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Sökning: WFRF:(Lindblad Per 1953 )

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  • Bergström, A., et al. (författare)
  • Birth weight and risk of renal cell cancer
  • 2001
  • Ingår i: Kidney International. - Malden, USA : Blackwell Publishing. - 0085-2538. - 0085-2538 (Print) 0085-2538 (Linking) ; 59:3, s. 1110-1113
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The prenatal period has been suggested to be important for future cancer risk. Conditions in utero are also important for the development of the kidney, and birth weight, a marker of fetal nutrition and growth, is linearly correlated with the number of nephrons and the structural and functional unit of the kidney. An association between birth weight and renal cell cancer, the major form of kidney cancer, is biologically plausible, but has never been studied.Methods: We conducted a population-based, case-controlled study in Sweden of men and women aged 20 to 79 years. We collected self-reported information on categories of birth weight from 648 patients with newly diagnosed renal cell cancer and from 900 frequency-matched control subjects. We used unconditional logistic regression to calculate odds ratios (ORs) and 95% confidence intervals (CIs) as estimates of the relative risks.Results: An increased risk of renal cell cancer was observed among men with a birth weight of > or =3500 g (adjusted OR = 1.3, 95% CI, 1.0 to 1.8) compared with men with a birth weight between 3000 and 3499 g, especially in the subgroup without hypertension or diabetes (adjusted OR = 1.8, 95% CI, 1.2 to 2.6). No clear association among men with a birth weight <3000 g or among women was found.Conclusions: Our study shows that conditions in utero, reflected by birth weight, might affect the risk of renal cell cancer in adulthood. It is unclear why no association was found among women. Further studies, based on weight from birth certificates, are needed to clarify this relationship.
  • Bergström, A., et al. (författare)
  • Obesity and renal cell cancer : a quantitative review
  • 2001
  • Ingår i: British Journal of Cancer. - London, United Kingdom : Nature Publishing Group. - 0007-0920. - 0007-0920 (Print) 0007-0920 (Linking) ; 85:7, s. 984-990
  • Tidskriftsartikel (refereegranskat)abstract
    • Obesity has been associated with an increased risk of renal cell cancer among women, while the evidence for men is considered weaker. We conducted a quantitative summary analysis to evaluate the existing evidence that obesity increases the risk of renal cell cancer both among men and women. We identified all studies examining body weight in relation to kidney cancer, available in MEDLINE from 1966 to 1998. The quantitative summary analysis was limited to studies assessing obesity as body mass index (BMI, kg m(-2)), or equivalent. The risk estimates and the confidence intervals were extracted from the individual studies, and a mixed effect weighted regression model was used. We identified 22 unique studies on each sex, and the quantitative analysis included 14 studies on men and women, respectively. The summary relative risk estimate was 1.07 (95% CI 1.05-1.09) per unit of increase in BMI (corresponding to 3 kg body weight increase for a subject of average height). We found no evidence of effect modification by sex. Our quantitative summary shows that increased BMI is equally strongly associated with an increased risk of renal cell cancer among men and women.
  • Bergström, A., et al. (författare)
  • Occupational physical activity and renal cell cancer a nationwide cohort study in Sweden
  • 1999
  • Ingår i: International Journal of Cancer. - New York, USA : John Wiley & Sons. - 0020-7136. - 0020-7136 (Print) 0020-7136 (Linking) ; 83:2, s. 186-91
  • Tidskriftsartikel (refereegranskat)abstract
    • The causes of renal cell cancer remain incompletely understood. In one previous retrospective case-control study, high occupational physical activity has been associated with a decreased risk among men, but not among women. Our aim was to investigate the association between occupational physical activity and renal cell cancer in a large cohort in Sweden. A cohort of Swedish men and women was identified in the nationwide censuses in 1960 and 1970, and the reported occupations were classified into 4 levels of physical demands. Follow-up from 1971 through 1989 was accomplished through record linkages to the Swedish Cancer Registry. Multivariate Poisson regression models were used to estimate relative risk (RR) and 95% confidence intervals (CI). We found a monotonic increase in risk of renal cell cancer with decreasing level of occupational physical activity among men (p for trend <0.001). After adjustment for socio-economic status, place of residence, and calendar year of follow-up, men with long-term sedentary jobs had a 25% (RR = 1.25, 95% CI 1.02-1.53) increased risk compared to men with physically demanding occupations. Among women there was no association, the dose-risk trend was not significant (p for trend >0.50). Occupational physical activity was inversely associated with renal cell cancer among men. The absence of association among women might be due to smaller range of exposure, confounding by household work or reproductive factors, or to a difference in biological response to physical activity in men and women.
