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Completed

NCT Number: NCT01559766

Dietary Vitamin A Requirement in Chinese Children and the New Technology of Dietary Assessment

Vitamin A deficiency remains a major public health problem in developing country worldwide. Young Children are considered to be at greatest risk of deficiency. However, there is little information on the vitamin A requirement of Chinese children. In the present study, about 400 children aged between 4 and 9 years old in a kindergarten and an elementary school of Shiyan City were screened before admission by questionnaire and anthropometric measurement. The vitamin A status of children was assessed by serum vitamin A level, relative dosage reaction and stable-isotope dilution technique. At the same time, their dietary vitamin A intakes were estimated by weighted-food dietary survey. The dietary vitamin A requirement in young children was determined on the basis of dietary vitamin A intakes in Children with adequate vitamin A level.

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Key information

Conditions

Vitamin A Deficiency Avitaminosis Deficiency Diseases Malnutrition Nutrition Disorders Nutritional and Metabolic Diseases

Age range

4 year–9 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Shiyan Centre for Disease Control and Prevention

Shiyan, Hubei, 442500, China

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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)

Sponsors and collaborators

Lead sponsor

Huazhong University of Science and Technology

Other

Collaborators

  • ShiYan Centre for Disease Control and Prevention
  • Tufts Medical Center

Registry information

Official study title

Estimating Dietary Vitamin A Requirement in Chinese Children by Stable-isotope Dilution Technique

Important dates

Study start
2009
Primary completion
2010
Study completion
2010
First posted
Mar 21, 2012
Registry last updated
Mar 21, 2012

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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