, Lee P. Mini-review: androgen receptor phosphorylation in prostate cancer. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2013; 1:25-29. [PMID: 25374897 PMCID: PMC4219286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 12/15/2013] [Indexed: 06/04/2023]
Abstract
Androgen receptor (AR) plays an important role in the tumorigenesis and progression of prostate cancer (PCa), and is the primary therapeutic target for PCa treatment. AR activity can be regulated via phosphorylation at multiple phosphorylation sites within the protein. Modifications by phosphorylation alter AR function, including its cellular localization, stability and transcriptional activity, ultimately leading to changes in cancer cell biology and disease progression. Here we present a brief overview of AR phosphorylation sites in PCa, focusing on functional roles of phospho-AR (p-AR) species, relevance in PCa disease progression, and potential as biomarkers and/or therapeutic targets through the use of kinase inhibitors. Additionally, recent evidence has shown the important role of AR activity in the cancer associated stroma on PCa growth and progression. The phosphorylation status of epithelial and stromal AR may be distinct; however, the current data available on stromal AR phosphorylation is limited. Further research will determine global view on the synergistic effects of phosphorylation across multiple AR sites in both epithelial and stromal cells and validate whether together they can be used as prognostic markers and/or effective therapeutic targets for PCa.
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Affiliation(s)
- Garrett Daniels
- Department of Pathology, New York University School of MedicineNew York, NY, USA
| | - Zhiheng Pei
- Department of Pathology, New York University School of MedicineNew York, NY, USA
- NYU Cancer Institute, New York University School of MedicineNew York, NY, USA
- New York Harbor Healthcare System, New York University School of MedicineNew York, NY, USA
| | - Susan K Logan
- Department of Urology, New York University School of Medicine, New YorkNY, USA
- Department of Pharmacology, New York University School of MedicineNew York, NY, USA
- NYU Cancer Institute, New York University School of MedicineNew York, NY, USA
| | - Peng Lee
- Department of Pathology, New York University School of MedicineNew York, NY, USA
- Department of Urology, New York University School of Medicine, New YorkNY, USA
- NYU Cancer Institute, New York University School of MedicineNew York, NY, USA
- New York Harbor Healthcare System, New York University School of MedicineNew York, NY, USA
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Xiao H, Tan F, Goovaerts P, Ali A, Adunlin G, Gwede CK, Huang Y. Multilevel Factors Associated With Overall Mortality for Men Diagnosed With Prostate Cancer in Florida. Am J Mens Health 2013; 8:316-26. [PMID: 24297455 DOI: 10.1177/1557988313512862] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
To identify individual and contextual factors contributing to overall mortality among men diagnosed with prostate cancer in Florida, a random sample of patients (between October 1, 2001, and December 31, 2007) was taken from the Florida Cancer Data System. Patient's demographic and clinical information were obtained from the Florida Cancer Data System. Comorbidity was computed following the Elixhauser Index method. Census-tract-level socioeconomic status and farm house presence were extracted from Census 2000 and linked to patient data. The ratio of urologists and radiation oncologists to prostate cancer cases at the county level was computed. Multilevel logistic regression was conducted to identify significance of individuals and contextual factors in relation to overall mortality. A total of 18,042 patients were identified, among whom 2,363 died. No racial difference was found in our study. Being older at diagnosis, unmarried, current smoker, uninsured, diagnosed at late stage, with undifferentiated, poorly differentiated, or unknown tumor grade were significantly associated with higher odds of overall mortality. Living in a low-income area was significantly associated with higher odds of mortality (p = .0404). After adjusting for age, stage, and tumor grade, patients who received hormonal, combination of radiation with hormone therapy, and no definitive treatment had higher odds of mortality compared with those who underwent surgery only. A large number of comorbidities were associated with higher odds of mortality. Although disease-specific mortality was not examined, our findings suggest the importance of careful considerations of patient sociodemographic characteristics and their coexisting conditions in treatment decision making, which in turn affects mortality.
