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Li YD, Gao L, Gou YQ, Tan W, Liu C. Age of menarche and primary bladder cancer risk: A meta-analysis and systematic review. Urol Oncol 2022; 40:346.e17-346.e26. [DOI: 10.1016/j.urolonc.2022.02.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/20/2022] [Accepted: 02/28/2022] [Indexed: 10/18/2022]
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Lujan-Barroso L, Botteri E, Caini S, Ljungberg B, Roswall N, Tjønneland A, Bueno-de-Mesquita B, Gram IT, Tumino R, Kiemeney LA, Liedberg F, Stocks T, Gunter MJ, Murphy N, Cervenka I, Fournier A, Kvaskoff M, Häggström C, Overvad K, Lund E, Waaseth M, Fortner RT, Kühn T, Menéndez V, Sánchez MJ, Santiuste C, Perez-Cornago A, Zamora-Ros R, Cross AJ, Trichopoulou A, Karakatsani A, Peppa E, Palli D, Krogh V, Sciannameo V, Mattiello A, Panico S, van Gils CH, Onland-Moret NC, Barricarte A, Amiano P, Khaw KT, Boeing H, Weiderpass E, Duell EJ. Menstrual Factors, Reproductive History, Hormone Use, and Urothelial Carcinoma Risk: A Prospective Study in the EPIC Cohort. Cancer Epidemiol Biomarkers Prev 2020; 29:1654-1664. [PMID: 32467345 DOI: 10.1158/1055-9965.epi-20-0184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/07/2020] [Accepted: 05/19/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Urothelial carcinoma is the predominant (95%) bladder cancer subtype in industrialized nations. Animal and epidemiologic human studies suggest that hormonal factors may influence urothelial carcinoma risk. METHODS We used an analytic cohort of 333,919 women from the European Prospective Investigation into Cancer and Nutrition Cohort. Associations between hormonal factors and incident urothelial carcinoma (overall and by tumor grade, tumor aggressiveness, and non-muscle-invasive urothelial carcinoma) risk were evaluated using Cox proportional hazards models. RESULTS During a mean of 15 years of follow-up, 529 women developed urothelial carcinoma. In a model including number of full-term pregnancies (FTP), menopausal status, and menopausal hormone therapy (MHT), number of FTP was inversely associated with urothelial carcinoma risk (HR≥5vs1 = 0.48; 0.25-0.90; P trend in parous women = 0.010) and MHT use (compared with nonuse) was positively associated with urothelial carcinoma risk (HR = 1.27; 1.03-1.57), but no dose response by years of MHT use was observed. No modification of HRs by smoking status was observed. Finally, sensitivity analyses in never smokers showed similar HR patterns for the number of FTP, while no association between MHT use and urothelial carcinoma risk was observed. Association between MHT use and urothelial carcinoma risk remained significant only in current smokers. No heterogeneity of the risk estimations in the final model was observed by tumor aggressiveness or by tumor grade. A positive association between MTH use and non-muscle-invasive urothelial carcinoma risk was observed. CONCLUSIONS Our results support that increasing the number of FTP may reduce urothelial carcinoma risk. IMPACT More detailed studies on parity are needed to understand the possible effects of perinatal hormone changes in urothelial cells.
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Affiliation(s)
- Leila Lujan-Barroso
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), Gran Via de L'Hospitalet 199-203, L'Hospitalet de Llobregat, Barcelona, Spain.
- Bellvitge Biomedical Research Institute - IDIBELL, Gran Via de L'Hospitalet 199-203, L'Hospitalet de Llobregat, Barcelona, Spain
- Department of Nursing of Public Health, Mental Health and Maternity and Child Health School of Nursing, Universitat de Barcelona, Carrer de la Feixa Llarga s/n, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Edoardo Botteri
- Cancer Registry of Norway, Oslo University Hospital, Ullernchausseen 64, Oslo, Norway
- Norwegian National Advisory Unit for Women's Health, Women's Clinic, Oslo University Hospital, Sognsvannsveien 20, Oslo, Norway
| | - Saverio Caini
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Via Cosimo il Vecchio 2, Florence, Italy
| | - Börje Ljungberg
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden
| | - Nina Roswall
- Diet, Genes and Environment, Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen, Denmark
| | - Anne Tjønneland
- Diet, Genes and Environment, Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen, Denmark
- Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5, Copenhagen, Denmark
| | - Bas Bueno-de-Mesquita
- Department for Determinants of Chronic Diseases (DCD), National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
- Department of Gastroenterology and Hepatology, University Medical Centre, Utrecht, the Netherlands
- Department of Epidemiology and Biostatistics, The School of Public Health, Imperial College London, St Mary's Campus, Norfolk Place, London, United Kingdom
- Department of Social & Preventive Medicine, Faculty of Medicine, University of Malaya, Pantai Valley, Kuala Lumpur, Malaysia
| | - Inger T Gram
- Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Rosario Tumino
- Department of Cancer Registry and Histopathology, "Civic -M.P. Arezzo" Hospital, ASP Ragusa, Ragusa, Italy
| | - Lambertus A Kiemeney
- Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, the Netherlands
| | - Fredrik Liedberg
- Department of Urology, Skåne University Hospital and Institution of Translational Medicine, Lund University, Jan Waldenströms gata 5, Malmö, Sweden
| | - Tanja Stocks
- Department of Clinical Sciences Lund, Lund University, Barngatan 4, Lund, Sweden
| | - Marc J Gunter
- International Agency for Research on Cancer/World Health Organization, Lyon, France
| | - Neil Murphy
- International Agency for Research on Cancer/World Health Organization, Lyon, France
| | - Iris Cervenka
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) "Health across Generations" Team, Gustave Roussy 114 rue Edouard Vaillant, Villejuif, France
| | - Agnès Fournier
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) "Health across Generations" Team, Gustave Roussy 114 rue Edouard Vaillant, Villejuif, France
| | - Marina Kvaskoff
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) "Health across Generations" Team, Gustave Roussy 114 rue Edouard Vaillant, Villejuif, France
| | - Christel Häggström
- Department of Biobank Research, Umeå University, Umeå, Sweden
- Department of Surgical Sciences, Uppsala University, Akademiska sjukhuset entrence 70, Uppsala, Sweden
| | - Kim Overvad
- Department of Public Health, Section for Epidemiology, Aarhus University, Aarhus, Denmark
| | - Eiliv Lund
- Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Marit Waaseth
- Department of Pharmacy, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Renée Turzanski Fortner
- Division of Cancer Epidemiology, German Cancer Research Center (DFKZ), Im Neuenheimer Feld 280, Heidelberg, Germany
| | - Tilman Kühn
- Division of Cancer Epidemiology, German Cancer Research Center (DFKZ), Im Neuenheimer Feld 280, Heidelberg, Germany
| | - Virginia Menéndez
- Public Health Directorate, C/Ciriaco Miguel Virgil 9, Oviedo, Asturias, Spain
| | - Maria-Jose Sánchez
- Escuela Andaluza de Salud Pública (EASP), Cuesta del Observatorio 4, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Av. de las Fuerzas Armadas 2, Granada, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Av. Monforte de Lemos 3-5, Madrid, Spain
- Universidad de Granada, Av. del Hospicio 1, Granada, Spain
| | - Carmen Santiuste
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Av. Monforte de Lemos 3-5, Madrid, Spain
- Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Ronda de Levante 11, Murcia, Spain
| | - Aurora Perez-Cornago
- Cancer Epidemiology Unit, Nuffield Department of Population Health University of Oxford, Oxford, United Kingdom
| | - Raul Zamora-Ros
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), Gran Via de L'Hospitalet 199-203, L'Hospitalet de Llobregat, Barcelona, Spain
- Bellvitge Biomedical Research Institute - IDIBELL, Gran Via de L'Hospitalet 199-203, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Amanda J Cross
- Faculty of Medicine, Imperial College London, Norfolk Place, London, United Kingdom
| | | | - Anna Karakatsani
- Hellenic Health Foundation, Kaisareias 13 & Alexandroupoleos, Athens, Greece
- 2nd Pulmonary Medicine Department, School of Medicine, National and Kapodistrian University of Athens, "ATTIKON" University Hospital, Haidari, Greece
| | - Eleni Peppa
- Hellenic Health Foundation, Kaisareias 13 & Alexandroupoleos, Athens, Greece
| | - Domenico Palli
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Via Cosimo il Vecchio 2, Florence, Italy
| | - Vittorio Krogh
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumouri, Via Venezian 1, Milano, Italy
| | - Veronica Sciannameo
- Unit of Epidemiology, Regional Health Service ASL TO3, Grugliasco (Turin), Italy
| | - Amalia Mattiello
- Dipartimento di Medicina Clinica e Chirurgia, Federico II University, Via Pansini 5, Naples, Italy
| | - Salvatore Panico
- Dipartimento di Medicina Clinica e Chirurgia, Federico II University, Via Pansini 5, Naples, Italy
| | - Carla H van Gils
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - N Charlotte Onland-Moret
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Aurelio Barricarte
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Av. Monforte de Lemos 3-5, Madrid, Spain
- Navarra Public Health Institute, C/Leyre 15, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), C/Irunlarrea 3, Pamplona, Spain
| | - Pilar Amiano
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Av. Monforte de Lemos 3-5, Madrid, Spain
- Ministry of Health of the Basque Government, Public Health Division of Gipuzkoa, Biodonostia Research Institute, Paseo Doctor Begiristain s/N, 20014 Donostia/Gipuzkoa, Gipuzkoa, Spain
| | - Kay-Tee Khaw
- Department of Public Health and Primary Care, University of Cambridge School of Clinical Medicine, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - Heiner Boeing
