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Effects of Individual Components of Multiple Behavior Changes: The PREMIER Trial

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Objectives : To assess contributions of individual lifestyle changes on systolic blood pressure (SBP) changes.

Methods : We examined associations between lifestyle behavior changes and SBP after 6 and 18 months in 782 PREMIER trial participants.

Results : In multivariate models omitting weight, predicted SBP reductions ranged from 1/2 to 11/2 mm Hg for reduced urinary sodium, improved fitness, and adherence to the DASH diet (except sodium at 18 months). With weight included, only fitness change additionally predicted SBP at 18 months.

Conclusions : Several lifestyle behavior changes are important for BP lowering, but are difficult to detect when weight is included in multivariate models.

Keywords: blood pressure; fitness; lifestyle; nutrition; physical activity

Document Type: Research Article


Publication date: September 1, 2007

More about this publication?
  • The American Journal of Health Behavior seeks to improve the quality of life through multidisciplinary health efforts in fostering a better understanding of the multidimensional nature of both individuals and social systems as they relate to health behaviors.

    The Journal aims to provide a comprehensive understanding of the impact of personal attributes, personality characteristics, behavior patterns, social structure, and processes on health maintenance, health restoration, and health improvement; to disseminate knowledge of holistic, multidisciplinary approaches to designing and implementing effective health programs; and to showcase health behavior analysis skills that have been proven to affect health improvement and recovery.

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