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Affiliation(s)
- Hong Xiao
- Florida A&M University, Tallahassee, FL, USA
| | - Fei Tan
- Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
| | | | - Askal Ali
- Florida A&M University, Tallahassee, FL, USA
| | | | - Clement K Gwede
- H. Lee Moffitt Cancer Center & Research Institute, and University of South Florida, Tampa, FL, USA
| | - Youjie Huang
- Florida Department of Health, Tallahassee, FL, USA
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Bouchbika Z, Haddad H, Benchakroun N, Eddakaoui H, Kotbi S, Megrini A, Bourezgui H, Sahraoui S, Corbex M, Harif M, Benider A. Cancer incidence in Morocco: report from Casablanca registry 2005-2007. Pan Afr Med J 2013; 16:31. [PMID: 24570792 PMCID: PMC3932129 DOI: 10.11604/pamj.2013.16.31.2791] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 07/16/2013] [Indexed: 11/11/2022] Open
Abstract
INTRODUCTION Few population-based cancer registries are in place in developing countries. In order to know the burden of cancer in Moroccan population, cancer registry initiative was put in place in the Casablanca district, the biggest city of Morocco. METHODS The data collected covers 3.6 millions inhabitant and included Casablanca city and the administrative region. RESULTS The data collected in the years 2005-07 show that the top 5 forms of cancers in women were breast (ASR: 36.4 per 100,000), cervical (15.0), thyroid (6.7), colon-rectum (5.8), and ovarian (5.3); the top 5 cancers in men were lung (25.9), prostate (13.5), bladder (8.7), colon-rectum (8.1) and non-Hodgkin lymphoma (7.2). Tumours of haematopoietic and lymphoid tissues represented 11% of all cancers (skin excluded); some presented unusual sex ratios. For breast, cervical, colorectal and thyroid cancer, respectively 57%, 42%, 28% and 60% of the cases were under 50 years of age. This was attributable to particularly low numbers of cases recorded among old people, and the young age of the general population; the observed age-specific incidences under age 50 were not higher than in western countries. Cancers at young ages were particularly common in women: 67% of the cases were under 50. Stage at diagnosis could be obtained for 82% of the breast cancer cases and was as follows: 28% local, 63% regional and 9% distant, in the absence of screening. CONCLUSION These first population-based data have provided an invaluable resource for the national cancer control plan of Morocco, and will be useful tool to its future evaluation.
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Affiliation(s)
- Zineb Bouchbika
- Department of Radiotherapy-oncology, Ibn Rochd University Hospital, Casablanca, Hassan II University, Morocco
| | - Houssam Haddad
- Department of Radiotherapy-oncology, Ibn Rochd University Hospital, Casablanca, Hassan II University, Morocco
| | - Nadia Benchakroun
- Department of Radiotherapy-oncology, Ibn Rochd University Hospital, Casablanca, Hassan II University, Morocco
| | - Houda Eddakaoui
- Department of Radiotherapy-oncology, Ibn Rochd University Hospital, Casablanca, Hassan II University, Morocco
| | - Souad Kotbi
- Registry team, Regional Directorate of Health of Casablanca, Morocco
| | - Anis Megrini
- Registry team, Regional Directorate of Health of Casablanca, Morocco
| | - Hanane Bourezgui
- Department of Radiotherapy-oncology, Ibn Rochd University Hospital, Casablanca, Hassan II University, Morocco
| | - Souha Sahraoui
- Department of Radiotherapy-oncology, Ibn Rochd University Hospital, Casablanca, Hassan II University, Morocco
| | - Marilys Corbex
- Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium
| | - Mhamed Harif
- Centre Hospitalier Mohammed VI, Marrakech, Morocco
| | - Abdellatif Benider
- Department of Radiotherapy-oncology, Ibn Rochd University Hospital, Casablanca, Hassan II University, Morocco
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Arab L, Su J, Steck SE, Ang A, Fontham ETH, Bensen JT, Mohler JL. Adherence to World Cancer Research Fund/American Institute for Cancer Research Lifestyle Recommendations Reduces Prostate Cancer Aggressiveness Among African and Caucasian Americans. Nutr Cancer 2013; 65:633-43. [DOI: 10.1080/01635581.2013.789540] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Imam MH, Shenoy PJ, Flowers CR, Phillips A, Lechowicz MJ. Incidence and survival patterns of cutaneous T-cell lymphomas in the United States. Leuk Lymphoma 2013; 54:752-9. [PMID: 23004352 DOI: 10.3109/10428194.2012.729831] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Using the United States Surveillance, Epidemiology and End Results (SEER) 17 dataset, we examined incidence and survival patterns for patients with cutaneous T-cell lymphomas (CTCLs) diagnosed following institution of the World Health Organization-European Organisation for Research and Treatment of Cancer (WHO-EORTC) classification. From 2005 to 2008, 2273 cases of CTCL were diagnosed. The age-adjusted incidence rate per 100,000 person-years for mycosis fungoides (MF) was 0.55 and for Sézary syndrome (SS) was 0.01. Incidence was higher among males (MF/SS male-to-female incidence rate ratio [IRR] 1.57) and black patients (MF black-to-white IRR 1.55). Black patients with CTCL were diagnosed at a younger age and black patients with MF/SS presented with advanced stage and had worse survival than white patients. In multiple-variable Cox-regression models, age > 60 (hazard ratio [HR] 4.78, 95% confidence interval [CI] 2.97-7.70), black race (HR 2.09, 95% CI 1.29-3.37) and advanced stage (HR 6.06, 95% CI 3.66-10.05) predicted worse survival for patients with MF/SS. Additional research identifying reasons for these differences are necessary to better understand these diseases and for new strategies in the treatment of CTCL.
