National Children's Study

Health information is the key to creating a better world for tomorrow’s children.  The National Children’s Study (NCS) is the largest, long-term study of its kind ever conducted in the United States. The goal of the NCS is to improve the health and well-being of children and contribute to understanding the role various environmental and genetic factors have on children’s health and development.  To do this, the NCS will follow 100,000 children from across the country from pre-conception through their first 21 years of life.  In California, several counties are participating in the nationwide study, which include Los Angeles, Orange, Sacramento and San Diego.

Your patients look to you as a trusted provider and source of information, so share your support of the NCS by answering questions about this landmark study.  Your patients who live in these counties may be eligible to join the Study if they are of childbearing age and are pregnant or planning to become pregnant in the next five years.  Your patients who participate in the NCS will contribute to the health of future generations of children, in your community and throughout the country. The study does not involve any medication or treatments or replace routine medical care.


The NCS began in response to the Children’s Health Act of 2000 and is led by the Eunice Kennedy Shriver National Institute of Child Health and Human Development of the National Institutes of Health (NIH) in collaboration with a consortium of federal government partners.  The study will take place in the home or one of the Study Centers and will collect data during the preconception, prenatal and childhood periods to give us information about environmental, behavioral and genetic factors that impact children’s health and development before and after they are born.


To learn more about the NCS you can visit


For County Specific Information and call center to determine eligibility:


Los Angeles:     








Sacramento      /Sacramento




San Diego       



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