Case-control study of prostate cancer in black patients in Soweto, South Africa

Walker, Alexander; Walker, B. F.; Tsotetsi, N. G.; Sebitso, C.; Siwedi, D.; Walker, Anne

doi:10.1038/bjc.1992.89

Cited by 98 publications

(35 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, positive associations were observed, in other cohort studies for consumption of meat (Hirayama, 1990), high fat animal products and beef (Le Marchand et al, 1994), beef, pork and lamb (Giovannucci et al, 1993;Gann et al, 1994), and for meat, poultry and fish (Mills et al, 1989) and in case-control studies for consumption of meat (Mishina et al, 1985;Talamini et al, 1986;Walker et al, 1992), lamb and pork (Bravo et al, 1991) and meat and fish combined (Graham et al, 1983). In other cohort studies inverse associations were suggested for consumption of beef (Gronberg et al, 1996) and bacon or side pork (Schuman et al, 1982), and in case-control studies for consumption of poultry or chicken (Schuman et al, 1982;Ross et al, 1987) and liver (Pawlega et al, 1996).…”

Section: Discussionmentioning

confidence: 94%

“…Egg consumption was not associated with prostate cancer risk in all (Snowdon et al, 1984;Mills et al, 1989Thompson et al, 1989Hsing et al, 1990;Le Marchand et al, 1994;Giovannucci et al, 1995;Gronberg et al, 1996) except one cohort study, in which a positive association was indicated (Severson et al, 1989). Results from case-control studies were more diverse, varying from a suggestive inverse association (Ewings and Bowie, 1996), and null associations (Schuman et al, 1982;Talamini et al, 1992;Andersson et al, 1995) to positive associations (Ross et al, 1987;Walker et al, 1992).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Animal products, calcium and protein and prostate cancer risk in the Netherlands Cohort Study

et al. 1999

View full text Add to dashboard Cite

Prostate cancer risk in relation to consumption of animal products, and intake of calcium and protein was investigated in the Netherlands Cohort Study. At baseline in 1986, 58 279 men aged 55–69 years completed a self-administered 150-item food frequency questionnaire and a questionnaire on other risk factors for cancer. After 6.3 years of follow-up, 642 prostate cancer cases were available for analysis. In multivariate case-cohort analyses adjusted for age, family history of prostate cancer and socioeconomic status, no associations were found for consumption of fresh meat, fish, cheese and eggs. Positive trends in risk were found for consumption of cured meat and milk products ( P -values 0.04 and 0.02 respectively). For calcium and protein intake, no associations were observed. The hypothesis that dietary factors might be more strongly related to advanced prostate tumours could not be confirmed in our study. We conclude that, in this study, animal products are not strongly related to prostate cancer risk. © 1999 Cancer Research Campaign

show abstract

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Animal products, calcium and protein and prostate cancer risk in the Netherlands Cohort Study

et al. 1999

View full text Add to dashboard Cite

show abstract

“…Wynder et al (1971), in a comprehensive review of the epidemiology of prostate cancer and also based on interviews with 217 cases and 200 hospital controls, reported no association of this cancer with alcohol intake. Of the other case-control studies that assessed effects of alcohol (Hayes et al, 1996;Mishina et al, 1985;Ross et al, 1987;Tavani et al, 1994;Walker et al, 1992;Yu et al, 1988), only one (Hayes et al, 1996) has reported a substantial increase in risk with alcoholic drinks, in Black and White Americans, whereas cohort studies reported no association (Hiatt et al, 1994;Severson et al, 1989). A cohort study of American men reported that increased consumption of beer was weakly associated with an increased risk of prostate cancer; smoking-adjusted relative risks for ex-users and current drinkers of beer were 1.7 and 1.2, respectively (Hsing et al, 1990).…”

mentioning

confidence: 99%

Alcohol and other beverage use and prostate cancer risk among Canadian men

et al. 1998

View full text Add to dashboard Cite

There are very few large scale studies that have examined the association of prostate cancer with alcohol and other beverages. This relationship was examined in a case‐control study conducted in 3 geographical areas of Canada [Metropolitan Toronto (Ontario), Montreal (Quebec), and Vancouver (British Columbia)] with 617 incident cases and 637 population controls. Complete history of beverage intake was assessed by a personal interview with reference to a 1‐year period prior to diagnosis or interview. In age‐ and energy‐adjusted models for all centers combined, the odds ratio (OR) for the highest quintile of total alcohol intake was 0.89. For alcoholic beverages separately, it was 0.68 for the highest tertile of beer, 1.12 for wine and 0.86 for liquor. The decreasing trend was significant for beer intake. The results were only significant for British Columbia out of all the 3 centers studied. Whereas coffee and cola intake was not associated with prostate cancer, a decrease in risk was observed with tea intake of more than 500 g per day (OR 0.70). Our results do not support a positive association between total alcohol, coffee and prostate cancer. Int. J. Cancer 78:707–711, 1998. © 1998 Wiley‐Liss, Inc.

show abstract

“…Other studies 19,20 that found no relationship between BMI and the risk of prostate cancer reached this conclusion because there was no statistically significant difference between the mean BMI value of males who developed prostate cancer and the mean BMI value of males who did not develop prostate cancer. Our experience with prostate cancer mortality using the NHIS data also indicated that there was no statistically significant difference between the mean BMI values of males who developed prostate cancer and males who did not develop prostate cancer.…”

Section: Survival Time (Years)mentioning

confidence: 70%

Body mass index and the risk of prostate cancer

McGee¹,

Crespo²

2012

OAMS

View full text Add to dashboard Cite

Background: This article presents cohort studies that use data from the National Health Information Survey from 1986 to 1994 and compares the effectiveness of Cox proportional hazards models that assume a linear relationship between body mass index (BMI) and the risk of prostate cancer with models that assume a J-shaped relationship. Methods and results: Our study found that for black males over 40 years of age, neither a linear nor a J-shaped relationship yielded a statistically significant model. With white males over 40 years, assuming a linear relationship did not yield a statistically significant model (P = 0.582). When we assume a J-shaped relationship, the optimal change point where the risk of prostate cancer death is minimized occurs when the BMI is 25.5. Among white males over 40 years with BMI , 25.5, an inverse relationship was found (P = 0.009). Among white males over 40 years with BMI . 25.5, a direct relationship was found (P = 0.017). Conclusion: With this data set, we found that for white males over 40 years, Cox proportional hazards models that assume a J-shaped relationship between BMI and prostate cancer death provide a much better fit than models assuming a linear relationship.

show abstract

Case-control study of prostate cancer in black patients in Soweto, South Africa

Cited by 98 publications

References 14 publications

Animal products, calcium and protein and prostate cancer risk in the Netherlands Cohort Study

Animal products, calcium and protein and prostate cancer risk in the Netherlands Cohort Study

Alcohol and other beverage use and prostate cancer risk among Canadian men

Body mass index and the risk of prostate cancer

Contact Info

Product

Resources

About