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Physical activity and incidence of c...

Fruth, Larry Lee, II.

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Physical activity and incidence of cancer: A meta-analysis.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Physical activity and incidence of cancer: A meta-analysis./
作者:	Fruth, Larry Lee, II.
面頁冊數:	110 p.
附註:	Source: Dissertation Abstracts International, Volume: 64-03, Section: B, page: 1158.
Contained By:	Dissertation Abstracts International64-03B.
標題:	Health Sciences, Education. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3085576
ISBN:	9780496333837

Physical activity and incidence of cancer: A meta-analysis.
Fruth, Larry Lee, II.

Physical activity and incidence of cancer: A meta-analysis. - 110 p.

Source: Dissertation Abstracts International, Volume: 64-03, Section: B, page: 1158.

Thesis (Ph.D.)--The University of Toledo, 2003.

Cancer is the second leading cause of death in the United States. During 2001, an estimated 1,220,100 persons in the United States were expected to be diagnosed with cancer, with 552,200 persons expected to die (USDHHS, 2000). The search for the causes of cancer has shed light on the fact that many common cancers found in humans are associated with potentially controllable external influences. Numerous studies have been conducted to evaluate physical activity's possible effects on cancer incidence in humans. These studies have used various measures of physical activity, focused on various types of cancer and, taken collectively, have indicated mixed results. The purpose of this study is to identify research done relating physical activity to incidence of all-site cancers to determine whether individuals with higher physical activity levels have lower cancer incidence rates when compared to less active individuals. In addition to incidence rates, a review of whether the findings are consistent across sites, amount and type of exercise, and characteristics of the study groups is presented. This study identified 162 research studies relating physical activity levels to incidence of all-site cancers and utilized a meta-analytical methodology to determine the over-all effect of physical activity and incidence of cancer, by combining the results of many studies to compute an "effect size". All studies describing detailed analysis of subjects, fitness levels, and cancer incidence are included in the analysis. Rates are documented for raw numbers, odds-ratios, or risk ratios between low, moderate, or high fitness levels, athlete versus non-athlete, or active versus non-active individuals. The pooling of data is based on a fixed-effect model due to its ratio (odds ratio, rate ratio, or risk ratio) effect measurement utilization. Data included in the analysis was converted into odds ratios for comparisons. The results of this study indicate that increased levels of physical activity (low and moderate versus high levels) did not provide any protective mechanism versus all-type or site-specific cancer incidence. Finally, the various physical activity measurements utilized by studies in this analysis did not influence the incidence of cancer at varying activity levels.

ISBN: 9780496333837Subjects--Topical Terms:

1017921
Health Sciences, Education.

Physical activity and incidence of cancer: A meta-analysis.
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