Conclusion
In conclusion, the meta-analysis suggested that a higher BW was relative
to a higher risk of overall cancer. And BW had a dose-response
relationship with breast cancer and testicular cancer. Meanwhile, our MR
analysis found that there was no obvious casual association between BW
and overall cancer. This suggested that BW was not an direct factor in
cancer prevention. It’s still a long way to go and more researches are
needed to explore the potential mechanism between BW and the risk of
cancers.