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Abstract
Despite efforts to reduce disparities in cancer outcomes among vulnerable populations, certain subgroups do not experience the gains made in the reduction of cancer incidence and mortality. In this article, we review recent trial data reporting on patient-, physician-, and system-centered interventions to improve quality and reduce disparities in cancer care spanning patient navigation to health reform. We conclude with data from a state that implemented a multitiered approach, targeting patient and systems barriers, that serves as a guide for future endeavors.
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Affiliation(s)
- Nina A Bickell
- From the Mount Sinai School of Medicine, New, NY; Ohio State University, Columbus, OH
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Wagner SE, Bauer SE, Bayakly AR, Vena JE. Prostate cancer incidence and tumor severity in Georgia: descriptive epidemiology, racial disparity, and geographic trends. Cancer Causes Control 2012. [DOI: 10.1007/s10552-012-0101-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Wolin KY, Stoll C. Physical activity and urologic cancers. Urol Oncol 2012; 30:729-34. [DOI: 10.1016/j.urolonc.2012.07.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2011] [Revised: 08/06/2012] [Accepted: 08/06/2012] [Indexed: 01/06/2023]
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Liang Y, Du F, Thompson IM, Turner BJ. Limited PSA testing in indigent men in South Texas: an appropriate care or missing a prevention opportunity? Cancer Epidemiol Biomarkers Prev 2012; 21:1489-96. [PMID: 22822113 DOI: 10.1158/1055-9965.epi-12-0497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND No previous study has examined racial ethnic differences in prostate-specific antigen (PSA) testing and followup in primary care practices serving an indigent population. METHODS From electronic medical records of primary care practices affiliated with one health care system in San Antonio, we identified 9,267 men aged 50 to 74 with 2+ clinic visits from 2008 through 2010 and no prior prostate cancer diagnosis. Logistic regression was used to examine the association of race ethnicity with the use of PSA testing and, if tested, with an abnormal result (≥4 ng/mL) adjusted for demographics, health care, and clinical factors. Time to a follow-up activity after an abnormal PSA was assessed using Cox proportional models. RESULTS The race ethnicity of this cohort was 63% Hispanic, 27% non-Hispanic white, 7% African-American, and 3% other. In a 3-year period, 26.8% of men had at least one PSA test. Compared with African-Americans, non-Hispanic whites were less likely to be tested [OR, 0.68; 95% confidence interval (CI), 0.55-0.83] but Hispanics did not differ (OR = 0.95; 95% CI 0.79-1.15). African-Americans were more likely to have an abnormal PSA than others (12.4% vs. 5.2%, P < 0.001) and the shortest adjusted time to follow-up (P = 0.004). CONCLUSIONS In this 3-year indigent cohort, about one quarter had a PSA test, approximately half of the national testing rate. IMPACT African-Americans were more likely to be tested than non-Hispanic whites but had more abnormal results, raising concerns about missed prevention opportunities. African-Americans with high PSA results had the shortest time until follow-up, reflecting awareness of the threat of prostate cancer for African-Americans by physicians.
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Affiliation(s)
- Yuanyuan Liang
- Department of Epidemiology and Biostatistics, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.
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Taksler GB, Keating NL, Cutler DM. Explaining racial differences in prostate cancer mortality. Cancer 2012; 118:4280-9. [PMID: 22246942 DOI: 10.1002/cncr.27379] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 10/03/2011] [Accepted: 11/10/2011] [Indexed: 11/07/2022]
Abstract
BACKGROUND In the United States, black males have an annual death rate from prostate cancer that is 2.4 times that of white males. The reasons for this are poorly understood. METHODS Using the Surveillance, Epidemiology, and End Results-Medicare database, 77,038 black and white males aged >65 years were identified with a first primary diagnosis of prostate cancer between 1995 and 2005, as well as 49,769 controls. The racial gap in mortality was decomposed to differential incidence and stage-specific prostate cancer mortality. The importance of various clinical and socioeconomic factors to each of these components was then examined. RESULTS The estimated mortality gap for prostate cancer-specific mortality was 1320 more cases per 100,000 males among black than white men. This gap was due to higher prostate cancer incidence among black males (76%) and higher stage-specific mortality once diagnosed (24%). Differences in prostate-specific antigen testing, comorbidities, and income explained 29% of the difference in metastatic cancer incidence but none of the racial gap for local/regional incidence. Conditional on diagnosis, tumor characteristics explained 50% of the racial gap, comorbidities an additional 4%, choice of treatment and physician 17%, and socioeconomic factors 15%. Overall, approximately 25% of the racial gap in mortality and 86% of the gap in mortality conditional on diagnosis could be explained. CONCLUSIONS More frequent prostate-specific antigen testing for black and low-income males could potentially reduce the prostate cancer mortality gap through earlier diagnosis of tumors that otherwise may become metastatic. More aggressive treatment of prostate cancer, especially in poor communities, might also reduce the gap.
