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Sponsored by: |
National Heart, Lung, and Blood Institute (NHLBI) |
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Information provided by: | National Heart, Lung, and Blood Institute (NHLBI) |
ClinicalTrials.gov Identifier: | NCT00005745 |
To quantify the association between multiple intentional weight losses (i.e., weight fluctuations) and the development of hypertension and diabetes mellitus among 50,790 female nurses participating in the ongoing Nurses' Health Study II. In addition to assessing the consequences of weight fluctuations, their correlates and course were identified.
Condition |
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Cardiovascular Diseases Diabetes Mellitus Heart Diseases Hypertension |
Study Type: | Observational |
Study Design: | Natural History |
Study Start Date: | January 1998 |
Estimated Study Completion Date: | December 2002 |
BACKGROUND:
In the United States, approximately one third of adult women are trying to lose weight. Most weight losses are not sustained and in fact may be followed by gains of at least as much weight as was intentionally lost. It is unclear whether there are adverse outcomes associated with multiple intentional weight losses.
DESIGN NARRATIVE:
The prospective study addressed the impact of weight fluctuation on development of hypertension (HPT) and diabetes (DM) by following women who significantly fluctuated in weight compared to those who generally maintained a stable weight. The subject source was all participants between 1989 and 1993 in the Nurses Health Study II (NHS) who did not experience a full term pregnancy between 1989 and 1993 and who were free of HPT, DM and cancer in 1993. A random sample of each of two weight fluctuation classifications, >20 lbs. (3 or more times) and 10-19 lbs. (3 or more times) was identified.
A control group of non-fluctuators was matched by age and body mass index strata. Baseline data consisted of information obtained from the 1993 NHS II follow-up along with supplemental questionnaires sent to study participants to elicit specific information on past and present weight gain/loss and intentionality of weight fluctuation. Prospective data came from follow-up questionnaires in 1995, 1997, and 1999. Hypertension and DM ascertainment were obtained from self-report in the questionnaire. This ascertainment method appeared quite adequate based on validity studies carried out on subsamples of this cohort.
Genders Eligible for Study: | Female |
Accepts Healthy Volunteers: | No |
No eligibility criteria
Study ID Numbers: | 5006 |
Study First Received: | May 25, 2000 |
Last Updated: | June 23, 2005 |
ClinicalTrials.gov Identifier: | NCT00005745 History of Changes |
Health Authority: | United States: Federal Government |
Body Weight Metabolic Diseases Heart Diseases Vascular Diseases Diabetes Mellitus |
Endocrine System Diseases Endocrinopathy Glucose Metabolism Disorders Metabolic Disorder Hypertension |
Metabolic Diseases Heart Diseases Vascular Diseases Diabetes Mellitus |
Endocrine System Diseases Cardiovascular Diseases Glucose Metabolism Disorders Hypertension |