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Dietary inflammatory index and prostate cancer risk in a case-control study in Mexico.
Br J Nutr 2016; 116(11):1945-1953BJ

Abstract

Recent evidence suggests that a pro-inflammatory diet could be associated with prostate cancer (PC) risk. To evaluate the association between dietary inflammatory index (DII) and PC risk as well as aggressiveness, we conducted a case-control study in Mexico City. Cases were 394 individuals with incident, histologically confirmed PC, who were matched by age (±5 years) with 794 population controls. Dietary information was obtained through a semi-quantitative FFQ with a 3-year frame of reference before diagnosis, for cases, or interview, for controls. On the basis of twenty-eight food parameters, we estimated the energy-adjusted DII (E-DII). According to the Gleason score at diagnosis, PC cases were categorised as high (≥8), moderate (=7) and low (≤6) PC risk. Independent, unconditional logistic regression models adjusted for potential confounders were used to estimate PC risk and PC aggressiveness. There were no significant associations between overall PC risk and E-DII (OR3rd v. 1st tertile 1·18; 95 % CI 0·85, 1·63; P=0·33) or among men with high-risk PC (Gleason≥8) (OR 1·46; 95 % CI 0·88, 2·42; P=0·14). These results do not support the hypothesis that a pro-inflammatory diet is related to PC risk and PC aggressiveness. However, further studies with larger sample sizes, with sufficient statistical power and of varying designs should be conducted to address this hypothesis.

Authors+Show Affiliations

1Instituto Nacional de Salud Pública (INSP),Av. Universidad 655,Col. Sta. María Ahuacatitlán,62100 Cuernavaca,Morelos,México.2Cancer Prevention and Control Program,University of South Carolina,915 Greene St.,Columbia,SC 29208USA.1Instituto Nacional de Salud Pública (INSP),Av. Universidad 655,Col. Sta. María Ahuacatitlán,62100 Cuernavaca,Morelos,México.1Instituto Nacional de Salud Pública (INSP),Av. Universidad 655,Col. Sta. María Ahuacatitlán,62100 Cuernavaca,Morelos,México.2Cancer Prevention and Control Program,University of South Carolina,915 Greene St.,Columbia,SC 29208USA.1Instituto Nacional de Salud Pública (INSP),Av. Universidad 655,Col. Sta. María Ahuacatitlán,62100 Cuernavaca,Morelos,México.

Pub Type(s)

Journal Article
Multicenter Study

Language

eng

PubMed ID

27927252

Citation

Vázquez-Salas, Ruth A., et al. "Dietary Inflammatory Index and Prostate Cancer Risk in a Case-control Study in Mexico." The British Journal of Nutrition, vol. 116, no. 11, 2016, pp. 1945-1953.
Vázquez-Salas RA, Shivappa N, Galván-Portillo M, et al. Dietary inflammatory index and prostate cancer risk in a case-control study in Mexico. Br J Nutr. 2016;116(11):1945-1953.
Vázquez-Salas, R. A., Shivappa, N., Galván-Portillo, M., López-Carrillo, L., Hébert, J. R., & Torres-Sánchez, L. (2016). Dietary inflammatory index and prostate cancer risk in a case-control study in Mexico. The British Journal of Nutrition, 116(11), pp. 1945-1953. doi:10.1017/S0007114516003986.
Vázquez-Salas RA, et al. Dietary Inflammatory Index and Prostate Cancer Risk in a Case-control Study in Mexico. Br J Nutr. 2016;116(11):1945-1953. PubMed PMID: 27927252.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dietary inflammatory index and prostate cancer risk in a case-control study in Mexico. AU - Vázquez-Salas,Ruth A, AU - Shivappa,Nitin, AU - Galván-Portillo,Marcia, AU - López-Carrillo,Lizbeth, AU - Hébert,James R, AU - Torres-Sánchez,Luisa, Y1 - 2016/12/08/ PY - 2016/12/9/pubmed PY - 2017/5/16/medline PY - 2016/12/9/entrez KW - DII dietary inflammatory index KW - E-DII energy-adjusted dietary inflammatory index KW - PA physical activity KW - PC prostate cancer KW - Aggressiveness KW - Dietary inflammatory index KW - Mexico KW - Prostate cancer SP - 1945 EP - 1953 JF - The British journal of nutrition JO - Br. J. Nutr. VL - 116 IS - 11 N2 - Recent evidence suggests that a pro-inflammatory diet could be associated with prostate cancer (PC) risk. To evaluate the association between dietary inflammatory index (DII) and PC risk as well as aggressiveness, we conducted a case-control study in Mexico City. Cases were 394 individuals with incident, histologically confirmed PC, who were matched by age (±5 years) with 794 population controls. Dietary information was obtained through a semi-quantitative FFQ with a 3-year frame of reference before diagnosis, for cases, or interview, for controls. On the basis of twenty-eight food parameters, we estimated the energy-adjusted DII (E-DII). According to the Gleason score at diagnosis, PC cases were categorised as high (≥8), moderate (=7) and low (≤6) PC risk. Independent, unconditional logistic regression models adjusted for potential confounders were used to estimate PC risk and PC aggressiveness. There were no significant associations between overall PC risk and E-DII (OR3rd v. 1st tertile 1·18; 95 % CI 0·85, 1·63; P=0·33) or among men with high-risk PC (Gleason≥8) (OR 1·46; 95 % CI 0·88, 2·42; P=0·14). These results do not support the hypothesis that a pro-inflammatory diet is related to PC risk and PC aggressiveness. However, further studies with larger sample sizes, with sufficient statistical power and of varying designs should be conducted to address this hypothesis. SN - 1475-2662 UR - https://www.unboundmedicine.com/medline/citation/27927252/Dietary_inflammatory_index_and_prostate_cancer_risk_in_a_case_control_study_in_Mexico_ L2 - https://www.cambridge.org/core/product/identifier/S0007114516003986/type/journal_article DB - PRIME DP - Unbound Medicine ER -