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Affiliation(s)
- Glen B Taksler
- Department of Medicine, New York University School of Medicine, New York, New York, USA
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Potential for prostate cancer prevention through physical activity. World J Urol 2011; 30:167-79. [DOI: 10.1007/s00345-011-0812-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Accepted: 12/10/2011] [Indexed: 02/05/2023] Open
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Verma M, Patel P, Verma M. Biomarkers in prostate cancer epidemiology. Cancers (Basel) 2011; 3:3773-98. [PMID: 24213111 PMCID: PMC3763396 DOI: 10.3390/cancers3043773] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 09/26/2011] [Accepted: 09/26/2011] [Indexed: 01/09/2023] Open
Abstract
Understanding the etiology of a disease such as prostate cancer may help in identifying populations at high risk, timely intervention of the disease, and proper treatment. Biomarkers, along with exposure history and clinical data, are useful tools to achieve these goals. Individual risk and population incidence of prostate cancer result from the intervention of genetic susceptibility and exposure. Biochemical, epigenetic, genetic, and imaging biomarkers are used to identify people at high risk for developing prostate cancer. In cancer epidemiology, epigenetic biomarkers offer advantages over other types of biomarkers because they are expressed against a person's genetic background and environmental exposure, and because abnormal events occur early in cancer development, which includes several epigenetic alterations in cancer cells. This article describes different biomarkers that have potential use in studying the epidemiology of prostate cancer. We also discuss the characteristics of an ideal biomarker for prostate cancer, and technologies utilized for biomarker assays. Among epigenetic biomarkers, most reports indicate GSTP1 hypermethylation as the diagnostic marker for prostate cancer; however, NKX2-5, CLSTN1, SPOCK2, SLC16A12, DPYS, and NSE1 also have been reported to be regulated by methylation mechanisms in prostate cancer. Current challenges in utilization of biomarkers in prostate cancer diagnosis and epidemiologic studies and potential solutions also are discussed.
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Affiliation(s)
- Mukesh Verma
- Epidemiology and Genetics Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, National Institues of Health (NIH), 6130 Executive Blvd., Rockville, MD 20852, USA; E-Mail:
| | - Payal Patel
- Epidemiology and Genetics Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, National Institues of Health (NIH), 6130 Executive Blvd., Rockville, MD 20852, USA; E-Mail:
| | - Mudit Verma
- Laboratory of Cancer Biology and Genetics, Clinical Research Center, National Cancer Institute, National Institues of Health (NIH), 9000 Rockville Pike, Bethesda, MD 20892, USA; E-Mail:
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Wallace TA, Martin DN, Ambs S. Interactions among genes, tumor biology and the environment in cancer health disparities: examining the evidence on a national and global scale. Carcinogenesis 2011; 32:1107-21. [PMID: 21464040 DOI: 10.1093/carcin/bgr066] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cancer incidence and mortality rates show great variations across nations and between population groups. These variations are largely explained by differences in age distribution, diet and lifestyle, access to health care, cultural barriers and exposure to carcinogens and pathogens. Cancers caused by infections are significantly more common in developing than developed countries, and they overproportionally affect immigrant populations in the USA and other countries. The global pattern of cancer is not stagnant. Instead, it is dynamic because of fluctuations in the age distribution of populations, improvements in cancer prevention and early detection in affluent countries and rapid changes in diet and lifestyle in parts of the world. For example, increased smoking rates have caused tobacco-induced cancers to rise in various Asian countries, whereas reduced smoking rates have caused these cancers to plateau or even begin to decline in Western Europe and North America. Some population groups experience a disproportionally high cancer burden. In the USA and the Caribbean, cancer incidence and mortality rates are excessively high in populations of African ancestry when compared with other population groups. The causes of this disparity are multifaceted and may include tumor biological and genetic factors and their interaction with the environment. In this review, we will discuss the magnitude and causes of global cancer health disparities and will, with a focus on African-Americans and selected cancer sites, evaluate the evidence that genetic and tumor biological factors contribute to existing cancer incidence and outcome differences among population groups in the USA.
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Affiliation(s)
- Tiffany A Wallace
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4258, USA
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