- German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), Arthur-Scheunert-Allee 114 - 116, Nuthetal, Germany
| | - Elisabete Weiderpass
- International Agency for Research on Cancer/World Health Organization, Lyon, France
| | - Eric J Duell
- Unit of Biomarkers and Susceptibility, Oncology Data Analytics Program, Catalan Institute of Oncology (ICO), Gran Via de L'Hospitalet 199-203, 08908, L'Hospitalet de Llobregat, Barcelona, Spain
- ONCOBELL Program, Bellvitge Biomedical Research Institute (IDIBELL), Gran Via de L'Hospitalet 199-203, 08908, L'Hospitalet de Llobregat, Barcelona, Spain
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Bai Y, Wang X, Yang Y, Tang Y, Wang J, Han P. Parity and bladder cancer risk: a dose-response meta-analysis. BMC Cancer 2017; 17:31. [PMID: 28061845 PMCID: PMC5219774 DOI: 10.1186/s12885-016-3023-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 12/20/2016] [Indexed: 02/05/2023] Open
Abstract
Background Multiple studies have reported evidence of an inverse association between parity and bladder cancer risk. However, a comprehensive and quantitative assessment of this association has never been conducted. We conducted this study to clarify this issue. Methods Systematic search of PubMed and Embase was performed to identify all the studies. Studies were selected based on strict screening with inclusion and exclusion criteria. Summary relative risks (RR) with 95% confidence intervals (CI) were calculated by using a fixed-effect model, and the generalized least squares trend estimation was employed to compute study-specific RR and 95% CI per live birth increase. Heterogeneity and publication bias were also evaluated. Results Twelve studies (6,214 cases and 2,693,350 non-cases) were eligible in this meta-analysis. The pooled RR of bladder cancer for parous versus nulliparous women was 0.76 (95% CI: 0.70–0.82). Results were similar in the studies that adjusted for BMI(RR = 0.66; 95% CI: 0.53–0.81), cigarette smoking (RR = 0.67; 95% CI: 0.57–0.79), and age (RR = 0.77; 95% CI: 0.71–0.84). The dose-response meta-analysis showed a lower bladder cancer risk (RR = 0.95; 95% CI: 0.92–0.98) for each live birth increase in parous women. No evidence of publication bias or significant heterogeneity was detected in the above-mentioned analyses. Conclusions The finding from current meta-analysis suggest that parity may be related to decreased risk of bladder cancer. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-3023-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yunjin Bai
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang#37, Chengdu, Sichuan, 610041, China
| | - Xiaoming Wang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang#37, Chengdu, Sichuan, 610041, China
| | - Yubo Yang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang#37, Chengdu, Sichuan, 610041, China
| | - Yin Tang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang#37, Chengdu, Sichuan, 610041, China
| | - Jia Wang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang#37, Chengdu, Sichuan, 610041, China
| | - Ping Han
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang#37, Chengdu, Sichuan, 610041, China.
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Parity, Age at First Birth, and Risk of Death from Bladder Cancer: A Population-Based Cohort Study in Taiwan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13121197. [PMID: 27918463 PMCID: PMC5201338 DOI: 10.3390/ijerph13121197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/23/2016] [Accepted: 11/23/2016] [Indexed: 11/30/2022]
Abstract
The evidence is limited on the relationship between reproductive factors and bladder cancer (BC). We studied 1,292,462 women who had a first and singleton delivery between 1 January 1978 and 31 December 1987. Each woman in the study cohort was tracked from their first childbirth to 31 December 2009. Vital status of the women was determined by crosswalking records with a computerized mortality database. We used Cox proportional hazard regression models to estimate the hazard ratios (HRs) of death from BC associated with maternal age at first birth and parity. The data showed 63 BC deaths during 34,980,246 person-years of follow-up. BC mortality rate was 0.90 cases for every 100,000 person-years. Compared with women who gave birth under the age of 23, the adjusted HR was 1.24 (95% confidence interval (CI) = 0.66–2.35) for women who gave birth between age 23 and 26 and 2.30 (95% CI = 1.21–4.39) for women who gave birth over the age of 26. Increasing age at first birth (p for trend = 0.01) is associated with a trend in increasing risk of BC mortality. Relative to women who had a single childbirth, the adjusted HRs were 1.17 (95% CI = 0.51–2.69) for women who gave birth to two children, and 1.31 (95% CI = 0.56–3.10) for women with three or more childbirths, respectively. These results were not statistically significant. Study results suggests that giving birth at an early age may confer a protective effect on the risk of death from BC.
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Cherif M, Chakroun M, Bouzouita A, Dimassi H, Ayed H, Derouiche A, Ben Slama M, Chebil M. Caractéristiques épidémiologiques du cancer de la vessie chez la femme en Tunisie. AFRICAN JOURNAL OF UROLOGY 2016. [DOI: 10.1016/j.afju.2015.06.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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van Osch FH, Jochems SH, van Schooten FJ, Bryan RT, Zeegers MP. Quantified relations between exposure to tobacco smoking and bladder cancer risk: a meta-analysis of 89 observational studies. Int J Epidemiol 2016; 45:857-70. [PMID: 27097748 DOI: 10.1093/ije/dyw044] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Smoking is a major risk factor for bladder cancer (BC). This meta-analysis updates previous reviews on smoking characteristics and BC risk, and provides a more quantitative estimation of the dose-response relationship between smoking characteristics and BC risk. METHODS In total, 89 studies comprising data from 57 145 BC cases were included and summary odds ratios (SORs) were calculated. Dose-response meta-analyses modelled relationships between smoking intensity, duration, pack-years and cessation and BC risk. Sources of heterogeneity were explored and sensitivity analyses were conducted to test the robustness of findings. RESULTS Current smokers (SOR = 3.14, 95% CI = 2.53-3.75) and former smokers(SOR = 1.83, 95% CI = 1.52-2.14) had an increased risk of BC compared with never smokers. Age at first exposure was negatively associated with BC risk. BC risk increased gradually by smoking duration and a risk plateau at smoking 15 cigarettes a day and 50 pack-years was observed. Smoking cessation is most beneficial from 20 years before diagnosis. The population-attributable risk of BC for smokers has decreased from 50% to 43% in men and from 35% to 26% in women from Europe since estimated in 2000. Results were homogeneous between sources of heterogeneity, except for lower risk estimates found in studies of Asian populations. CONCLUSIONS Active smokers are at an increased risk of BC. Dose-response meta-analyses showed a BC risk plateau for smoking intensity and indicate that even after long-term smoking cessation, an elevated risk of bladder cancer remains.
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Affiliation(s)
- Frits Hm van Osch
- Department of Complex Genetics, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands, Department of Complex Genetics, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands,
| | - Sylvia Hj Jochems
- Department of Complex Genetics, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands, Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Frederik-Jan van Schooten
- Department of Pharmacology and Toxicology, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands and
| | - Richard T Bryan
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Maurice P Zeegers
- Department of Complex Genetics, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands, Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK, Department of Complex Genetics, CAPHRI School for Public Health and Primary Care, Maastricht University, Maastricht, The Netherlands
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Abstract
While smoking and exposure to certain chemicals are well-defined risk factors for bladder cancer, there is no consensus as to the roles of modifiable lifestyle factors, notably physical activity, and obesity. We evaluated associations of obesity and physical activity with bladder cancer risk by performing a system-wide search of PubMed for cohort and case-control studies focused on obesity, exercise, and bladder cancer. A total of 31 studies were identified that evaluated the associations of obesity and physical activity with bladder cancer risk: 20 focused on obesity, eight on physical activity, and three on both. There was marked heterogeneity in population composition and outcomes assessment. Fifteen (65%) of the obesity studies used prevalence or incidence as the primary outcome and seven (30%) used bladder cancer mortality. Ten (44%) observed positive and 13 (56%) null associations of obesity with bladder cancer. Three (100%) of three studies also noted strong positive associations of obesity with bladder cancer progression or recurrence. Ten (91%) of the physical activity studies analyzed prevalence or incidence and one (9%) mortality. One (9%) study observed positive, seven (64%) null, and three (27%) negative associations of physical activity with bladder cancer. Study heterogeneity precluded quantitative assessment of outcomes. Obesity is potentially associated with an increased risk of bladder cancer, particularly for progression, recurrence, or death. Further studies of physical activity and bladder cancer are needed to validate these observations and elucidate the associations of exercise with bladder cancer progression and mortality.
