著者

Michiko NOHARA Mikio MOMOEDA Toshiro KUBOTA Masao NAKABAYASHI

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.49, no.2, pp.228-234, 2011 (Released:2011-04-14)

参考文献数

22

被引用文献数

27 69

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Women’s employment in Japan has increased substantially in recent decades, however little large scale research has been done on the impact of various types of working conditions on women’s health. The aim of this study was to assess the menstrual cycle and menstrual pain problems of female workers and to investigate the factors that relate to them. The questionnaire was distributed to 8,150 women and 2,166 responded (26.6%). An anonymous self-administered questionnaire was used to get information about demographics, menstrual cycle status, the degree of menstrual pain, and employment and environmental factors. Irregular cycle menstruation was experienced in 17.1% of responded workers. We discovered the relationship between irregular menstrual cycles and stress, smell of cigarettes, age and smoking habits. Some degree of menstrual pain was experienced in 77.6% of responded workers. This study showed the relationship between menstrual pain and stress, high temperature and humidity, age, BMI, and number of births. In conclusion, we found that stress is thought to be an important factor related with menstrual cycle irregularities and menstrual pain among Japanese female workers.

著者

Toshiyuki Yasui Kunihiko Hayashi Kazue Nagai Hideki Mizunuma Toshiro Kubota Jung-Su Lee Shosuke Suzuki

出版者

日本疫学会

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20140124, (Released:2015-01-31)

参考文献数

25

被引用文献数

13

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Background: The prevalence and risk factors for endometriosis may differ according to diagnosis methodologies, such as study populations and diagnostic accuracy. We examined risk profiles in imaging-diagnosed endometriosis with and without surgical confirmation in a large population of Japanese women, as well as the differences in risk profiles of endometriosis based on history of infertility.Methods: Questionnaires that included items on sites of endometriosis determined by imaging techniques and surgical procedure were mailed to 1025 women who self-reported endometriosis in a baseline survey of the Japan Nurses’ Health Study (n = 15 019).Results: Two hundred and ten women had surgically confirmed endometriosis (Group A), 120 had imaging-diagnosed endometriosis without a surgical procedure (Group B), and 264 had adenomyosis (Group C). A short menstrual cycle at 18–22 years of age and cigarette smoking at 30 years of age were associated with significantly increased risk of endometriosis (Group A plus Group B), while older age was associated with risk of adenomyosis (Group C). In women with a history of infertility, a short menstrual cycle was associated with a significantly increased risk of endometriosis in both Group A and Group B, but risk profiles of endometriosis were different between Group A and Group B in women without a history of infertility.Conclusions: Women with surgically confirmed endometriosis and those with imaging-diagnosed endometriosis without surgery have basically common risk profiles, but these risk profiles are different from those with adenomyosis. The presence of a history of infertility should be taken into consideration for evaluation of risk profiles.