Dietary Vitamin A Requirement in Chinese Children and the New Technology of Dietary Assessment
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ClinicalTrials.gov Identifier: NCT01559766 |
Recruitment Status :
Completed
First Posted : March 21, 2012
Last Update Posted : March 21, 2012
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Condition or disease |
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Vitamin A Deficiency |
Study Type : | Observational |
Actual Enrollment : | 403 participants |
Time Perspective: | Cross-Sectional |
Official Title: | Estimating Dietary Vitamin A Requirement in Chinese Children by Stable-isotope Dilution Technique |
Study Start Date : | July 2009 |
Actual Primary Completion Date : | July 2010 |
Actual Study Completion Date : | September 2010 |

Group/Cohort |
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4-6 years old group |
7-9 years old group |

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Ages Eligible for Study: | 4 Years to 9 Years (Child) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- well-nourished children with normal serum retinol(>=1.40umol/L)
Exclusion Criteria:
- ongoing or previous illnesses,
- having taken nutritional supplements within 3 months,
- positive results in the fat absorption test or parasite test,
- increased level of CRP (> 8 mg/L), or
- lower serum level of retinol (< 1.40 umol/L)

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01559766
China, Hubei | |
Shiyan Centre for Disease Control and Prevention | |
Shiyan, Hubei, China, 442500 |
Principal Investigator: | Xiufa Sun, BS | Tongji Medical College, Huazhong University of Science and Technology |
Responsible Party: | Xiufa Sun, Professor, Huazhong University of Science and Technology |
ClinicalTrials.gov Identifier: | NCT01559766 |
Other Study ID Numbers: |
No.2008BAI58B03 |
First Posted: | March 21, 2012 Key Record Dates |
Last Update Posted: | March 21, 2012 |
Last Verified: | March 2012 |
Vitamin A Dietary requirement Dietary records Deuterated retinol dilution technique |
Chinese children Dietary intake of vitamin A Vitamin A liver reserves |
Night Blindness Vitamin A Deficiency Avitaminosis Deficiency Diseases |
Malnutrition Nutrition Disorders Vision Disorders Eye Diseases |