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Wu W, Tong Y, Zhao Q, Yu G, Wei X, Lu Q. Coffee consumption and bladder cancer: a meta-analysis of observational studies. Sci Rep 2015; 5:9051. [PMID: 25761588 PMCID: PMC4356958 DOI: 10.1038/srep09051] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 02/16/2015] [Indexed: 12/19/2022] Open
Abstract
Controversial results of the association between coffee consumption and bladder cancer (BC) risk were reported among epidemiological studies. Therefore, we conducted this meta-analysis to clarify the association. Relevant studies were identified according to the inclusion criteria. Totally, 34 case-control studies and 6 cohort studies were included in our meta-analysis. The overall odds ratio (OR) with 95% confidence interval (CI) between coffee consumption and BC risk was 1.33 (95% CI 1.19 to 1.48). The summary ORs of BC for an increase of 1 cup of coffee per day were 1.05 (95% CI 1.03 to 1.06) for case-control studies and 1.03 (95% CI 0.99 to 1.06) for cohort studies. The overall ORs for male coffee drinkers, female coffee drinkers and coffee drinkers of both gender were 1.31 (95% CI: 1.08 to 1.59), 1.30 (95% CI: 0.87 to 1.96) and 1.35 (95% CI: 1.20 to 1.51). Compared with smokers (OR = 1.24, 95% CI: 0.91 to 1.70), non-smokers had a higher risk (OR = 1.72, 95% CI: 1.25 to 2.35) for BC. Results of this meta-analysis suggested that there was an increased risk between coffee consumption and BC. Male coffee drinkers and non-smoking coffee drinkers were more likely to develop BC.
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Affiliation(s)
- Weixiang Wu
- Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei. 430030, China
| | - Yeqing Tong
- Hubei provincial center for disease control and prevention
| | - Qiang Zhao
- Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei. 430030, China
| | - Guangxia Yu
- Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei. 430030, China
| | - Xiaoyun Wei
- Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei. 430030, China
| | - Qing Lu
- Key Laboratory of Environment and Health, Ministry of Education &Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei. 430030, China
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Clin B, Pairon JC. Medical follow-up for workers exposed to bladder carcinogens: the French evidence-based and pragmatic statement. BMC Public Health 2014; 14:1155. [PMID: 25377503 PMCID: PMC4230399 DOI: 10.1186/1471-2458-14-1155] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Accepted: 10/17/2014] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND The aim of this work was to establish recommendations for the medical follow-up of workers currently or previously exposed to carcinogenic substances for the bladder. METHODS A critical synthesis of the literature was conducted. Sectors of activity where workers are or were exposed to carcinogenic substances for the bladder were listed and classified according to the level of bladder cancer risk. Performances of techniques available for the targeted screening of bladder cancer were analysed, including a simulation of results among high-risk populations in France. RESULTS The risk level for the professional group and the latency period between the start of exposure and the natural history of the disease were selected to define a targeted screening protocol. The NMP22BC test, exclusive haematuria testing, and combinations of urine cytology with, respectively, the NMP22BC test and haematuria test, generated an extremely high proportion of false positive results. CONCLUSION Urine cytology is the test that offers the best specificity. Although poor for all bladder cancer stages and grades combined, its sensitivity is better for high grades, which require early diagnosis since late-stage cancers are of very poor prognosis. These results suggest that urine cytology is currently the only technique suitable for proposal within the context of a first line targeted screening strategy for occupational bladder cancer. An algorithm summarising the recommended medical follow-up for workers currently or previously exposed to carcinogenic substances for the bladder is proposed, based on the level of risk of bladder cancer.
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Affiliation(s)
- Bénédicte Clin
- />Cancers and prevention, U1086 INSERM, Faculty of Medicine, Caen University Hospital, Caen, France
- />Service de Santé au Travail et Pathologie Professionnelle (Occupational Health Department), C.H.U. (University Hospital) Côte de Nacre, 14033 CAEN Cedex, France
| | - “RecoCancerProf” Working Group
- />Cancers and prevention, U1086 INSERM, Faculty of Medicine, Caen University Hospital, Caen, France
- />Service de Santé au Travail et Pathologie Professionnelle (Occupational Health Department), C.H.U. (University Hospital) Côte de Nacre, 14033 CAEN Cedex, France
- />INSERM, Unité 955, Université Paris-Est Créteil, 94000 Créteil, France
- />Centre Hospitalier Intercommunal de Créteil, Service de Pneumologie et de Pathologie Professionnelle, 94000 Créteil, France
| | - Jean-Claude Pairon
- />INSERM, Unité 955, Université Paris-Est Créteil, 94000 Créteil, France
- />Centre Hospitalier Intercommunal de Créteil, Service de Pneumologie et de Pathologie Professionnelle, 94000 Créteil, France
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Yao B, Yan Y, Ye X, Fang H, Xu H, Liu Y, Li S, Zhao Y. Intake of fruit and vegetables and risk of bladder cancer: a dose-response meta-analysis of observational studies. Cancer Causes Control 2014; 25:1645-58. [PMID: 25248495 DOI: 10.1007/s10552-014-0469-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Accepted: 09/09/2014] [Indexed: 01/01/2023]
Abstract
BACKGROUND Observational studies suggest an association between fruit and vegetables intake and risk of bladder cancer, but the results are controversial. METHODS We therefore summarized the evidence from observational studies in categorical, linear, and nonlinear, dose-response meta-analysis. Pertinent studies were identified by searching EMBASE and PubMed from their inception to August 2013. RESULTS Thirty-one observational studies involving 12,610 cases and 1,121,649 participants were included. The combined rate ratio (RR, 95 % CI) of bladder cancer for the highest versus lowest intake was 0.83 (0.69-0.99) for total fruit and vegetables, 0.81 (0.70-0.93) for total vegetables, 0.77 (0.69-0.87) for total fruit, 0.84 (0.77-0.91) for cruciferous vegetables, 0.79 (0.68-0.91) for citrus fruits, and 0.74 (0.66-0.84) for yellow-orange vegetables. Subgroup analysis showed study design and gender as possible sources of heterogeneity. A nonlinear relationship was found of citrus fruits intake with risk of bladder cancer (P for nonlinearity = 0.018), and the RRs (95 % CI) of bladder cancer were 0.87 (0.78-0.96), 0.80 (0.67-0.94), 0.79 (0.66-0.94), 0.79 (0.65-0.96), and 0.79 (0.64-0.99) for 30, 60, 90, 120, and 150 g/day. A nonlinear relationship was also found of yellow-orange vegetable intake with risk of bladder cancer risk (P for nonlinearity = 0.033). Some evidence of publication bias was observed for fruit, citrus fruits, and yellow-orange vegetables. CONCLUSION This meta-analysis supports the hypothesis that intakes of fruit and vegetables may reduce the risk of bladder cancer. Future well-designed studies are required to confirm this finding.
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Affiliation(s)
- Baodong Yao
- Shanghai Minhang Center for Disease Control and Prevention, 965 Zhongyi Road, Shanghai, 201101, China
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11
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Barone-Adesi F, Richiardi L, Merletti F. Population Attributable Risk for Occupational Gancer in Italy. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH 2013; 11:23-31. [PMID: 15859187 DOI: 10.1179/oeh.2005.11.1.23] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Population studies estimating the proportion of cancer attributable to occupation (PAR) in different geographical areas in Italy are reviewed. Studies using lists of industrial activities and occupations which are known or suspected to entail exposure to lung carcinogens gave lung cancer PARs between 5% and 36%. Those using job-exposure matrices estimated PARs of 3%-53%, with most of the values ranging between 17 and 33%. For bladder cancer, PARs ranged between 4% and 24%. The uses and limitations of calculating population attribultable risk are discussed.
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12
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Childbearing and the Risk of Bladder Cancer: A Nationwide Population-based Cohort Study. Eur Urol 2013; 63:733-8. [DOI: 10.1016/j.eururo.2013.01.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 01/06/2013] [Indexed: 11/23/2022]
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13
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Daugherty SE, Lacey JV, Pfeiffer RM, Park Y, Hoover RN, Silverman DT. Reproductive factors and menopausal hormone therapy and bladder cancer risk in the NIH-AARP Diet and Health Study. Int J Cancer 2013; 133:462-72. [PMID: 23319449 DOI: 10.1002/ijc.28022] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 12/13/2012] [Indexed: 11/06/2022]
Abstract
The incidence of bladder cancer among women is at least one-third to one-fourth that observed among men in many countries. Even after accounting for known risk factors, the reason for this gender disparity remains unexplained. We conducted a comprehensive evaluation of reproductive factors and exogenous hormone use with a primary focus on menopausal hormone therapy use and risk of bladder cancer in women in the NIH-AARP Diet and Health Study. Reproductive and hormonal factors were ascertained on the baseline questionnaire in 1995-1996 among 201,492 females who were followed until December 31, 2006. During follow-up, 651 cases of bladder cancer were diagnosed. A subset of women provided detailed information on use of MHT in a second questionnaire in 1996-1997. In this analysis, 127,361 females were followed through June 30, 2002 and 198 incident bladder cancer cases were identified. Cox proportional hazard models, adjusted for smoking status, cigarettes per day and body mass index using age as the time metric, were used to obtain hazard ratios (HRs). A reduced risk was observed among parous women (HR=0.76; 95% CI 0.62-0.93) and women who reported late age at menarche (≥15 years) (HR=0.57; 95% CI 0.39-0.84). Women who reported ever using estrogen and progestin therapy had a decreased risk (HR=0.53; 95% CI: 0.34-0.83) compared with women who did not report MHT use. No association was observed for estrogen only users (HR=0.82; 95% CI: 0.58-1.15). Our results suggest a putative role for sex hormones in the etiology of bladder cancer among women.
