January 9, 2018

Night shift work increases risk of cancers in women

By: Judy Mathias
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Editor’s Note

This meta-analysis of 61 articles (involving 3,909,152 patients) finds a positive relationship between long-term night shift work and several common cancers in women, including breast, digestive system, and skin cancers.

A subgroup analysis found that for every 5 years of night shift work, the risk of breast cancer increased by 3.3%.

In a subgroup of nurses, long-term night shift work was associated with breast, digestive system, and lung cancer.

It is imperative that long-term female night shift workers have regular cancer screenings, and appropriate protection measures should be taken, the authors note.

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