Work and Iron Status Evaluation

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00094042
Recruitment Status : Completed
First Posted : October 11, 2004
Last Update Posted : January 27, 2010
Information provided by:
National Institute on Aging (NIA)

Brief Summary:
This project seeks to understand how changes in the health of an individual affects the economic and social prosperity of the individual, family and community. The study involves providing iron supplements to a sample of participants in Central Java Indonesia and following those respondents for three years. They are compared with a control group who do not receive the supplement.

Condition or disease Intervention/treatment Phase
Aging Drug: Iron Supplement, 120mg Not Applicable

Detailed Description:

The goal of the study is to pin down the causal effect of improvements in health on the economic and social prosperity of individuals and their families. Particular attention will be paid to the dynamics underlying the effect of health on labor outcomes; older adults are more likely to experience transitions in health and economic status and so will be emphasized.

Beginning in 2002, about 4,000 households will be interviewed every four months for about 3 years. The first two waves of the survey will serve as baselines. After the second wave, households will be randomly assigned to one of two groups. Iron supplements will be provided to all members of households assigned to one of those groups. Household members in the 2nd group will receive an identical-looking placebo. Participants will take the supplements (or placebo) on a weekly basis for a year. The study will measure the effect of supplementation on the well-being of individuals and their families.

Data will be collected at the individual, household and community level. Individual level data will cover time allocation including work and participation in community activities, earnings, self-reported and physical health and cognition. All adult household members will be interviewed; questions about children will be answered by a caretaker. Data on wealth and consumption will be collected at the household level. Community resources, services and infrastructure information will be gathered along with detailed price data.

Study Type : Interventional  (Clinical Trial)
Enrollment : 16000 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: Work and Iron Status Evaluation (WISE)
Study Start Date : January 2002
Actual Primary Completion Date : July 2007
Actual Study Completion Date : July 2007

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Iron
U.S. FDA Resources

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Resident in village in study area in Purworejo District, Central Java, Indonesia

Exclusion Criteria:

Information from the National Library of Medicine

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 identifier (NCT number): NCT00094042

Purworejo District, Central Java, Indonesia
Sponsors and Collaborators
National Institute on Aging (NIA)
Principal Investigator: Duncan Thomas Department of Economics, UCLA

Additional Information: Identifier: NCT00094042     History of Changes
Other Study ID Numbers: AG0007
5R01AG020909-04 ( U.S. NIH Grant/Contract )
First Posted: October 11, 2004    Key Record Dates
Last Update Posted: January 27, 2010
Last Verified: August 2008

Keywords provided by National Institute on Aging (NIA):
Socioeconomic Factors
Dietary Supplementation

Additional relevant MeSH terms:
Trace Elements
Growth Substances
Physiological Effects of Drugs