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Affiliation(s)
- Sarah E Daugherty
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA.
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Cigarette Smoking Status at Diagnosis and Recurrence in Intermediate-risk Non–muscle-invasive Bladder Carcinoma. Urology 2013; 81:277-81. [DOI: 10.1016/j.urology.2012.09.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2012] [Revised: 08/31/2012] [Accepted: 09/03/2012] [Indexed: 11/23/2022]
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15
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Trends in Mortality From Urologic Cancers in Europe, 1970–2008. Eur Urol 2011; 60:1-15. [DOI: 10.1016/j.eururo.2011.03.047] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 03/25/2011] [Indexed: 12/31/2022]
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16
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Huang AT, Kogevinas M, Silverman DT, Malats N, Rothman N, Tardón A, Serra C, García-Closas R, Carrato A, Cantor KP. Bladder cancer and reproductive factors among women in Spain. Cancer Causes Control 2011; 20:1907-13. [PMID: 19568699 DOI: 10.1007/s10552-009-9384-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2009] [Accepted: 06/08/2009] [Indexed: 11/30/2022]
Abstract
Hormonal factors, possibly related to reproductive characteristics, may play a role in the risk of bladder cancer among women. To study this, we investigated the effects of reproductive factors on female bladder cancer risk. Information on reproductive and other risk factors was gathered in personal interviews from 152 female cases and 166 matched controls from 18 hospitals in five regions of Spain during 1998–2001. Logistic regression was used to estimate the association between bladder cancer and reproductive factors, including ever-parous status, age at first live birth, age at last live birth, age at menarche, age at menopause, menopausal status, and duration of menstruation. After adjustment for age, smoking, and high-risk occupation, ever-parous women were at decreased risk relative to nulliparous women (odds ratio = 0.43, 95% confidence interval = 0.21–0.87). There was no consistent pattern in risk with the age- or duration-related reproductive factors (e.g., age at first live birth, age at last live birth, age at menarche, age at menopause, menopausal status, and duration of menstruation) that we evaluated. Women have a lower risk of bladder cancer than men, and hormonal factors related to childbearing may play a role.
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Affiliation(s)
- An-Tsun Huang
- Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA.
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17
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Davis-Dao CA, Henderson KD, Sullivan-Halley J, Ma H, West D, Xiang YB, Gago-Dominguez M, Stern MC, Castelao JE, Conti DV, Pike MC, Bernstein L, Cortessis VK. Lower risk in parous women suggests that hormonal factors are important in bladder cancer etiology. Cancer Epidemiol Biomarkers Prev 2011; 20:1156-70. [PMID: 21493870 DOI: 10.1158/1055-9965.epi-11-0017] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Urinary bladder cancer is two to four times more common among men than among women, a difference in risk not fully explained by established risk factors. Our objective was to determine whether hormonal and reproductive factors are involved in female bladder cancer. METHODS We analyzed data from two population-based studies: the Los Angeles-Shanghai Bladder Cancer Study, with 349 female case-control pairs enrolled in Los Angeles and 131 female cases and 138 frequency-matched controls enrolled in Shanghai, and the California Teachers Study (CTS), a cohort of 120,857 women with 196 incident cases of bladder urothelial carcinoma diagnosed between 1995 and 2005. We also conducted a meta-analysis summarizing associations from our primary analyses together with published results. RESULTS In primary data analyses, parous women experienced at least 30% reduced risk of developing bladder cancer compared with nulliparous women (Shanghai: OR = 0.38, 95% CI: 0.13-1.10; CTS: RR = 0.69, 95% CI: 0.50-0.95) consistent with results of a meta-analysis of nine studies (summary RR = 0.73, 95% CI: 0.63-0.85). The CTS, which queried formulation of menopausal hormone therapy (HT), revealed a protective effect for use of combined estrogen and progestin compared with no HT (RR = 0.60, 95% CI: 0.37-0.98). Meta-analysis of three studies provided a similar effect estimate (summary RR = 0.65, 95% CI: 0.48-0.88). CONCLUSIONS A consistent pattern of reduced bladder cancer risk was found among parous women and those who used estrogen and progestin for HT. IMPACT These results suggest that more research is warranted to investigate hormonal and reproductive factors as possible contributors to bladder cancer risk.
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Affiliation(s)
- Carol A Davis-Dao
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
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Dietrich K, Demidenko E, Schned A, Zens MS, Heaney J, Karagas MR. Parity, early menopause and the incidence of bladder cancer in women: a case-control study and meta-analysis. Eur J Cancer 2010; 47:592-9. [PMID: 21067913 DOI: 10.1016/j.ejca.2010.10.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Revised: 10/06/2010] [Accepted: 10/11/2010] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Incidence rates of bladder cancer are notably higher in men than in women. While there is evidence that reproductive and hormonal risk factors may influence risk of bladder cancer, data are inconclusive. MATERIALS AND METHODS We examined reproductive, menstrual and hormonal use history in our population-based case-control study of bladder cancer in New Hampshire (NH), USA (n=207 women cases and n=463 women controls). Additionally, we performed a meta-analysis of the published literature. We used unconditional logistic regression analysis to compute adjusted odds ratios associated with each risk factor in the NH study. We combined these estimates with those from the published literature using inverse variance effects models. RESULTS In the NH study, a slightly decreased odds ratio was found among women who had ever had a birth compared to nulliparous women and an elevated odds ratio among women who underwent surgical menopause (bilateral oophorectomy), especially at an early age. No overall associations were found with oral contraceptive use or hormone replacement therapy. These findings were generally in agreement with the meta-analytic results for which the combined relative risk (RR) estimate was reduced among ever parous women (combined RR estimate for ever parous versus nulliparous=0.66, 95% confidence intervals [95% CI] 0.55-0.79) and elevated among those undergoing an early menopause (combined RR estimate for early versus late menopause=1.59, 95% CI 1.31-1.92). No consistent risk was observed for the other factors. DISCUSSION Some reproductive and menstrual factors appear to be related to the incidence of bladder cancer among women; but whether effects are due to female hormones is uncertain.
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Affiliation(s)
- K Dietrich
- Department of Community and Family Medicine, Section of Biostatistics and Epidemiology, 1 Medical Center Drive, Lebanon, NH 03756, USA
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19
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Wolpert BJ, Amr S, Ezzat S, Saleh D, Gouda I, Loay I, Hifnawy T, Mikhail NN, Abdel-Hamid M, Zhan M, Zheng YL, Squibb K, Abdel-Aziz MA, Zaghloul M, Khaled H, Loffredo CA. Estrogen exposure and bladder cancer risk in Egyptian women. Maturitas 2010; 67:353-7. [PMID: 20813471 DOI: 10.1016/j.maturitas.2010.07.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2010] [Revised: 07/22/2010] [Accepted: 07/24/2010] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To examine associations between reproductive history and urinary bladder cancer in Egyptian women. METHODS We used questionnaire data from an ongoing, multicenter case-control study in Egypt. Controls were matched on age and residence area. This analysis focused on female cases with confirmed urothelial (UC) and squamous cell (SCC) carcinoma of the bladder. RESULTS We recruited 779 women (540 controls, 239 cases; >98.0% nonsmokers). Younger age at menopause (<45 y) and older age at first pregnancy (>18 y) were factors significantly associated with increased risk of bladder cancer, even after adjusting for schistosomiasis history and other covariates in the multivariable logistic model; adjusted odds ratio and 95% confidence intervals were 1.98 (1.41, 2.77) and 6.26 (3.46, 11.34), respectively. On the other hand, multiple pregnancies or use of oral contraceptives were associated with decreased odds of having bladder cancer. Similar associations were observed with UC and SCC when analyzed separately; however, the magnitude of association with SCC was lower than with UC. CONCLUSION Our data suggest that early estrogen exposure, or the relative lack of it, plays a role in urinary bladder carcinoma development among Egyptian women.
