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Dairy products, dietary calcium and vitamin D intake as risk factors for prostate cancer: a meta-analysis of 26,769 cases from 45 observational studies.
Nutr Cancer 2008; 60(4):421-41NC

Abstract

In this study, we examined the available evidence and sources of heterogeneity for studies of dairy products, calcium, and vitamin D intake and the risk of prostate cancer. We pooled data from 45 observational studies using a general variance-based, meta-analytic method employing CIs. Summary relative risks (RRs) were calculated for specific dairy products such as milk and dairy micronutrients. Sensitivity analyses were performed to test the robustness of these summary measures of effect. Cohort studies showed no evidence of an association between dairy [RR = 1.06; 95% confidence interval (CI) = 0.92-1.22] or milk intake (RR = 1.06; 95% CI = 0.91-1.23) and risk of prostate cancer. This was supported by pooled results of case-control analyses (RR = 1.14; 95% CI = 1.00-1.29), although studies using milk as the exposure of interest were heterogeneous and could not be combined. Calcium data from cohort studies were heterogeneous. Case-control analyses using calcium as the exposure of interest demonstrated no association with increased risk of prostate cancer (RR = 1.04; 95% CI = 0.90-1.15). Dietary intake of vitamin D also was not related to prostate cancer risk (RR = 1.16; 95% CI = 0.98-1.38). The data from observational studies do not support an association between dairy product use and an increased risk of prostate cancer.

Authors+Show Affiliations

Division of Preventive Medicine, University of South Carolina School of Medicine, Columbia, South Carolina 29209, USA. info@metaresearchgroup.org

Pub Type(s)

Journal Article
Meta-Analysis
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18584476

Citation

Huncharek, Michael, et al. "Dairy Products, Dietary Calcium and Vitamin D Intake as Risk Factors for Prostate Cancer: a Meta-analysis of 26,769 Cases From 45 Observational Studies." Nutrition and Cancer, vol. 60, no. 4, 2008, pp. 421-41.
Huncharek M, Muscat J, Kupelnick B. Dairy products, dietary calcium and vitamin D intake as risk factors for prostate cancer: a meta-analysis of 26,769 cases from 45 observational studies. Nutr Cancer. 2008;60(4):421-41.
Huncharek, M., Muscat, J., & Kupelnick, B. (2008). Dairy products, dietary calcium and vitamin D intake as risk factors for prostate cancer: a meta-analysis of 26,769 cases from 45 observational studies. Nutrition and Cancer, 60(4), pp. 421-41. doi:10.1080/01635580801911779.
Huncharek M, Muscat J, Kupelnick B. Dairy Products, Dietary Calcium and Vitamin D Intake as Risk Factors for Prostate Cancer: a Meta-analysis of 26,769 Cases From 45 Observational Studies. Nutr Cancer. 2008;60(4):421-41. PubMed PMID: 18584476.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dairy products, dietary calcium and vitamin D intake as risk factors for prostate cancer: a meta-analysis of 26,769 cases from 45 observational studies. AU - Huncharek,Michael, AU - Muscat,Joshua, AU - Kupelnick,Bruce, PY - 2008/6/28/pubmed PY - 2008/11/11/medline PY - 2008/6/28/entrez SP - 421 EP - 41 JF - Nutrition and cancer JO - Nutr Cancer VL - 60 IS - 4 N2 - In this study, we examined the available evidence and sources of heterogeneity for studies of dairy products, calcium, and vitamin D intake and the risk of prostate cancer. We pooled data from 45 observational studies using a general variance-based, meta-analytic method employing CIs. Summary relative risks (RRs) were calculated for specific dairy products such as milk and dairy micronutrients. Sensitivity analyses were performed to test the robustness of these summary measures of effect. Cohort studies showed no evidence of an association between dairy [RR = 1.06; 95% confidence interval (CI) = 0.92-1.22] or milk intake (RR = 1.06; 95% CI = 0.91-1.23) and risk of prostate cancer. This was supported by pooled results of case-control analyses (RR = 1.14; 95% CI = 1.00-1.29), although studies using milk as the exposure of interest were heterogeneous and could not be combined. Calcium data from cohort studies were heterogeneous. Case-control analyses using calcium as the exposure of interest demonstrated no association with increased risk of prostate cancer (RR = 1.04; 95% CI = 0.90-1.15). Dietary intake of vitamin D also was not related to prostate cancer risk (RR = 1.16; 95% CI = 0.98-1.38). The data from observational studies do not support an association between dairy product use and an increased risk of prostate cancer. SN - 1532-7914 UR - https://www.unboundmedicine.com/medline/citation/18584476/Dairy_products_dietary_calcium_and_vitamin_D_intake_as_risk_factors_for_prostate_cancer:_a_meta_analysis_of_26769_cases_from_45_observational_studies_ L2 - http://www.tandfonline.com/doi/full/10.1080/01635580801911779 DB - PRIME DP - Unbound Medicine ER -