  • Bergström, A., et al. (författare)
  • Physical activity and risk of renal cell cancer
  • 2001
  • Ingår i: International Journal of Cancer. - New York, USA : John Wiley & Sons. - 0020-7136. - 0020-7136 (Print) 0020-7136 (Linking) ; 92:1, s. 155-157
  • Tidskriftsartikel (refereegranskat)abstract
    • The relation between physical activity and renal cell cancer is unclear. High occupational physical activity has been associated with a decreased risk of renal cell cancer among men-but not among women-in two previous studies, while no association has been found for leisure time physical activity. Our aim was to investigate the association between occupational and leisure time physical activity in a prospective cohort of 17,241 Swedish twins. Information on physical activity and a wide range of potential confounding factors was obtained through a mailed questionnaire. During follow-up from 1967 through 1997 we identified 102 cases of renal cell cancer. We found no evidence of an inverse association between either occupational or leisure time physical activity and risk of renal cell cancer in this prospective cohort.
  • Cho, Eunyoung, et al. (författare)
  • Epidemiology of renal cell cancer
  • 2011
  • Ingår i: Hematology/Oncology Clinics of North America. - Maryland Heights, USA : Saunders Elsevier. - 0889-8588. ; 25:4, s. 651-665
  • Forskningsöversikt (övrigt vetenskapligt)abstract
    • Renal cell cancer (RCC) is increasingly diagnosed at an early stage in many countries, which likely contributes to the recent leveling of RCC mortality in the United States and many European countries. However, over all stages nearly 50% of the patients die within 5 years after diagnosis. Smoking and obesity may account for approximately 40% of all incidental cases in high-risk countries. Besides obesity, rising prevalence of hypertension may play a growing role. Several other occupational and lifestyle factors may also affect the risk of RCC. Genetic variations may be an important factor in the differing incidence among populations.
  • Chow, W. H., et al. (författare)
  • Risk of urinary tract cancers following kidney or ureter stones
  • 1997
  • Ingår i: Journal of the National Cancer Institute. - Oxford, United Kingdom : Oxford University Press. - 0027-8874. - 0027-8874 (Print) 0027-8874 (Linking) ; 89:19, s. 1453-1457
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: A relationship has been suggested between kidney or ureter stones and the development of urinary tract cancers. In this study, a population-based cohort of patients hospitalized for kidney or ureter stones in Sweden was followed for up to 25 years to examine subsequent risks for developing renal cell, renal pelvis/ureter, or bladder cancer.Methods: Data from the national Swedish In-patient Register and the national Swedish Cancer Registry were linked to follow 61,144 patients who were hospitalized for kidney or ureter stones from 1965 through 1983. Standardized incidence ratios (SIRs) and 95% confidence intervals (CIs) were computed on the basis of nationwide cancer incidence rates, after adjustment for age, sex, and calendar year.Results: Risk of renal cell cancer was not elevated in this cohort. Significant excesses of renal pelvis/ureter cancer (SIR = 2.5; 95% CI = 1.8-3.3) and bladder cancer (SIR = 1.4; 95% CI = 1.3-1.6) were observed, but the SIRs for women were more than twice those for men. Risks varied little by age or duration of follow-up. Risks of renal pelvis/ureter cancer and bladder cancer among patients with an associated diagnosis of urinary tract infection were more than double those among patients without such infection, although the risks were significantly elevated in both groups.Conclusions: Individuals hospitalized for kidney or ureter stones are at increased risk of developing renal pelvis/ureter or bladder cancer, even beyond 10 years of follow-up. Chronic irritation and infection may play a role, since kidney or ureter stones were located on the same side of the body as the tumors in most patients with renal pelvis/ureter cancer evaluated in our study.
  • Dabestani, Saeed, et al. (författare)
  • Renal cell carcinoma recurrences and metastases in primary non-metastatic patients : a population-based study
  • 2016
  • Ingår i: World journal of urology. - New York, USA : Springer. - 0724-4983. ; 34:8, s. 1081-1086
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose: To present the occurrence of metastases and local recurrences in primary non-metastatic patients with renal cell carcinoma (RCC) in a contemporary Swedish population-based cohort.Methods: Between 2005 and 2009, a total of 4527 patients were included in the prospective National Swedish Kidney Cancer Register accounting for nearly all RCC patients in Sweden. Among M0 patients, 472 (13 %) had no follow-up data registered within 5-year follow-up time and were excluded from the analysis.Results: In total, 939 (21 %) had distant metastases at presentation with a decrease from 23 to 18 % during the inclusion period. Of 3107 patients with follow-up data and with M0 disease, 623 (20 %) were diagnosed with a tumor recurrence during 5-year follow-up. Mean time to recurrence was 24 months (SD ± 20 months). Among these, 570 patients (92 %) were at primary diagnosis treated with radical nephrectomy, 23 patients (3.7 %) with partial nephrectomy and 12 patients (1.9 %) with minimally invasive treatments. The most frequent sites of metastases were lung (54 %), lymph nodes (22 %) and bone (20 %). The treatment of recurrence was in 50 % systemic treatments, while metastasectomy was performed in 17 % of the patients, out of which 68 % were with a curative intention.Conclusions: In this population-based study, 21 % of the patients had metastatic disease at presentation, with a decreasing trend over the study period. During 5-year follow-up, 20 % of the primary non-metastatic patients had recurrent disease. Of the patients with recurrence, half were given systemic oncological treatment and 17 % underwent metastasectomy.