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Affiliation(s)
- Beverly J Wolpert
- Department of Epidemiology and Preventive Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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20
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Lin J, Wang J, Greisinger AJ, Grossman HB, Forman MR, Dinney CP, Hawk ET, Wu X. Energy balance, the PI3K-AKT-mTOR pathway genes, and the risk of bladder cancer. Cancer Prev Res (Phila) 2010; 3:505-17. [PMID: 20354165 DOI: 10.1158/1940-6207.capr-09-0263] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We evaluated the association between energy balance and risk of bladder cancer and assessed the joint effects of genetic variants in the mammalian target of rapamycin (mTOR) pathway genes with energy balance. The study included 803 Caucasian bladder cancer patients and 803 healthy Caucasian controls matched to cases by age (+/-5 years) and gender. High energy intake [odds ratio, 1.60; 95% confidence interval (95% CI), 1.23-2.09] and low physical activity (odds ratio, 2.82; 95% CI, 2.10-3.79) were each associated with significantly increased risk of bladder cancer with dose-response pattern (P(trend) < 0.001). However, obesity (body mass index, > or =30) was not associated with the risk. Among 222 single nucleotide polymorphisms, 28 single nucleotide polymorphisms located in six genes of mTOR pathway were significantly associated with the risk. Further, the risk associated with high energy intake and low physical activity was only observed among subjects carrying a high number of unfavorable genotypes in the pathway. Moreover, when physical activity, energy intake, and genetic variants were analyzed jointly, the study population was clearly stratified into a range of low- to high-risk subgroups as defined energy balance status. Compared with subjects within the most favorable energy balance category (low energy intake, intensive physical activity, low number of unfavorable genotypes), subjects in the worst energy balance category (high energy intake, low physical activity, and carrying > or =7 unfavorable genotypes) had 21.93-fold increased risk (95% CI, 6.7-71.77). Our results provide the first strong evidence that physical activity, energy intake, and genetic variants in the mTOR pathway jointly influence bladder cancer susceptibility and that these results have implications for bladder cancer prevention.
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Affiliation(s)
- Jie Lin
- Department of Epidemiology, The University of Texas M.D. Anderson Cancer Center, 1155 Hermann Pressler Boulevard, Houston, TX 77030, USA
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21
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Bachand A, Mundt KA, Mundt DJ, Carlton LE. Meta-analyses of occupational exposure as a painter and lung and bladder cancer morbidity and mortality 1950-2008. Crit Rev Toxicol 2010; 40:101-25. [PMID: 20085479 DOI: 10.3109/10408440903352826] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The International Agency for Research on Cancer (IARC) classified occupational painting as a human carcinogen based on lung and bladder cancers; however, no specific exposures were implicated. The authors conducted comprehensive meta-analyses of the epidemiological literature on occupational painting and these cancers. The authors abstracted study results and confounder information, and used quantile plots and regression models to evaluate heterogeneity and publication bias. Summary risk estimates were derived and sensitivity analyses performed to evaluate smoking, socioeconomic status (SES), and exposure variables. Where applicable, a Bayesian approach was used to externally adjust for smoking, a major risk factor for both cancers. For lung cancer cohort mortality studies, publication bias and heterogeneity were seen, and earlier studies reported higher risk estimates than later studies. Overall lung cancer summary risk estimates were 1.29 for case-control and 1.22 and 1.36 for cohort morbidity and mortality studies, respectively, and risk estimates for bladder cancer were 1.28 for case-control and 1.14 and 1.27 for cohort morbidity and mortality studies, respectively (all statistically significant). Risks did not differ between painters and mixed occupations. Nonsignificant summary estimates resulted for lung and bladder cancers when controlling for SES, or externally adjusting for smoking in lung cancer studies. Summary risks varied by control source for case-control studies. Residual confounding by smoking and SES, lack of exposure group effect, and publication bias limit the ability of the meta-analyses to explain associations observed between occupational painting and lung and bladder cancers. Given the long latencies for lung and bladder cancers, these weak associations, if real, may not be elucidated through studies of occupational painting today.
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Affiliation(s)
- Annette Bachand
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado, USA
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22
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Abstract
Bladder cancer is common in the UK. Of all the aetiological factors associated with the development of the disease, cigarette smoking is the most important, in industrialized countries. It is estimated that 60% of all bladder cancers result from smoking. The management of bladder cancer is governed by specific guidelines. Superficial cancers are managed surgically with transurethral resection, while more aggressive tumours are managed with cystectomy (removal of the bladder). Additional treatment includes cytotoxic therapy with intravesical chemotherapy and immunotherapy agents. However, while treatments may be effective in reducing tumour recurrence, the side effects of treatments on the individual's quality of life can be devastating. This paper seeks to provide an overview of bladder cancer, namely how the disease presents and is subsequently treated. The role of smoking is discussed in relation to the development of bladder cancer. Also, whether health promotion and education are effective in increasing the individual's awareness of the dangers of smoking are explored.
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Abstract
Bladder cancer is a major health concern for older males in Western populations. About 30 years ago there was a suggestion that nutrition may have a role in the aetiology of the disease. Although the literature has been accumulating since then, owing to heterogeneity between studies results have often been inconsistent and unclear. The aim of this paper was to present an updated summary of the scientific evidence on the association between nutrition, total fluid intake and bladder cancer. A search of computerized databases, PubMed, ISI, Embase and Cochrane Library, was conducted to identify all epidemiological studies published between 1966 and October 2007. The level of scientific evidence for the various nutritional factors and total fluid intake was ranked according to the number of studies reporting a statistically significant association and the existence of mechanistic evidence. The levels of association were based on a ranking of statistically significant relative risks. Fruit and yellow-orange vegetables, particularly carrots and selenium, are probably associated with a moderately reduced risk of bladder cancer. Citrus fruits and cruciferous vegetables were also identified as having a possible protective effect. Possible risk factors are salted and barbecued meat, pork, total fat, pickled vegetables, salt, soy products, spices and artificial sweeteners. No clear association could be determined for beef, eggs, processed meats and total fluid intake. In conclusion, specific fruit and vegetables may act to reduce the risk of bladder cancer. Future studies on bladder cancer should investigate the effect of food categorization, amount and gender.
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Affiliation(s)
- Maree Brinkman
- Cancer Epidemiology Centre, The Cancer Council Victoria, Australia
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Abstract
The association between exposure to selected chemical carcinogens, occupations or industries and bladder cancer is well established, and it is estimated that 20-27% of bladder cancers are attributable to occupational exposures. The risk of bladder cancer stemming from an occupational exposure depends not only on compound carcinogenicity, exposure intensity and workplace characteristics, but also on individual susceptibility to these cancers. Regulatory controls in industrialized nations have resulted in a decreased burden of exposure to bladder carcinogens in the workplace. Unfortunately, the same is unlikely in many developing countries, where risky technologies may have been transferred from more developed countries, and where enforcement of regulations and worker protection are likely to be less stringent.
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Affiliation(s)
- George L Delclos
- Southwest Center for Occupational and Environmental Health, Division of Environmental and Occupational Health Sciences, The University of Texas School of Public Health, Houston, TX 77225, USA.
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25
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Hosseini SY, Safarinejad MR, Amini E, Hooshyar H. Opium consumption and risk of bladder cancer: A case-control analysis. Urol Oncol 2008; 28:610-6. [PMID: 19110453 DOI: 10.1016/j.urolonc.2008.10.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2008] [Revised: 10/12/2008] [Accepted: 10/14/2008] [Indexed: 01/29/2023]
Abstract
OBJECTIVE We evaluated the relationship between opium consumption and bladder cancer (BC) in a case-control study of an Iranian population. MATERIALS AND METHODS In a hospital-based case-control study of 179 patients with BC and 179 cancer-free controls frequency-matched by age, sex, and smoking status, we investigated the relationship between opium consumption and BC. A comprehensive epidemiologic interview was conducted on all participants to collect personal information, such as demographics and smoking status. RESULTS Overall, we found significant age, sex, cigarette smoking adjusted association between BC risk and opium consumption, [odds ratio (OR) = 4.60; 95% confidence interval (CI) = 3.53-6.28]. The elevated risk was more evident in older individuals (OR = 5.42; 95% CI, 4.12-7.28) than younger individuals (OR = 3.65; 95% CI, 2.76-4.76) (P = 0.01). Heavy smokers with the opium consumption exhibited a 6-fold elevated risk for BC (OR = 6.16; 95% CI, 3.34-8.32) (P = 0.0001). When stratified according to different grades of BC, a 3.4-fold increased risk was associated with the opium consumption in grade III with an OR of 3.44 (95% CI, 2.82-8.28) (P = 0.001). A similar but slightly higher risk was also seen in case of grade IV tumors (OR = 3.86; 95% CI, 2.14-10.16) (P = 0.001). Invasive bladder tumors were more common among the opiates users (OR = 2.6; 95% CI, 1.44-5.42) (P = 0.01). Cumulative risk of BC in women with opium consumption (OR = 4.10 95% CI, 3.54-5.88) (P = 0.001) was slightly less than in men (OR = 5.10 95% CI, 3.54-5.88) (P = 0.0001). Based on Pearson correlations, the risk of BC significantly correlated with opium dependence duration (r = 0.74, P = 0.001), type of opiate used (r = 0.65, P = 0.001), and simultaneous cigarette smoking (r = 0.74, P = 0.0001). CONCLUSION The results indicated that there is about 5-fold increase in risk of developing this cancer in the presence of opium consumption. Further research is needed to investigate the functional implications of the opium consumption in BC.
