Dietary inflammatory index and risk of renal cancer in the Iowa Women’s Health Study

Shivappa, Nitin; Blair, Cindy K.; Prizment, Anna E.; Jacobs, David R.; Hébert, James R.

doi:10.1007/s00394-017-1403-5

Cited by 48 publications

(50 citation statements)

References 56 publications

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“…This difference among studies may be the result of small sample sizes, study design or population substructure, or other factors. For kidney cancer, the pooled adjusted RR of kidney cancer for the highest DII score versus the lowest category was 1.46 (95% CI: 1.16–1.85), which is consistent with that in previous studies [ 24 , 27 ]. For bladder cancer and urothelial cell carcinoma, participants in the highest category of DII score were associated with an increased risk of bladder cancer (RR = 1.97, 95% CI: 1.28–3.03) compared with those in the lowest DII category [ 26 ].…”

Section: Discussionsupporting

confidence: 90%

Meta-analysis of the association between the inflammatory potential of diet and urologic cancer risk

Ren

Zhang

et al. 2018

PLoS ONE

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BackgroundThe inflammatory potential of diet has been shown to have an association with the risk of several cancer types, but the evidence is inconsistent regarding the related risk of urologic cancer (UC). Therefore, we conducted the present meta-analysis to investigate the association between the inflammatory potential of diet and UC.MethodsPubMed, Embase and Web of Science were searched up to July 31, 2018. Two reviewers independently selected the studies and extracted the data. The pooled risk ratio (RR) and its 95% confidence interval (CI) were calculated using the Stata12.0 software package.ResultsNine case-control studies and three cohort studies including 83,197 subjects met the inclusion criteria. The overall meta-analysis results showed that individuals with the highest category of DII (dietary inflammatory index) were associated with an increased risk of prostate cancer (RR = 1.62, 95% CI: 1.30–2.02); subgroup analysis showed consistent results. For kidney and bladder cancer, significant positive associations were found in individuals with the highest category of DII score; however, no significant association was found between DII and the risk of urothelial cell carcinoma (UCC).ConclusionAvailable data suggest that more pro-inflammatory diets are associated with an increased risk of prostate cancer, kidney cancer and bladder cancer. However, further well designed large-scaled cohort studies are warranted to provide more conclusive evidence.

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Section: Discussionsupporting

confidence: 90%

Meta-analysis of the association between the inflammatory potential of diet and urologic cancer risk

Ren

Zhang

et al. 2018

PLoS ONE

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“…Detailed reasons for exclusions are provided in Figure 1. Eleven studies, with a total of 1,187,474 participants and 28,614 incident cases, were prospective cohort studies (43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53), and 29 studies involving 19,718 cases and 33,229 controls had a case-control design . Nine studies were conducted in the United States (45, 47-49, 51-54, 59), 2 studies were from Canada (60, 78), 5 studies were from Asia (55,57,64,67,73), 2 studies were from Australia (43,46), 1 was from Mexico (81), 1 was from Jamaica (77), and 20 studies were from Europe (14 from Italy) (44, 50, 56, 58, 61-63, 65, 66, 68-72, 74-76, 79, 80, 82).…”

Section: Resultsmentioning

confidence: 99%

Dietary Inflammatory Index and Site-Specific Cancer Risk: A Systematic Review and Dose-Response Meta-Analysis