  • Eunyoung, Cho, et al. (författare)
  • Kidney Cancer
  • 2008
  • Ingår i: Textbook of cancer epidemiology. - Oxford, United Kingdom : Oxford University Press. - 9780195311174
  • Bokkapitel (övrigt vetenskapligt)abstract
    • Cigarette smoking and obesity may account for approximately 40% of cases in high-incidence countries. Continued research in kidney cancer is needed since nearly 50% of the patients die within five years after diagnosis. With the aim of prevention, the continued search for environmental causes should take into account the fact that kidney cancer consists of different types with specific genetic molecular characteristics. In some cases, these genetic alterations have been purportedly associated with specific exposures. Furthermore, genetic polymorphisms may have a modulating effect on metabolic activation and detoxification enzymes. Thus, better understanding of the genetic and molecular processes involved in kidney cancer may help with the analyzing exposure associations that are important in both its initiation and progression.
  • Grabowska, Beata, et al. (författare)
  • Clinical outcome and time trends of surgically treated renal cell carcinoma between 1986 and 2010 : results from a single centre in Sweden
  • 2018
  • Ingår i: Scandinavian journal of urology. - Taylor & Francis Group. - 2168-1805. ; 52:3, s. 206-212
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: The aims of this study were to create a cohort of retrospectively collected renal cell carcinoma (RCC) specimens to be used a basis for prognostic molecular studies, and to investigate the outcome and time trends in patients surgically treated for RCC in a single-centre cohort.MATERIALS AND METHODS: Patients undergoing surgery for RCC between 1986 and 2010 were included in the study. Medical records were reviewed, and the diagnostic tissue was re-evaluated according to a modern classification. The change in patient and tumour characteristics over time was analysed.RESULTS: The study included 345 patients. Smaller tumours, as indicated by primary tumour diameter, tumour (T) stage and American Joint Committee on Cancer (AJCC) stage, were found more frequently in later years compared to the early 1990s. No changes in the clinical outcome for the patients were seen among the time periods investigated. Increasing T stage, AJCC stage, primary tumour diameter and decreasing haemoglobin levels were associated with cancer-specific mortality in univariate analysis. A high calcium level was significantly associated with increased cancer-specific mortality (hazard ratio = 4.25, 95% confidence interval 1.36-13.28) in multivariate analysis.CONCLUSIONS: This study on patients who underwent surgery for RCC from 1986 to 2010 at a single institution in Sweden indicates that there has been a change in tumour characteristics of patients diagnosed with RCC over time. It was also shown that calcium levels were an independent prognostic factor for cancer-specific mortality in this cohort. This cohort could provide a valuable basis for further molecular studies.
  • Greving, J. P., et al. (författare)
  • Alcoholic beverages and risk of renal cell cancer
  • 2007
  • Ingår i: British Journal of Cancer. - London, United Kingdom : Nature Publishing Group. - 0007-0920. - 0007-0920 (Print) 0007-0920 (Linking) ; 97:3, s. 429-433
  • Tidskriftsartikel (refereegranskat)abstract
    • Using a mailed questionnaire, we investigated the risk of renal cell cancer in relation to different types of alcoholic beverages, and to total ethanol in a large population-based case-control study among Swedish adults, including 855 cases and 1204 controls. Compared to non-drinkers, a total ethanol intake of >620 g month(-1) was significantly related to a decreased risk of renal cell cancer (odds ratio (OR) 0.6, 95% confidence interval (CI) 0.4-0.9; P-value for trend=0.03). The risk decreased 30-40% with drinking more than two glasses per week of red wine (OR 0.6, 95% CI 0.4-0.9), white wine (OR 0.7, 95% CI 0.4-1.0), or strong beer (OR 0.6, 95% CI 0.4-1.0); there was a clear linear trend of decreasing risk with increasing consumption of these beverages (P-values for trends <0.05).
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