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Affiliation(s)
- Seyyed Yousof Hosseini
- Departments of Urology, Shaheed Modarress Hospital, and Urology and Nephrology Research Center, Shahid Beheshti University (MC), Teheran, Iran
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Koebnick C, Michaud D, Moore SC, Park Y, Hollenbeck A, Ballard-Barbash R, Schatzkin A, Leitzmann MF. Body mass index, physical activity, and bladder cancer in a large prospective study. Cancer Epidemiol Biomarkers Prev 2008; 17:1214-21. [PMID: 18483344 DOI: 10.1158/1055-9965.epi-08-0026] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Increased body size and lack of physical activity are associated with increased risk of several cancers, but the relations of body mass index (BMI) and physical activity to bladder cancer are poorly understood. We investigated the associations between BMI, physical activity, and bladder cancer in the NIH-AARP Diet and Health Study, a prospective cohort of 471,760 U.S. men and women, followed from 1995 to 2003. During 3,404,642 person-years of follow-up, we documented 1,719 incident cases of bladder cancer. Compared with normal weight, obesity was associated with an up to 28% increased risk for bladder cancer. The multivariate relative risks of bladder cancer for BMI values of 18.5 to 24.9 (reference), 25.0 to 29.9, 30.0 to 34.9, and >or=35 kg/m2 were 1.0, 1.15, 1.22, and 1.28 (95% confidence interval, 1.02-1.61; P trend = 0.028). The association between BMI and bladder cancer was consistent among subgroups defined by gender, education, smoking status, and other potential effect modifiers. In contrast, physical activity showed no statistically significant relation with bladder cancer. After multivariate adjustment, including BMI, the relative risks of bladder cancer for increasing frequency of physical activity [0 (reference), <1, 1-2, 3-4, and >or=5 times a week] were 1.0, 0.85, 0.89, 0.91, and 0.87 (95% confidence interval, 0.74-1.02; P trend = 0.358), respectively. In conclusion, these findings provide support for a modest adverse effect of adiposity on risk for bladder cancer. In contrast, our results do not suggest a relation between physical activity and bladder cancer.
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Affiliation(s)
- Corinna Koebnick
- Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, Maryland, USA
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27
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Larsson SC, Andersson SO, Johansson JE, Wolk A. Diabetes mellitus, body size and bladder cancer risk in a prospective study of Swedish men. Eur J Cancer 2008; 44:2655-60. [PMID: 18707871 DOI: 10.1016/j.ejca.2008.07.012] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2008] [Revised: 06/25/2008] [Accepted: 07/03/2008] [Indexed: 12/29/2022]
Abstract
Epidemiologic studies on diabetes and body size in relation to risk of bladder cancer have yielded inconsistent results. We examined prospectively the associations between a history of diabetes, height, weight, body mass index and waist circumference, and the incidence of bladder cancer in the Cohort of Swedish Men, a prospective study of 45,906 men aged 45-79 years at baseline. During follow-up from 1998 through December 2007, 414 incident cases of bladder cancer were ascertained. A history of diabetes was not associated with risk of bladder cancer (multivariate rate ratio=1.16; 95% confidence interval=0.81-1.64). Similarly, no associations were observed for height, weight, body mass index or waist circumference. These findings in men do not support a role for diabetes, height or excess body mass in the aetiology of bladder cancer.
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Affiliation(s)
- Susanna C Larsson
- Division of Nutritional Epidemiology, The National Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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Wilson RT, Donahue M, Gridley G, Adami J, El Ghormli L, Dosemeci M. Shared occupational risks for transitional cell cancer of the bladder and renal pelvis among men and women in Sweden. Am J Ind Med 2008; 51:83-99. [PMID: 18067176 PMCID: PMC2800169 DOI: 10.1002/ajim.20522] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Unlike cancer of the bladder, cancer of the renal pelvis is not considered an occupational cancer and little is known about risks among women. METHODS Using the Swedish national census and cancer registry-linked data (1971-1989), we identified transitional cell cancers of the renal pelvis (N = 1,374) and bladder (N = 21,591). Correlation between cancer sites for the standardized incidence ratios (SIR) were determined using Pearson's coefficient of the log SIR. Relative risks of job exposure matrix variables were calculated using Poisson regression. RESULTS Both cancer sites were significantly elevated among women and men employed in the machine/electronics industry, sedentary work, and indoor work, and men in the metal industry. The highest proportion of the bladder (12%) and renal pelvis (14%) cancers occurred among men employed in shop and construction metal work. Risks by industry were more correlated among women (r = 0.49, P = 0.002) than men (r = 0.24, P = 0.04). Cancers of the renal pelvis were elevated in several occupational and industry groups for which there was no elevated bladder cancer risk. CONCLUSION Cancers of the renal pelvis and bladder share common occupational risk factors that may be more frequent among women. In addition, there may be some jobs that pose an increased risk specifically for cancer of the renal pelvis but not bladder.
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Affiliation(s)
- Robin Taylor Wilson
- Penn State Cancer Institute, Penn State College of Medicine, Hershey, Pennsylvania 17033-0855, USA.
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Abstract
AIMS AND BACKGROUND To summarize risk factors for bladder cancer, emphasizing the role of recently established associations and to present some ongoing debates on the issue. METHODS A systematic literature search was performed using MEDLINE database on bladder cancer risk factors between January 1985 and June 2006 and by detailed examination of the references of original articles, reviews and monographs retrieved. RESULTS Cigarette smoking is recognized as the main cause of bladder cancer and accounts for about 50% of cases in developed countries. A strong link exists between the amount and duration of cigarette smoking. A high risk of bladder carcinoma has been observed in workers exposed to some aromatic amines. Based on these and other occupational risks, it has been estimated that 5-10% of bladder carcinomas in industrialized countries were due to exposures of occupational origin. Infectious agents have a major influence on bladder cancer risks in the areas of the world where Schistosoma haematobium infestation is endemic. Other potential risk factors for bladder cancer are other urinary tract infections and drinking tap water with chlorination by-products or arsenic. Exposure to certain drugs, like cyclophosphamide used in chemotherapy and heavy consumption of phenacetin-containing analgesics, has been shown to cause bladder cancer in humans. Total fluid intake and high consumption of fruits and vegetables are probably associated with a small decrease in risk. CONCLUSIONS Avoidance of tobacco smoking and incriminated occupational exposures, habitual intake of fresh fruits and vegetables, and prevention and control of urinary tract infections should be recommended for bladder cancer prevention. Further studies are required to assess the role of genetic polymorphisms and their modifying effect of lifestyle risk factors for bladder cancer occurrence and to evaluate the benefit of bladder cancer screening, particularly in those at high risk.
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Affiliation(s)
- Slavenka Janković
- Institute of Epidemiology, School of Medicine, University of Belgrade, Belgrade.
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Murta-Nascimento C, Schmitz-Dräger BJ, Zeegers MP, Steineck G, Kogevinas M, Real FX, Malats N. Epidemiology of urinary bladder cancer: from tumor development to patient’s death. World J Urol 2007; 25:285-95. [PMID: 17530260 DOI: 10.1007/s00345-007-0168-5] [Citation(s) in RCA: 157] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Urinary bladder cancer (UBC) ranks ninth in worldwide cancer incidence. It is more frequent in men than in women. We review the main established/proposed factors, both environmental and genetic, associated with bladder cancer etiology and prognosis. Data were extracted from previous reviews and original articles identified from PubMed searches, reference lists, and book chapters dealing with the reviewed topics. Evaluation and consensus of both the contribution of each factor in bladder cancer burden and the appropriateness of the available evidences was done during an ad hoc meeting held during the 18th Congress of the European Society for Urological Research. Cigarette smoking and specific occupational exposures are the main known causes of UBC. Phenacetin, chlornaphazine and cyclophosphamide also increase the risk of bladder cancer. Chronic infection by Schistosoma haematobium is a cause of squamous cell carcinoma of the bladder. NAT2 slow acetylator and GSTM1 null genotypes are associated with an increased risk of this cancer. Vegetables and fresh fruits protect against this tumor. Regarding prognosis, there is little knowledge on the predictive role of environmental exposures and genetic polymorphisms on tumor recurrence and progression and patient's death. Although active tobacco smoking is the most commonly studied factor, no definitive conclusion can be drawn from the literature. More research is needed regarding the effect of complex etiological factors in bladder carcinogenesis. Subgroup analysis according to stage, grade, and molecular features may help in identifying specific etiological and prognostic factors involved in different bladder cancer progression pathways.
