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Risk factors for prostate cancer incidence and progression in the health professionals follow-up study.

Abstract：

:Risk factors for prostate cancer could differ for various sub-groups, such as for "aggressive" and "non-aggressive" cancers or by grade or stage. Determinants of mortality could differ from those for incidence. Using data from the Health Professionals Follow-Up Study, we re-examined 10 factors (cigarette smoking history, physical activity, BMI, family history of prostate cancer, race, height, total energy consumption, and intakes of calcium, tomato sauce and alpha-linolenic acid) using multivariable Cox regression in relation to multiple subcategories for prostate cancer risk. These were factors that we previously found to be predictors of prostate cancer incidence or advanced prostate cancer in this cohort, and that have some support in the literature. In this analysis, only 4 factors had a clear statistically significant association with overall incident prostate cancer: African-American race, positive family history, higher tomato sauce intake (inversely) and alpha-linolenic acid intake. In contrast, for fatal prostate cancer, recent smoking history, taller height, higher BMI, family history, and high intakes of total energy, calcium and alpha-linolenic acid were associated with a statistically significant increased risk. Higher vigorous physical activity level was associated with lower risk. In relation to these risk factors, advanced stage at diagnosis was a good surrogate for fatal prostate cancer, but high-grade (Gleason >/= 7 or Gleason >/= 8) was not. Only for high calcium intake was there a close correspondence for associations among high-grade cancer, advanced and fatal prostate cancer. Tomato sauce (inversely) and alpha-linolenic acid (positively) intakes were strong predictors of advanced cancer among those with low-grade cancers at diagnosis. Although the proportion of advanced stage cancers was much lower after PSA screening began, risk factors for advanced stage prostate cancers were similar in the pre-PSA and PSA era. The complexity of the clinical and pathologic manifestations of prostate cancer must be considered in the design and interpretation of studies.

journal_name

Int J Cancer

journal_title

International journal of cancer

authors

Giovannucci E,Liu Y,Platz EA,Stampfer MJ,Willett WC

doi

10.1002/ijc.22788

subject

Has Abstract

pub_date

2007-10-01 00:00:00

pages

1571-8

issue

eissn

0020-7136

issn

1097-0215

journal_volume

121

pub_type

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Risk factors for prostate cancer incidence and progression in the health professionals follow-up study.