This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Genetics of Periodontal Diseases in Chinese

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified August 2012 by Shanghai Stomatological Disease Center.
Recruitment status was:  Active, not recruiting
Interleukin Genetics, Inc.
Information provided by:
Shanghai Stomatological Disease Center Identifier:
First received: August 30, 2012
Last updated: NA
Last verified: August 2012
History: No changes posted
(A retrospective case control study to validate the association between Interleukin-1 gene variations and adult chronic periodontal disease in Chinese (Shanghai))


Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Retrospective

Resource links provided by NLM:

Further study details as provided by Shanghai Stomatological Disease Center:

Study Start Date: July 2011
Chronic Periodontitis


Ages Eligible for Study:   35 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Sampling Method:   Non-Probability Sample
Study Population

All study subjects will be selected from a pre-existing patient database in Shanghai. All chronic periodontitis cases and controls will be subjects who were at least 35 years old at time of enrollment.

Classification of chronic periodontitis will be based on the extent of periodontal tissue destruction with consideration of tooth loss.


Inclusion Criteria:

- To be included in this study, an individual needs to be Han Chinese of 35 years of age or older at time of enrollment.

Exclusion Criteria:

- 1) Age younger than 35 years old. 2) Patients with diagnosis of rheumatoid arthritis, psoriasis, inflammatory bowel disease, glomerulonephritis/kidney disease, cancer, or Sjogren's syndrome.

3) Organ transplant recipients.

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

No Contacts or Locations Provided
  More Information Identifier: NCT01676545     History of Changes
Other Study ID Numbers: ILI-10-122-PST2China
Study First Received: August 30, 2012
Last Updated: August 30, 2012

Additional relevant MeSH terms:
Periodontal Diseases
Mouth Diseases
Stomatognathic Diseases processed this record on September 21, 2017