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Cohort study, 1997

Are PMS symptoms the same from cycle to cycle?

Yes. Mood symptoms like anxiety and irritability are the most stable. These mood symptoms, not physical symptoms, cause most of the impact on daily life.

Early or limited evidence 16 women with PMS

What they did

16 women with PMS reported symptoms over 3 or more cycles (65 cycles total). Researchers tracked 14 different symptoms and grouped them into mood and physical clusters.

What they found

Mood symptoms were the most common. Anxiety, irritability, and mood changes showed the most stability across cycles. Only mood symptoms strongly correlated with functional impairment.

What it means for you

PMS follows a consistent pattern. Mood problems, not physical ones, cause most functional impact. Women's PMS may fit with mood disorders. Limitation: only 16 women studied.

16

women studied

65

menstrual cycles analyzed

14

symptoms tracked

About the study

Original title
Premenstrual syndrome: evidence for symptom stability across cycles
Authors
Bloch M, Schmidt PJ, Rubinow DR
Journal
The American journal of psychiatry
Year
1997
Study design
Cohort study
Participants
16
What was tested
None

Topics