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Case-control study, 2002

Does mercury exposure at work affect period pain and menstrual symptoms?

Yes, women exposed to mercury vapor at work have significantly higher rates of period pain and cramping. Since this is observational research, it shows association but not definite causation.

Moderate study design 296 women exposed to mercury vapor and 394 control workers in China, ages 18-44

What they did

Compared 296 female workers exposed to mercury vapor with 394 women from food processing plants (control group). All were ages 18-44 and had worked at their location for at least 1 year.

What they found

Mercury-exposed women had significantly higher prevalence of abdominal pain (odds ratio 1.47, 95% CI 1.03-2.11) and dysmenorrhea (odds ratio 1.66, 95% CI 1.07-2.59) compared to controls.

What it means for you

Mercury exposure at work is associated with increased menstrual pain. This is observational data from China, so it shows association rather than proving direct causation. Results may not apply to other countries or workplace settings.

296

women exposed to mercury

OR 1.47

abdominal pain odds ratio

OR 1.66

dysmenorrhea odds ratio

About the study

Original title
Effects of metallic mercury on the perimenstrual symptoms and menstrual outcomes of exposed workers
Authors
Yang JM, Chen QY, Jiang XZ
Journal
American journal of industrial medicine
Year
2002
Study design
Case-control study
Participants
394
What was tested
Occupational mercury vapor exposure (not a clinical trial)

Topics