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Cohort study, 2015

Do women with PMS have a higher risk of developing hypertension later?

Yes, women with PMS had 1.4 times higher risk of developing hypertension, with 3.3 times higher risk before age 40. This prospective study with long follow-up provides strong evidence.

Strong study design 1,257 women with clinically significant PMS and 2,463 comparison women from Nurses' Health Study II

What they did

Prospective follow-up study (Nurses' Health Study II) comparing 1,257 women with clinically significant PMS against 2,463 comparison women with few menstrual symptoms. Women were followed from 1991-2005 (when PMS status was assessed) through 2011 to track who developed hypertension, providing 6-20 years of follow-up.

What they found

Over the follow-up period, 342 women with PMS developed hypertension compared with 541 women without PMS. After adjusting for age, smoking, body mass index and other risk factors, women with PMS had a hazard ratio of 1.4 (95% CI 1.2-1.6) for hypertension. For hypertension occurring before age 40, the hazard ratio was even higher at 3.3 (95% CI 1.7-6.5). Risk was attenuated in women with high intakes of thiamine and riboflavin.

What it means for you

Women with PMS appear to have a substantially higher risk of developing hypertension, particularly earlier in life. The finding that B vitamin intake appears to reduce this risk suggests that nutrient deficiencies may partly explain the link between PMS and hypertension. This was a large, well-designed prospective study with long follow-up, providing strong evidence.

1.4

hazard ratio for hypertension with PMS (95% CI 1.2-1.6)

3.3

hazard ratio for hypertension before age 40 (95% CI 1.7-6.5)

6-20

years of follow-up

About the study

Original title
Premenstrual Syndrome and Subsequent Risk of Hypertension in a Prospective Study
Authors
Bertone-Johnson ER, Whitcomb BW, Rich-Edwards JW et al.
Journal
American journal of epidemiology
Year
2015
Study design
Cohort study
Participants
1,257
What was tested
None; observational study of PMS and hypertension risk
Open access
Yes

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