Jayedi

Emadi

Shab‐Bidar

2018

Advances in Nutrition

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Existing evidence suggests a link between the inflammatory potential of diet and risk of cancer. This study aimed to test the linear and potential nonlinear dose-response associations of the Dietary Inflammatory Index (DII), as being representative of inflammatory features of the diet, and site-specific cancer risk. A systematic search was conducted with the use of PubMed and Scopus from 2014 to November 2017. Prospective cohort or case-control studies reporting the risk estimates of any cancer type for ≥3 categories of the DII were selected. Studies that reported the association between continuous DII score and cancer risk were also included. Pooled RRs were calculated by using a random-effects model. Eleven prospective cohort studies (total n = 1,187,474) with 28,614 incident cases and 29 case-control studies with 19,718 cases and 33,229 controls were identified. The pooled RRs for a 1-unit increment in the DII were as follows: colorectal cancer, 1.06 (95% CI: 1.04, 1.08; I2 = 72.5%; n = 9); breast cancer, 1.03 (95% CI: 1.00, 1.07; I2 = 84.0%; n = 7); prostate cancer, 1.06 (95% CI: 0.97, 1.15; I2 = 56.2%; n = 6); pancreatic cancer, 1.16 (95% CI: 1.05, 1.28; I2 = 61.6%; n = 2); ovarian cancer, 1.08 (95% CI: 1.03, 1.13; I2 = 0%; n = 2); esophageal squamous cell carcinoma, 1.24 (95% CI: 1.10, 1.38; I2 = 64.3%; n = 2); renal cell carcinoma, 1.08 (95% CI: 1.02, 1.13; I2 = 0%; n = 2); and esophageal adenocarcinoma, 1.26 (95% CI: 1.13, 1.39; I2 = 0%; n = 2). A nonlinear dose-response meta-analysis showed that, after a somewhat unchanged risk within initial scores of the DII, the risk of colorectal cancer increased linearly with increasing DII score. In the analyses of breast and prostate cancers, the risk increased with a very slight trend with increasing DII score. In conclusion, the results showed that dietary habits with high inflammatory features might increase the risk of site-specific cancers.

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“…High scores of this DII have been positively associated with a variety of cancers, including colorectal cancer (17, 18), and esophageal cancer (19–21) and, among urological cancers, prostate (22, 23), bladder cancers (24) renal cancer (25) and urothelial cancer (26). Using this case-control study conducted in Italy (27), this is the first attempt to examine the association between the DII and RCC risk.…”

Section: Introductionmentioning

confidence: 99%

Dietary Inflammatory Index and Renal Cell Carcinoma Risk in an Italian Case–Control Study

Shivappa

Hébert

Rosato

et al. 2017

Nutrition and Cancer

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Background: The relation between diet related inflammation and renal cell carcinoma (RCC) has not been investigated. Methods: In this study, we explored the association between the dietary inflammatory index (DII) and RCC in an Italian case-control study conducted between 1992 and 2004. Cases were 767 patients with incident, histologically confirmed RCC. Controls were 1534 subjects admitted to the same hospitals as cases for various acute, non-neoplastic conditions. The DII was computed based on dietary intake assessed using a reproducible and validated 78-item food frequency questionnaire. Odds ratios were estimated through logistic regression models conditioned on age, sex and center, and adjusted for recognised confounding factors, including total energy intake. Results: Subjects in the highest quartile of DII scores (i.e., with a more pro-inflammatory diet) had a higher risk of RCC compared to subjects in the lowest quartile (OR 1.41, 95% CI 1.02, 1.97; p-trend=0.04). Apparently stronger associations were observed among females (OR 1.68, 95% CI 0.93, 3.03), subjects aged <60years (OR 1.77, 95% CI 1.05, 2.98), BMI ≥25 kg/m2 (OR 1.64, 95% CI 1.07, 2.51), and ever smokers (OR 1.66, 95% CI 1.08, 2.57), in the absence of significant heterogeneity. Conclusion: A pro-inflammatory diet is associated with increased RCC risk.

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Dietary inflammatory index and risk of renal cancer in the Iowa Women’s Health Study

Cited by 48 publications

References 56 publications

Meta-analysis of the association between the inflammatory potential of diet and urologic cancer risk

Meta-analysis of the association between the inflammatory potential of diet and urologic cancer risk

Dietary Inflammatory Index and Site-Specific Cancer Risk: A Systematic Review and Dose-Response Meta-Analysis

Dietary Inflammatory Index and Renal Cell Carcinoma Risk in an Italian Case–Control Study

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