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Affiliation(s)
- Cristiane Murta-Nascimento
- Centre de Recerca en Epidemiologia Ambiental (CREAL), Institut Municipal d'Investigació Medica (IMIM), Carrer del Dr. Aiguader 88, 08003, Barcelona, Spain
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31
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Prizment AE, Anderson KE, Harlow BL, Folsom AR. Reproductive risk factors for incident bladder cancer: Iowa Women's Health Study. Int J Cancer 2007; 120:1093-8. [PMID: 17131327 DOI: 10.1002/ijc.22418] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We studied the association between reproductive factors and bladder cancer incidence in a prospective cohort study of 37,459 Iowa women aged 55-69 years and initially free from cancer in 1986. Women reported reproductive history and were followed prospectively through 2003. After adjusting for age and smoking, there was an inverse association between age at menopause and incident bladder cancer (n = 192). Compared with menopause at age > or =48, the hazard ratio (HR) of bladder cancer was 1.32 (95% CI; 0.90-1.94) for menopause at 43-47, and 1.60 (95% CI; 1.06-2.39) for < or =42 (p-trend = 0.02). The associations were similar for ages at natural and surgical menopause. In addition, women with a history of bilateral oophorectomy had an increased risk of bladder cancer compared with those who did not undergo bilateral oophorectomy: HR = 1.58 (95% CI; 1.12, 2.22). Finally, there was an indication of a positive association between bladder cancer and shorter lifetime years of ovulation (p-trend = 0.09). There were no associations between incident bladder cancer and age at first birth, number of births, age at menarche, use of hormone replacement therapy or any other reproductive characteristics. This study provides evidence that increased risk of bladder cancer is associated with earlier age at menopause in postmenopausal women.
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Affiliation(s)
- Anna E Prizment
- Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, MN 55454-1015, USA
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Holick CN, Giovannucci EL, Stampfer MJ, Michaud DS. Prospective study of body mass index, height, physical activity and incidence of bladder cancer in US men and women. Int J Cancer 2007; 120:140-6. [PMID: 17036323 DOI: 10.1002/ijc.22142] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We evaluated prospectively the association between body mass index (BMI), height, recreational physical activity and the risk of bladder cancer among US adults. Data were used from 2 ongoing cohorts, the Health Professionals Follow-up Study and the Nurses' Health Study, with 3,542,012 years of follow-up and 866 incident bladder cancer cases (men = 507; women = 359) for the anthropometric analysis and 1,890,476 years of follow-up and 706 incident bladder cancer cases (men = 502; women = 204) for the physical activity analysis. Cox proportional hazard models were used to estimate incidence rate ratios (RR) and 95% confidence intervals (CI) between BMI, height, physical activity and bladder cancer risk adjusting for age, pack-years of cigarette smoking and current smoking. Estimates from each cohort were pooled using a random-effects model. We observed no association between baseline BMI and bladder cancer risk, even when we compared a BMI of > or =30 kg/m(2) to a BMI of 18-22.9 kg/m(2) [pooled multivariate (MV) RR, 1.16; 95% CI: 0.89-1.52]. A weak, but statistically significant, association was observed for the same comparison after excluding bladder cancer cases diagnosed within the first 4 years of follow-up (pooled MV RR, 1.33; 95% CI: 1.01-1.76). Height was not related to bladder cancer risk (pooled MV RR, 0.82; 95% CI: 0.65-1.03, top vs. bottom quintile). Total recreational physical activity also was not associated with the risk of bladder cancer (pooled MV RR, 0.97; 95% CI: 0.77-1.24, top vs. bottom quintile). Our findings do not support a role for BMI, height or physical activity in bladder carcinogenesis.
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Affiliation(s)
- Crystal N Holick
- Department of Nutrition, Harvard School of Public Health, Boston, MA 02115, USA.
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Cantwell MM, Lacey JV, Schairer C, Schatzkin A, Michaud DS. Reproductive factors, exogenous hormone use and bladder cancer risk in a prospective study. Int J Cancer 2006; 119:2398-401. [PMID: 16894568 DOI: 10.1002/ijc.22175] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Sex is a consistent predictor of bladder cancer: men experience 2-4-fold higher age-adjusted rates than women in the U.S. and Europe. The objective of this study was to examine whether hormone-related factors are associated with bladder cancer in women. We examined parity, age at menarche, age at first birth, age at menopause, oral contraceptive use and menopausal hormone therapy (HT) use and bladder cancer risk in the Breast Cancer Detection Demonstration Project Follow-Up Study. Endpoint and exposure information was collected on 54,308 women, using annual telephone interviews (1980-86) and 3 mailed, self-administered questionnaires (1987-98). During an average follow-up time of 15.3 years, 167 cases of bladder cancer were identified. Univariate and adjusted rate ratios (RRs) were estimated using Poisson regression. Parity, age at menarche, age at first birth, age at menopause, and oral contraceptive use were not associated with bladder cancer risk. The majority of menopausal women who took HT used estrogen therapy (ET). Postmenopausal women with less than 4 years, 4-9 years, 10-19 years and 20 or more years of ET use had RRs of 1.55 (95% CI = 0.96-2.51), 1.00 (95% CI = 0.49-2.04), 1.23 (95% CI = 0.62-2.43) and 0.57 (95% CI = 0.14-2.34), respectively, compared with nonusers (p = 0.50). Findings from this study are not consistent with the hypothesis that hormone-related factors in women are associated with bladder cancer.
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Affiliation(s)
- Marie M Cantwell
- Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Olfert SM, Felknor SA, Delclos GL. An Updated Review of the Literature: Risk Factors for Bladder Cancer with Focus on Occupational Exposures. South Med J 2006; 99:1256-63. [PMID: 17195421 DOI: 10.1097/01.smj.0000247266.10393.72] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Workplace exposures account for 5 to 25% of all bladder cancer cases. A critical review of the literature between 1938 and 2004 was performed, with a focus on occupational exposures. Occupational exposure to bladder carcinogens, particularly to beta-naphthylamine occur in a number of industries, including aromatic amine manufacture, rubber and cable manufacture, and dyestuff manufacture and use. Risks to workers in a number of new occupations and industries are reviewed. Nonoccupational risk factors that are known or at one time have been thought to increase the risk of bladder cancer are also discussed.
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Affiliation(s)
- Sandra M Olfert
- University of Texas School of Public Health at Houston, Southwest Center for Occupational and Environmental Health, Houston, TX 77030, USA
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Serretta V, Morgia G, Altieri V, Pavone-Macaluso M, Scuto F, Allegro R, Di Lallo A, Cindolo L, Melloni D. Preliminary Report of a Multicentric Study on Environmental Risk Factors in Ta-T1 Transitional Cell Carcinoma of the Bladder. Urol Int 2006; 77:152-8. [PMID: 16888422 DOI: 10.1159/000093911] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2005] [Accepted: 03/09/2006] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The distribution of potential environmental risk factors among patients affected by superficial transitional cell carcinoma of the bladder (TCCB) has been analyzed. METHODS Patients affected by superficial TCCB underwent TUR and early intravesical chemotherapy. Detailed data about age, sex, residence, employment, active and passive cigarette smoking, water resource and hair dye use were centralized. Analysis has been conducted on 474 patients affected by Ta-T1 G1-2 TCCB at medium risk for recurrence. Patients with primary single Ta G1-2, Tis or T1G3 tumors were excluded from the present analysis. RESULTS Over 80% of the patients lived in urban areas, 22% were employed in industries presumed at risk for bladder cancer, 8% used hair dye and 75% were smokers. Bottled water was the only water resource in 42% of the patients. Employment in industry at risk (p = 0.01) and cigarette smoking (p = 0.04) resulted in being statistically related to tumor multiplicity. Moreover, the period of cigarette smoking was significantly longer in patients with recurrent tumors (p = 0.026). The municipal water supply represented the main water source in never-smokers (p = 0.01) rather than in smokers and in patients harboring T1 rather than Ta tumors (p = 0.03). CONCLUSIONS Employment in industry at risk and cigarette smoking resulted in being related to tumor multiplicity. The length of exposure to cigarette smoking was related to the natural history of the tumor. A drinkable water source emerged as a risk factor in absence of cigarette smoking.
