Subtype of Dietary Fat in Relation to Risk of Hodgkin Lymphoma: A Population-based Case-Control Study in Connecticut and Massachusetts
Abstract
Few epidemiological studies have examined the relationship between dietary fat, which may affect immune function and risk of Hodgkin lymphoma (HL). The aim of this study was to test the hypothesis that high dietary intake of fat and specific subtypes of fat is associated with the risk of HL among 486 HL cases and 630 population-based controls recruited between 1997 and 2000 in Connecticut and Massachusetts. Unconditional logistic regression was used to calculate odds ratios (ORs) and 95 % confidence intervals (CIs) stratified by age and gender. Among younger adults, HL risk was significantly and positively associated with higher intake of saturated fat [ORs for increasing quartiles = 1.3, 1.8, and 2.1; p trend = 0.04] and negatively associated with higher intake of monounsaturated fat [ORs for increasing quartiles = 0.5, 0.5, and 0.4; p trend = 0.03), after adjustment for potential confounders including lifestyle and other dietary factors. The associations with saturated fat (ORs for increasing quartile = 2.4, 3.2, and 4.4; p trend < 0.01] and monounsaturated fat (ORs for increasing quartile = 0.3, 0.6, and 0.3; p trend = 0.04) were most apparent in younger women, whereas there was no significant association between intake of total fat or any type of fat and risk of HL in older females or younger or older males. These findings show that the associations between dietary fat and risk of HL may vary by gender and age and require confirmation in other populations.
How strong is the evidence?
Evidence Hub reads this as a case-control, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause.
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