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NCT00512733 · ClinicalTrials.gov registry record
Validation of Dietary Calcium Questionnaires Using Diet Records
A clinical trial of Healthy, sponsored by University of California, San Francisco.
- Completed
- Registry status
- 160
- Enrollment target
- 1
- Study location
NCT00512733: Completed study of Healthy, sponsored by University of California, San Francisco.
NCT00512733 is a study of Healthy that has completed, run by University of California, San Francisco. The registered enrollment target is 160 participants, below the 647-participant average among 1,090 other Healthy trials with a reported enrollment target (75% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00512733, a study of Healthy, has completed, sponsored by University of California, San Francisco.
- COMPLETED
- Registry status
- 160 participants
- Enrollment target
- 1
- Study location
Study Summary
Dairy products continue to be an important source of calcium, providing over half the calcium intake for most individuals. Educational interventions promoting adequate calcium intake with tools estimating dietary calcium that can be easily utilized by consumers would be a valuable asset to promoting skeletal health. Validation of these tools against standard dietary assessment methods enhances their utility. The Dairy Council of California has developed two dietary calcium questionnaires, one electronic and one in print, using known dietary sources of calcium including frequency of consumption and portion size. For these questionnaires to be effective in clinical and research settings they must be a valid measurement of dietary calcium intake. To measure the validity of the dietary calcium questionnaires one hundred seventy three women will complete the two dietary calcium questionnaires and one 3-day food record. The dietary calcium questionnaires will be validated against this established method of dietary intake measurement. The objective of this study is to validate two dietary calcium questionnaires that can be used in clinical and research settings against an established method of dietary intake measurement. It is hypothesized that both dietary calcium questionnaires will be a valid measurement of dietary calcium intake in women.
Primary Outcome
Participants' 3-day food records were mailed to the study and examined for completeness and legibility. Missing or unclear items were corrected by telephoning the participant. Food records were entered into Food Processor Plus software (ESHA Research, Salem, OR) to determine nutrient content. For food items that were not in the software's database, nutrient content was determined by examination of labels, contact with food manufacturers, search of the US Department of Agriculture nutrient databa
Conditions Studied
Study Locations (1)
California
- University of California San Francisco - San Francisco
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 160 participants |
| Start Date | 2006-03 |
| Est. Completion | 2008-03 |
What the finished NCT00512733 record still lists
NCT00512733 is an observational study that tracks outcomes without assigning an intervention. The registered 160 participants enrollment target is mid-sized for trials with a published cap, below the 647-participant average among 1,090 other Healthy trials with a reported enrollment target (75% lower).
The record links to 1 condition, with Healthy appearing as the primary indexed condition, and to 0 interventions.
NCT00512733 reports a single indexed study location in California.
Frequently Asked Questions
What is clinical trial NCT00512733 about?
NCT00512733 is a clinical study titled "Validation of Dietary Calcium Questionnaires Using Diet Records". Dairy products continue to be an important source of calcium, providing over half the calcium intake for most individuals. Educational interventions promoting adequate calcium intake with tools estimating dietary calcium that can be easily utilized by consumers would be a valuable asset to promoting...
What is the current status of trial NCT00512733?
This trial is currently completed. The enrollment target is 160 participants. The study started on 2006-03. Estimated completion is 2008-03.
What conditions does trial NCT00512733 study?
This clinical trial studies the following conditions: Healthy.
Who is sponsoring clinical trial NCT00512733?
This trial is sponsored by University of California, San Francisco, which has 1,713 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT00512733 being conducted?
This trial has 1 study location across California. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
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Where NCT00512733's enrollment target sits among peer trials
160 145th of 1090 higher than 944 of 1,090 other Healthy trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Healthy trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
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