Nurses at greater breast cancer risk than other night shift workers
Nurses have the highest risk of developing breast cancer among night shift workers, researchers say.
The study shows that among female nurses, those who worked night shifts had a 58% increased risk of breast cancer, 35% of gastrointestinal and 28% of lung cancer compared with those that did not work night shifts.
Researchers from Sichuan University in China performed a meta-analysis using data from 61 articles covering 114,628 cancer cases and 3,909,152 participants from North America, Europe, Australia and Asia.
The studies were analysed for an association between long-term night shift work and risk of 11 types of cancer. A further analysis looked specifically at long-term night shift work and the risk of six types of cancer among female nurses.
Overall, long-term night shift work among women increased the risk of cancer by 19%.
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