| 1. |
- Discacciati, A., et al.
(författare)
-
Body mass index in early and middle-late adulthood and risk of localised, advanced and fatal prostate cancer : a population-based prospective study
- 2011
-
Ingår i: British Journal of Cancer. - : NATURE PUBLISHING GROUP. - 0007-0920 .- 1532-1827. ; 105:7, s. 1061-1068
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The relationships between body mass index (BMI) during early and middle-late adulthood and incidence of prostate cancer (PCa) by subtype of the disease (localised, advanced) and fatal PCa is unclear. METHODS: A population-based cohort of 36 959 Swedish men aged 45-79 years was followed up from January 1998 through December 2008 for incidence of PCa (1530 localised and 554 advanced cases were diagnosed) and through December 2007 for PCa mortality (225 fatal cases). RESULTS: From a competing-risks analysis, incidence of localised PCa was observed to be inversely associated with BMI at baseline (middle-late adulthood; rate ratio (RR) for 35 kgm(-2) when compared with 22 kgm(-2) was 0.69 (95% CI 0.52 - 0.92)), but not at age 30. For fatal PCa, BMI at baseline was associated with a nonstatistically significant increased risk (RR for every five-unit increase: 1.12 (0.88 - 1.43)) and BMI at age 30 with a decreased risk (RR for every five-unit increase: 0.72 (0.51 - 1.01)). CONCLUSION: Our results indicate an inverse association between obesity during middle-late, but not early adulthood, and localised PCa. They also suggest a dual association between BMI and fatal PCa - a decreased risk among men who were obese during early adulthood and an increased risk among those who were obese during middle-late adulthood. British Journal of Cancer (2011) 105, 1061-1068. doi:10.1038/bjc.2011.319 www.bjcancer.com Published online 16 August 2011 (C) 2011 Cancer Research UK
|
|
| 2. |
- Discacciati, A., et al.
(författare)
-
Coffee consumption and risk of localized, advanced and fatal prostate cancer : a population-based prospective study
- 2013
-
Ingår i: Annals of Oncology. - : Elsevier BV. - 0923-7534 .- 1569-8041. ; 24:7, s. 1912-1918
-
Tidskriftsartikel (refereegranskat)abstract
- Background: The epidemiological evidence on possible relationships between coffee consumption and prostate cancer (PCa) risk by subtype of the disease (localized, advanced) and fatal PCa risk is limited.Materials and methods: A population-based cohort of 44 613 Swedish men aged 45-79 years was followed up from January 1998 through December 2010 for incidence of localized (n = 2368), advanced (n = 918) and fatal (n = 515) PCa. We assessed the associations between coffee consumption and localized, advanced and fatal PCa risk using competing-risk regressions. We examined possible effect modification by body mass index (BMI).Results: For localized PCa, each one cup increase in daily coffee consumption was associated with a 3% reduced risk [sub-hazard ratio (SHR) = 0.97, 95% confidence interval (CI) = 0.95-0.99]. For advanced and fatal PCa, we found a non-significant inverse association; each one cup increase was associated with a 2% reduced risk of advanced [SHR (95% CI) = 0.98 (0.95-1.02)] and fatal PCa [SHR (95% CI) = 0.98 (0.93-1.03)]. We observed evidence of effect modification by BMI for localized PCa (P-interaction = 0.03); the inverse association was stronger among overweight and obese men (BMI >= 25 kg/m(2)) compared with normal-weight men (BMI < 25 kg/m(2)).Conclusions: We observed a clear inverse association between coffee consumption and risk of localized PCa, especially among overweight and obese men.
|
|
| 3. |
- Orsini, N., et al.
(författare)
-
A prospective study of lifetime physical activity and prostate cancer incidence and mortality
- 2009
-
Ingår i: British Journal of Cancer. - : NATURE PUBLISHING GROUP. - 0007-0920 .- 1532-1827. ; 101:11, s. 1932-1938
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The possible benefit of lifetime physical activity (PA) in reducing prostate cancer incidence and mortality is unclear. METHODS: A prospective cohort of 45 887 men aged 45-79 years was followed up from January 1998 to December 2007 for prostate cancer incidence (n = 2735) and to December 2006 for its subtypes and for fatal (n 190) prostate cancer. RESULTS: We observed an inverse association between lifetime (average of age 30 and 50 years, and baseline age) total PA levels and prostate cancer risk. Multivariate-adjusted incidence in the top quartile of lifetime total PA decreased by 16% (95% confidence interval (CI) = 2-27%) compared with that in the bottom quartile. We also observed an inverse association between average lifetime work or occupational activity and walking or bicycling duration and prostate cancer risk. Compared with men who mostly sit during their main work or occupation, men who sit half of the time experienced a 20% lower risk (95% CI = 7-31%). The rate ratio linearly decreased by 7% (95% CI = 1-12%) for total, 8% (95% CI = 0-16%) for localised and 12% (95% CI = 2-20%) for advanced prostate cancer for every 30 min per day increment of lifetime walking or bicycling in the range of 30 to 120 min per day. CONCLUSION: Our results suggest that not sitting for most of the time during work or occupational activity and walking or bicycling more than 30 min per day during adult life is associated with reduced incidence of prostate cancer. British Journal of Cancer (2009) 101, 1932-1938. doi:10.1038/bjc.6605404 www.bjcancer.com Published online 27 October 2009 (C) 2009 Cancer Research UK
|
|
