Voedingsadvies El MondoResearch Question:
There is evidence that points to a possible role of nutrition in cancer etiology. Preliminary studies that show the relationship between fish consumption and the risk of lung cancer investigated, showed conflicting results. It was therefore carried out this review article.
Eating fish reduces the chances of getting lung cancer?
Study Design:
This overview article contained 17 case-control studies and cohort studies with 8799 3 people with lung cancer and 17072 controls.
There was no publication bias.
Results and conclusions:
The researchers found that eating a lot of fish the chance of getting lung cancer significantly with 21% [RR = 0.79, 95% CI = 0.69-0.92, I2 = 73%, p 0.05] reduced.
The researchers found in case-control studies that eating a lot of fish the chance of getting lung cancer significantly with 24% [RR = 0.76, 95% CI = 0.63-0.91] reduced.
The researchers found in cohort studies that eating a lot of fish the chance of getting lung cancer by 5% non-significant [RR = 0.95, 95% CI = 0.73-1.24] reduced. Non-significant is, there is no link to a 95% reliability.
The researchers concluded that eating a lot of fish the chance of getting lung cancer may be reduced. Possibly because it was not significantly reduced risk found in cohort studies.
Original title:
Fish consumption and lung cancer risk: systematic review and meta-analysis by Song J, Su H, [...], Guo LL.
Link:
http://www.ncbi.nlm.nih.gov/pubmed/24707954
Additional information about El Mondo:
Find here more information about cohort and case-control studies and on fish consumption.