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This Week in JAMA
July 9, 2003

This Week in JAMA

JAMA. 2003;290(2):157. doi:10.1001/jama.290.2.157

Data from National Health and Nutrition Examination Surveys (NHANES) from 1960 through 1991 suggest that the prevalence of hypertension in the US population is decreasing, but self-reported rates of hypertension in Behavioral Risk Factor Surveillance System surveys were higher in 1999 than in 1991. In this analysis of data from the 1999-2000 NHANES, Hajjar and Kotchen report that 28.7% of NHANES participants had hypertension, an increase of 3.7% from the 1988-1991 NHANES. Hypertension control rates increased slightly, but were still low.

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Dietary supplements containing isoflavones derived from soy or red clover are increasingly being used as alternative treatments for menopausal symptoms. Tice and colleagues conducted a randomized trial among menopausal women who were experiencing 35 or more hot flashes per week to compare the efficacy of 2 dietary supplements derived from red clover, Promensil and Rimostil, with placebo. After 12 weeks of treatment, reductions in hot flashes and improvements in quality of life were not significantly different in the 3 study groups.