(STUDYFINDS) -- PHILADELPHIA — Working nights can be difficult for many people to get used to, but there’s even more reason now for women to avoid jobs that requires overnight hours. A recent study finds that women who work night shifts in many different industries may carry a higher risk of certain types of cancer, according to the the American Association for Cancer Research (AACR).
Dr. Xuelei Ma, an oncologist at Sichuan University in China and co-author of the research, analyzed whether working nights was associated with 11 different types of cancer. Ma and her team analyzed data from 61 articles covering nearly 115,000 cancer cases and more than 3.9 million participants from North America, Europe, Australia, and Asia.
The authors found that overnight work increased the chances of developing cancer by 19% overall in women, according to the analysis. More specifically, night workers had a 41% increased chance of contracting skin cancer, 32% risk of breast cancer, and 18% risk of gastrointestinal cancer compared to women who don’t work overnight. They also found that one’s risk of breast cancer jumped 3.3 percent for every five years of nightside work.
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