Published in:
01-06-2019 | Original Contribution
The association between the inflammatory potential of diet and risk of developing, and survival following, a diagnosis of ovarian cancer
Authors:
C. M. Nagle, T. Ibiebele, N. Shivappa, J. R. Hébert, A. DeFazio, P. M. Webb, for the Australian Ovarian Cancer Study
Published in:
European Journal of Nutrition
|
Issue 4/2019
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Abstract
Purpose
Inflammation has been implicated in ovarian carcinogenesis. This study evaluated two dietary indices: the Dietary Inflammatory Index (DII®) and the Empirical Dietary Inflammatory Pattern (EDIP), in relation to risk of developing, and survival following, a diagnosis of ovarian cancer.
Methods
Data came from the Australian Ovarian Cancer Study (1375 cases, 1415 population controls). DII and EDIP scores were computed from dietary information obtained using a semiquantitative food-frequency questionnaire. Logistic regression was used to assess the association between DII and EDIP scores and risk of ovarian cancer and proportional hazards models were used for survival analysis.
Results
A high DII score, reflecting a more pro-inflammatory diet, was associated with a modest increased risk of ovarian cancer [odds ratio (OR) DII scoreQ4 vs.Q1 = 1.31, 95% CI 1.06–1.63, ptrend = 0.014]. Likewise a high EDIP score was associated with an increase in risk of ovarian cancer [OR EDIP scoreQ4 vs.Q1 = 1.39, 95% confidence interval (CI) 1.12–1.73, ptrend = 0.002]. We found no association between DII or EDIP score and overall or ovarian cancer-specific survival.
Conclusion
In conclusion, our results suggest that a pro-inflammatory diet modestly increases the risk of developing ovarian cancer.