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| Content Provider | Springer Nature Link |
|---|---|
| Author | Virtamo, Jarmo Edwards, Brenda K. Virtanen, Mikko Taylor, Philip R. Malila, Nea Albanes, Demetrius Huttunen, Jussi K. Hartman, Anne M. Hietanen, Päivi Mäenpää, Hanna Koss, Leopold rdling, Stig Heinen, Olli P. |
| Copyright Year | 2000 |
| Abstract | Objectives: Epidemiological studies have suggested a protective effect of vegetables and fruits on urinary tract cancer but the possible protective nutrients are unknown. We studied the effect of alpha-tocopherol (a form of vitamin E) and beta-carotene supplementation on urinary tract cancer in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study. Methods: A total of 29,133 male smokers aged 50–69 years from southwestern Finland were randomly assigned to receive alpha-tocopherol (50 mg), beta-carotene (20 mg), both agents, or a placebo daily for 5–8 years (median 6.1 years). Incident urothelial cancers (bladder, ureter, and renal pelvis; n = 169) and renal cell cancers (n = 102) were identified through the nationwide cancer registry. The diagnoses were centrally confirmed by review of medical records and pathology specimens. The supplementation effects were estimated using a proportional hazards model. Results: Neither alpha-tocopherol nor beta-carotene affected the incidence of urothelial cancer, relative risk 1.1 (95% confidence interval (CI) 0.8–1.5) and 1.0 (95% CI 0.7–1.3), respectively, or the incidence of renal cell cancer, relative risk 1.1 (95% CI 0.7–1.6) and 0.8 (95% CI 0.6–1.3), respectively. Conclusion: Long-term supplementation with alpha-tocopherol and beta-carotene has no preventive effect on urinary tract cancers in middle-aged male smokers. |
| Starting Page | 933 |
| Ending Page | 939 |
| Page Count | 7 |
| File Format | |
| ISSN | 09575243 |
| Journal | Cancer Causes & Control |
| Volume Number | 11 |
| Issue Number | 10 |
| e-ISSN | 15737225 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2000-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Public Health/Gesundheitswesen Hematology Oncology Epidemiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cancer Research Oncology |
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