Dietary Fat and Skin Cancer Risk in Australia
Author Information
Author(s): Robert H Granger, Leigh Blizzard, Jayne L Fryer, Terence Dwyer
Primary Institution: Menzies Research Institute, Hobart, Australia
Hypothesis
Is there an association between dietary fat intake and the risk of developing cutaneous malignant melanoma and non-melanoma skin cancers?
Conclusion
The study found no evidence that high fat intake increases the risk of developing melanoma or non-melanoma skin cancers, suggesting a risk reduction instead.
Supporting Evidence
- The odds ratios for medium and high fat intake were 0.76 and 0.62, respectively, compared to the lowest fat intake category.
- The incidence rate ratios for subsequent non-melanoma skin cancer were 0.72 and 0.82 for medium and high fat intake, respectively.
Takeaway
Eating a lot of fat doesn't seem to make you more likely to get skin cancer; in fact, it might even help lower the risk.
Methodology
The study used case-control and cohort designs, comparing dietary fat intake among cases of skin cancer and controls.
Potential Biases
Potential residual confounding due to unmeasured dietary factors.
Limitations
The dietary fat assessment instrument may have imprecision, and total energy consumption was not measured.
Participant Demographics
Participants were aged 20-59 years of northern European ancestry from Tasmania, Australia.
Statistical Information
P-Value
p < 0.01
Confidence Interval
95% CI: 0.56–1.03 for medium fat intake; 95% CI: 0.45–0.85 for high fat intake
Statistical Significance
p < 0.01
Digital Object Identifier (DOI)
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