Study shows increased risk of cancer among US flight attendants

A new study from Harvard T.H. Chan School of Public Health has revealed that several types of cancer are more common among US flight attendants than they are among the general population.

© hxdyl/

The authors of the research say the findings suggest that efforts should be made to reduce the risk of cancer among flight crew members.

The study showed higher rates of breast cancer, gastrointestinal cancer, cervical cancer, thyroid cancer, uterine cancer and non-melanoma skin cancer amongst the flight attendants.

Study author Irina Mordukhovich says:

Our findings of higher rates of several cancers among flight attendants is striking given the low rates of overweight and smoking in our study population, which highlights the question of what can be done to minimize the adverse exposures and cancers common among cabin crew."

Cabin crew members are regularly exposed to known cancer-causing factors such as cosmic ionizing radiation, sleep cycle and circadian rhythm disruption, as well as potential contaminants within the plane. Compared with other US workers exposed to radiation, cabin crews are subject to the largest annual ionizing radiation dose due to their exposure to cosmic radiation.

Although these risk factors are known, cabin crews have not previously been included in the Occupational Safety and Health Administration protections that usually help safeguard workers in the U.S. In 2014, some protections were introduced; however, these do not involve the monitoring or regulation of exposure to radiation.

As reported in the journal Environmental Health, study leader Eileen McNeely and team analysed a survey involving 5,366 US. flight attendants that was conducted between 2014 and 2015. The participants answered questions about their health outcomes and symptoms, personal characteristics, work experience and their history of employment in the aviation industry.

Cancer rates amongst the cabin crew were compared with those reported by around 5,000 U.S. residents in the National Health and Nutrition Examination Survey.

The findings revealed that the attendants had higher rates of every cancer assessed, particularly breast cancer, melanoma, and non-melanoma skin cancer among women.

The authors recommend that further efforts be made in the US to limit cancer risk among this work population such as radiation dose monitoring and the implementation of schedules that will lower exposure to radiation and prevent the disruption of circadian rhythms.

"The E.U. already evaluates radiation exposure among flight attendants, which our findings show may be an important step toward lowering cancer risk among this work population,” says McNeely.


Sally Robertson

Written by

Sally Robertson

Sally has a Bachelor's Degree in Biomedical Sciences (B.Sc.). She is a specialist in reviewing and summarising the latest findings across all areas of medicine covered in major, high-impact, world-leading international medical journals, international press conferences and bulletins from governmental agencies and regulatory bodies. At News-Medical, Sally generates daily news features, life science articles and interview coverage.


Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Robertson, Sally. (2018, August 23). Study shows increased risk of cancer among US flight attendants. News-Medical. Retrieved on December 02, 2020 from

  • MLA

    Robertson, Sally. "Study shows increased risk of cancer among US flight attendants". News-Medical. 02 December 2020. <>.

  • Chicago

    Robertson, Sally. "Study shows increased risk of cancer among US flight attendants". News-Medical. (accessed December 02, 2020).

  • Harvard

    Robertson, Sally. 2018. Study shows increased risk of cancer among US flight attendants. News-Medical, viewed 02 December 2020,


The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
You might also like... ×
Machine learning model identifies which drug combinations kill tumor cells