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Affiliation(s)
- V Serretta
- Department of Urology at University of Palermo, Palermo, Italy
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Hinkula M, Kauppila A, Näyhä S, Pukkala E. Cause-specific mortality of grand multiparous women in Finland. Am J Epidemiol 2006; 163:367-73. [PMID: 16371514 DOI: 10.1093/aje/kwj048] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Knowledge is limited on mortality of grand multiparous women (> or =5 deliveries), whose hormonal, metabolic, and social conditions differ from the average. The authors studied overall and cause-specific mortality in 1974-2001 among 87,922 grand multiparous women including 3,678 grand grand multiparous women (> or =10 deliveries) in Finland. Standardized mortality ratios were defined as ratios of observed to expected numbers of deaths, both derived from national cause-of-death files. During follow-up, 18,870 grand multiparous women and 625 grand grand multiparous women died (standardized mortality ratios (SMRs) = 0.95 and 1.01, respectively). Decreased mortality among grand multiparous women was found for cancers of the breast (SMR = 0.64, 95% confidence interval (CI): 0.59, 0.69), corpus uteri (SMR = 0.68, 95% CI: 0.56, 0.80), ovary (SMR = 0.68, 95% CI: 0.60, 0.75), bladder (SMR = 0.59, 95% CI: 0.41, 0.82), and respiratory tract (SMR = 0.80, 95% CI: 0.72, 0.88). The only malignant tumor associated with elevated mortality was kidney cancer (SMR = 1.38, 95% CI: 1.21, 1.56). The standardized mortality ratio was also low for dementia (SMR = 0.78, 95% CI: 0.72, 0.84), respiratory diseases (SMR = 0.80, 95% CI: 0.75, 0.85), and accidents and violent causes (SMR = 0.79, 95% CI: 0.73, 0.84). Mortality from diabetes mellitus (SMR = 1.42, 95% CI: 1.29, 1.55) and ischemic heart disease (SMR = 1.10, 95% CI: 1.08, 1.13) was increased. According to this study, overall mortality among grand multiparous women is not elevated. Low mortality from cancers is offset by higher mortality from cardiovascular conditions and diabetes mellitus.
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Affiliation(s)
- Marianne Hinkula
- Department of Obstetrics and Gynecology, Oulu University Hospital, University of Oulu, PL 24, FIN-90029 OYS, Oulu, Finland.
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McGrath M, Michaud DS, De Vivo I. Hormonal and reproductive factors and the risk of bladder cancer in women. Am J Epidemiol 2006; 163:236-44. [PMID: 16319290 DOI: 10.1093/aje/kwj028] [Citation(s) in RCA: 120] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Gender and cigarette smoking are among the most consistent predictors of bladder cancer risk. After adjustment for known risk factors, an excess risk remains for males, suggesting that other factors may be responsible for the gender differences. Given limited data on hormonal or reproductive factors and bladder cancer risk, the authors examined these factors among women in the US Nurses' Health Study cohort. During 26 years of follow-up (1976-2002), 336 incident cases of bladder cancer were diagnosed. Cox proportional hazards models were used to estimate incidence rate ratios and 95% confidence intervals between hormonal and reproductive factors and bladder cancer risk. Postmenopausal women, compared with premenopausal women, were at increased risk (incidence rate ratio = 1.93, 95% confidence interval: 0.99, 3.78). For postmenopausal women, early age at menopause (</=45 years) compared with late age at menopause (>/=50 years) was associated with a statistically significant increased risk of bladder cancer (incidence rate ratio = 1.63, 95% confidence interval: 1.20, 2.23). The association between age at menopause and bladder cancer risk was modified by cigarette smoking status (p for interaction = 0.01). The authors observed no significant associations of age at menarche, parity, age at first birth, and exogenous hormone use with bladder cancer risk. Findings suggest that menopausal status and age at menopause may play a role in modifying bladder cancer risk among women.
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Affiliation(s)
- Monica McGrath
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA.
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Kellen E, Zeegers M, Paulussen A, Van Dongen M, Buntinx F. Fruit consumption reduces the effect of smoking on bladder cancer risk. The Belgian case control study on bladder cancer. Int J Cancer 2006; 118:2572-8. [PMID: 16380991 DOI: 10.1002/ijc.21714] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We have hypothesized that consumption of fruit and vegetables may be associated with reduced risk of bladder cancer and that this may interact with cigarette smoking and metabolic genetic polymorphisms. A population-based case-control study was performed in the Belgian province of Limburg among 200 cases and 385 controls. Logistic regression was performed to calculate odds ratios (ORs) for bladder cancer occurrence with corresponding 95% confidence intervals (95% CI). Effect modification by smoking was investigated. We also evaluated interaction between fruit intake and GSTM1, GSTT1, NAT2 and SULT1A1 amongst "ever-smokers." Total vegetable intake was not significantly associated with the risk of bladder cancer (OR 1.15, 95% CI: 0.70-1.88 for the highest compared to the lowest tertile). However, total fruit intake was negatively associated with bladder cancer risk (OR 0.61, 95% CI 0.37-0.99 comparing the same tertiles). Among individuals with low daily fruit consumption, ever smokers had a highly increased risk of bladder cancer risk (OR: 4.23, 95% CI: 1.91-9.40). By increasing the daily fruit consumption, the risk of "ever-smokers" for developing bladder cancer decreased, however it remained significant (OR: 2.15; 95CI%: 1.15-4.05). No interaction was identified between the different genotypes and fruit consumption. We conclude that fruit consumption may decrease the effect of smoking on developing bladder cancer. Antioxidants, found in fruit, may protect against the damage caused by free radicals found in cigarette smoke. Metabolic polymorphisms appear not to modify this relation.
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Affiliation(s)
- Eliane Kellen
- Department of General Practice, Comprehensive Cancer Institute Limburg, Katholieke Universiteit Leuven, Belgium.
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Moyad MA. Bladder cancer prevention. Part I: what do I tell my patients about lifestyle changes and dietary supplements? Curr Opin Urol 2003; 13:363-78. [PMID: 12917512 DOI: 10.1097/00042307-200309000-00003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW Comprehensive reviews of lifestyle changes and dietary supplements that may prevent bladder cancer are needed in order to facilitate discussions between clinicians and patients. RECENT FINDINGS Novel data exist that numerous lifestyle/diet and dietary supplements may lower the risk of this disease. For example, reducing arsenic exposure, incorporating dietary changes, and vitamin E supplements continue to accumulate research that supports their use with some patients at a higher risk for this disease. Regardless, smoking cessation seems to have the largest impact on reducing risk and incorporating these other changes after smoking cessation may reduce an individual's risk to an even greater extent. SUMMARY However, a large percentage of cases of individuals diagnosed with this cancer apparently have no known etiology. Diets lower in calories or possibly specific sub-types of fat, and higher in fruits and especially vegetables, seem to provide some protection. Other dietary/supplement options may affect risk, but these benefits could be seriously attenuated by smoking. Dietary selenium, but currently not selenium supplements, may also affect risk, especially in non-smokers. Dietary vitamin E, and vitamin E supplements, may provide some protection. Non-selective (e.g. non-steroidal anti-inflammatory drugs) and selective cyclooxygenase-2 inhibitors are generating interest because bladder tumors seem to contain higher concentrations of this enzyme. Drinking-water quality, especially arsenic concentrations, may seriously affect risk. Providing recommendations for patients with regard to some of these lifestyle modifications is currently recommended because the majority of these alterations are also recommended currently for cardiovascular or general oncology disease reduction.
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Affiliation(s)
- Mark A Moyad
- University of Michigan, Medical Center-Department of Urology, Ann Arbor, Michigan 48109-0330, USA.
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Fernandez E, Gallus S, Bosetti C, Franceschi S, Negri E, La Vecchia C. Hormone replacement therapy and cancer risk: a systematic analysis from a network of case-control studies. Int J Cancer 2003; 105:408-12. [PMID: 12704678 DOI: 10.1002/ijc.11083] [Citation(s) in RCA: 134] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
To provide comprehensive and quantitative information on the benefits and risks of hormone replacement therapy (HRT) on several cancer sites, we systematically examined the relation between HRT use and the risk of various cancers in women aged 45-79 by using data from a framework of case-control studies conducted in Italy between 1983 and 1999. The overall data set included the following incident, histologically confirmed neoplasms: oral cavity, pharynx, larynx and esophagus (n = 253), stomach (n = 258), colon (n = 886), rectum (n = 488), liver (n = 105), gallbladder (n = 31), pancreas (n = 122), breast (n = 4,713), endometrium (n = 704), ovary (n = 1,614), urinary bladder (n = 106), kidney (n = 102), thyroid (n = 65), Hodgkin's disease (n = 26), non-Hodgkin's lymphomas (n = 145), multiple myeloma (n = 65) and sarcomas (n = 78). The control group comprised 6,976 women aged 45-79 years, admitted for a wide spectrum of acute, nonneoplastic conditions. Odds ratios (OR) and the corresponding 95% confidence intervals (CI) for use of HRT were derived from multiple logistic regression equations. There was an inverse association between ever use of HRT and colon (OR = 0.7), rectum (OR = 0.5) and liver cancer (OR = 0.2), with a consistent pattern of protection for duration of use. An excess risk was found for gallbladder (OR = 3.2), breast (OR = 1.1), endometrial (OR = 3.0) and urinary bladder cancer (OR = 2.0). These data from a southern European population add some useful information on the risk-benefit assessment of HRT among postmenopausal women.
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Affiliation(s)
- Esteve Fernandez
- Cancer Prevention and Control Unit, Institut Català d'Oncologia, L'Hospitalet (Barcelona), Catalonia, Spain.
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