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Southern Illinois University Carbondale

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Tracking Rare Incidence Syndromes

Mission Statement

The Tracking Rare Incidence Syndromes (TRIS) project seeks to increase awareness and knowledge for families and professionals touched by rare trisomy conditions and aims to facilitate improved decision making for optimal services and supports for children and their families.











Ellie, six years, Trisomy 18 mosaic


Phillip, 2 years, Trisomy 9 mosaic

Please use the Pre-Enrollment request form to sign up to complete the TRIS Survey. If you have already started your survey, please click here to return to it.

You can email us at tris@siu.edu if you have questions. We look forward to hearing from you.

Thank you,
TRIS project Staff


September, 2009: Trisomy 18 and Trisomy 9 Survival Data

As of September 15, 2009, 153 Full TRIS Surveys were completed (children living longer than two months). Of the total, 50 children had a trisomy 18 variant (32.7%) including 34 full, nine mosaic, five partial, one tetrasomy and one isochromosome 18p. At the time of survey completion, 37 children were living (74%) (mean = 106 months, range two to 394 months). The remaining 13 survived between two to 258 months (mean = 64 months) (32%).

Of the 124 completed Modified TRIS Surveys, 23% represented infants with trisomy 13 (n =28; all full). Eighteen (64.3%) were stillborn or passed away on the day of birth. The majority of the remaining infants survived for approximately 30 days or less (n = 8, range = 1 to 33).

Data representing 26 children or adults with a form of trisomy 9 is available on the TRIS Survey (n=153, 17%). This group represented nine individuals with trisomy 9 mosaic, 11 partial, and six with trisomy 9p only. In addition, five individuals with partial trisomy 9 also had an affected p arm. All are living with a range two to 468 months of age (mean=90 months). Only one infant with trisomy 9 mosaic is represented in the Modified Survey (n=124). The child passed away on the day of his birth in 1996.


August, 2009: Trisomy 13 survival data

As of August 1, 2009, 145 Full TRIS Surveys were completed (children living longer than two months). Of the total, 44 children had a type of trisomy 13 (30.3%) including 25 full, nine mosaic and 10 partial. At the time of survey completion, 30 children were living (68%) (mean = 100 months, range two to 405 months). The remaining 14 survived between two to 290 months (mean = 64 months) (32%).

The Modified TRIS Survey collects data on infants who survived less than 60 days. Of the 122 completed surveys, 74% represented infants with trisomy 13 (n = 90; 89 full, one mosaic). Close to half (43%) were stillborn or passed away during labor and delivery. The next largest group (n = 10) survived for three days post-birth.  


TRIS Survey data is in the process of being analyzed in the following areas:

  • Support from immediate and extended family members
  • Surgical interventions
  • Physical and medical conditions related to trisomy 9 variants
  • Birth Plans

The TRIS project staff has several upcoming presentations on these topics and will begin writing the results for publication. Stay tuned!


The Tracking Rare Incidence Syndromes (TRIS) project seeks to increase the knowledge base on rare incidence trisomy conditions, and to make this information available to families and interested educational, medical and therapeutic professionals. Related outcomes will be the development of appropriate services, advance treatment options, and supports during the prenatal, newborn and subsequent developmental periods.  Children affected by T18, T13, and other rare syndromes possess unique needs requiring education of those involved in their daily, educational and medical care.

A critical part of the TRIS project is dissemination of The TRIS Survey. The survey will be used to collect and analyze data focusing on common medical conditions, developmental milestones, therapeutic needs, family-related concerns, and demographic data of families with a child (living as well as deceased) with a rare trisomy condition.

Sponsors:

External Resources

Living with Trisomy: TRISOMY SUPPORT,
Families Supporting Families

You, too, can make an online, tax-deductible donation to TRIS.