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The Combined Health Information Database (CHID) is a searchable bibliographic database sponsored by several health agencies of the Federal Government, including agencies within the National Institutes of Health, Centers for Disease Control and Prevention, and Health Resources and Services Administration. CHID was created in 1985 as a single source for Federal health information. CHID contains information in 18 individually searchable categories including deafness and communication disorders, arthritis, diabetes, and oral health. CHID producers decided that the information in CHID was so valuable that it should be made available to as broad an audience as possible.

In 1997, CHID was converted to the Internet. CHID currently contains abstracts of more than 110,000 health materials, many of which are not listed in any other database or print resource. CHID Online was featured as Yahoo!'s Site of the Day, and has been chosen by the search engine Lycos as a "top 10% of the web" site.

Who Uses CHID?

CHID is used as a reference tool by health professionals, health educators, librarians, patients and their families, and the general public. Tens of thousands of people use CHID each month to find leads to journal articles, educational software, books, patient education pamphlets, Spanish-language resources, and other materials. Health professionals use CHID to find reliable sources of patient education materials, learn about successful health promotion programs, and review health and medical literature. Patients and the public use it to find leads to reliable, current, and helpful health information. Medical librarians, information professionals, writers, and members of the media use CHID to find reference materials and information about specific disorders.

The Deafness and Communication Disorders Database

The Deafness and Communication Disorders database, sponsored by NIDCD, is one of CHID's 18 databases. The Deafness and Communication Disorders database serves as a national resource that includes descriptions and abstracts of more than 4,450 fact sheets, videocassettes, books, educational materials, articles, and other materials dealing with both normal and disordered communication processes. The database covers topics in seven focus areas:

  • Hearing
  • Balance
  • Smell
  • Taste
  • Voice
  • Speech
  • Language

Recent additions to the Deafness and Communication Disorders database lead users to:


  • A book on the behavioral evaluation of hearing in infants and young children.


  • A comic book that helps children understand the role of speech language pathologists and the importance of good communication.


  • Videotapes on spasmodic dysphonia and stimulating communication in people with Alzheimer's disease.


  • Practical tips on adjusting to the use of a hearing aid.


  • Information for school administrators about improving the quality of education for children who are deaf or hard of hearing.


  • A manual that describes how to achieve an effective workplace hearing conservation program.


  • An article that reviews the literature on drug-induced disturbances of smell and taste.

The NIDCD Information Clearinghouse uses the Deafness and Communication Disorders database as a first-line reference guide for answering inquiries to the clearinghouse, as a research tool, and as a means of keeping informed about activities and materials developed by other organizations. NIDCD invites you to take advantage of this valuable resource by visiting the CHID site and conducting a database search on the topics that most interest you.

NIDCD also encourages organizations and publishers to submit materials to be considered for inclusion in the database. The clearinghouse's most enthusiastic sources of information are its users. If you produce or know of a useful booklet, video, or other resource, send us a copy for CHID! Please contact the clearinghouse at 800-241-1044 or for shipping instructions.

Last Updated Date: 
June 7, 2010