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Cohort study, 2006

Do different ways of defining PMS give different prevalence rates?

Yes. PMS prevalence ranged from 19% to 30% depending on the definition used. However, all definitions showed that PMS reduces quality of life and work productivity.

Early or limited evidence Women aged 18-64 years

What they did

Researchers compared different PMS definitions using data from women aged 18-64 who kept daily records of emotional and physical symptoms and work productivity. They measured quality of life using the SF-36 questionnaire and compared outcomes between women with and without PMS.

What they found

PMS prevalence ranged from 19% to 30% across definitions. Women with PMS had mental health scores 5 to 12 points lower than women without PMS. Women with PMS experienced 4 additional days per month with reduced work productivity.

What it means for you

How doctors define PMS changes how common they say it is. But PMS reduces quality of life and work regardless of which definition is used. The main limitation is the small sample size.

19-30%

PMS prevalence range across definitions

5-12 points

lower mental health scores with PMS

4 days/month

additional days with reduced work productivity

About the study

Original title
Evaluating the criteria used for identification of PMS
Authors
Dean BB, Borenstein JE, Knight K et al.
Journal
Journal of women's health (2002)
Year
2006
Study design
Cohort study
Participants
12
What was tested
No intervention.

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