Body mass index in relation to serum prostate-specific antigen levels and prostate cancer risk

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Bonn, Stephanie E.Karolinska Institutet (författare)

Body mass index in relation to serum prostate-specific antigen levels and prostate cancer risk

Artikel/kapitelEngelska2016

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2016-03-10
WILEY-BLACKWELL,2016
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LIBRIS-ID:oai:DiVA.org:mdh-40667
https://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-40667URI
https://doi.org/10.1002/ijc.30052DOI
http://kipublications.ki.se/Default.aspx?queryparsed=id:133384441URI

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Språk:engelska
Sammanfattning på:engelska

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High Body mass index (BMI) has been directly associated with risk of aggressive or fatal prostate cancer. One possible explanation may be an effect of BMI on serum levels of prostate-specific antigen (PSA). To study the association between BMI and serum PSA as well as prostate cancer risk, a large cohort of men without prostate cancer at baseline was followed prospectively for prostate cancer diagnoses until 2015. Serum PSA and BMI were assessed among 15,827 men at baseline in 2010-2012. During follow-up, 735 men were diagnosed with prostate cancer with 282 (38.4%) classified as high-grade cancers. Multivariable linear regression models and natural cubic linear regression splines were fitted for analyses of BMI and log-PSA. For risk analysis, Cox proportional hazards regression models were used to estimate hazard ratios (HR) and 95% confidence intervals (CI) and natural cubic Cox regression splines producing standardized cancer-free probabilities were fitted. Results showed that baseline Serum PSA decreased by 1.6% (95% CI: -2.1 to -1.1) with every one unit increase in BMI. Statistically significant decreases of 3.7, 11.7 and 32.3% were seen for increasing BMI-categories of 25<30, 30<35 and 35 kg/m(2), respectively, compared to the reference (18.5<25 kg/m(2)). No statistically significant associations were seen between BMI and prostate cancer risk although results were indicative of a positive association to incidence rates of high-grade disease and an inverse association to incidence of low-grade disease. However, findings regarding risk are limited by the short follow-up time. In conclusion, BMI was inversely associated to PSA-levels. BMI should be taken into consideration when referring men to a prostate biopsy based on serum PSA-levels. What's new? High body mass index (BMI) has been associated with risk of aggressive or fatal prostate cancer. One possible explanation may be an effect on serum prostate-specific antigen (PSA) levels. Here, the authors assessed the association between BMI and serum PSA level and prostate cancer risk in a large prospective cohort study. While no statistically significant associations were found between BMI and overall risk of prostate cancer, increasing BMI was associated with decreased serum PSA levels among men with no previous prostate cancer diagnosis. BMI should be taken into consideration when referring men to a prostate biopsy based on PSA-test results.

Ämnesord och genrebeteckningar

MEDICIN OCH HÄLSOVETENSKAP Hälsovetenskap hsv//swe
MEDICAL AND HEALTH SCIENCES Health Sciences hsv//eng
body mass index
incidence
prostate cancer
prostate specific antigen

Biuppslag (personer, institutioner, konferenser, titlar ...)

Sjolander, ArvidKarolinska Institutet (författare)
Tillander, AnnikaKarolinska Inst, Dept Med Epidemiol & Biostat, Nobels Vag 12A, S-17177 Stockholm, Sweden. (författare)
Wiklund, FredrikKarolinska Institutet (författare)
Gronberg, HenrikKarolinska Institutet (författare)
Bälter, KatarinaKarolinska Institutet(Swepub:mdh)kbr01 (författare)
Karolinska InstitutetKarolinska Inst, Dept Med Epidemiol & Biostat, Nobels Vag 12A, S-17177 Stockholm, Sweden. (creator_code:org_t)

Sammanhörande titlar

Ingår i:International Journal of Cancer: WILEY-BLACKWELL139:1, s. 50-570020-71361097-0215

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International Journal of Cancer (Sök värdpublikationen i LIBRIS)

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Av författaren/redakt...: Bonn, Stephanie ...; Sjolander, Arvid; Tillander, Annik ...; Wiklund, Fredrik; Gronberg, Henrik; Bälter, Katarina

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Hälsovetenskap

Artiklar i publikationen: International Jo ...

Av lärosätet: Mälardalens universitet; Karolinska Institutet

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