Participation in The Infant Development and the Environment Study (TIDES) began when pregnant mothers were in their first trimester of pregnancy and ended shortly after birth for girl babies and at 1-year old for boy babies. During the first 5 years of TIDES, we enrolled almost 800 moms and their babies across four research study sites.
Our study suggests that prenatal exposure to common chemicals in our diet and homes – phthalates, which make plastics soft and flexible – may affect reproductive tract development during pregnancy of boys, but not that of girls, and these results are affected by the amount of stress the moms reported during pregnancy.
Why is this Study Important?
Because of the success of the initial TIDES and the importance of these and other findings related to phthalate exposures, the National Institutes of Health has funded the continuation of TIDES, which we are calling TIDES II. This phase will allow us to follow you and your TIDES child.
TIDES II is important because we have the opportunity to extend our knowledge beyond pregnancy and learn about the potential effects of prenatal and postnatal phthalates on the development of young children. We want to answer questions about how the environment and events occurring now and during pregnancy affect a child’s growth, well-being and behavior as he or she grows between today and 6 years old.
We hope that you will continue to be part of this important and innovative study!
What Does Participation in TIDES II Involve?
Participation in TIDES II will consist of:
- an online questionnaire to be completed prior to the clinic visit
- a few additional surveys at the first clinic visit
- the following measurements on your TIDES child: Height, weight, skinfolds, blood pressure, finger length and collection of a urine specimen
- two clinic visits for each participating family over the course of 3 years.
- the second study clinic visit will repeat the same measures on the TIDES child, and include an assessment of play behavior of the TIDES child
- complete the questionnaires again.
Participant families (mother and child) will receive $75 in gift cards for the first visit and $125 in gift cards for the second visit, totaling $200 in gift cards for the completion of all study requirements.
If you agreed to be contacted for further participation when TIDES I was ending, Stacey Moe, the TIDES II study coordinator, will contact you via email and/or phone to determine your interest in participating in TIDES II. Should you agree to participate, we will schedule you and your child for your first clinic visit. We very much look forward to being in contact with you again!
Study Clinic Visits Location
All mother and child clinic visits for TIDES II will take place at the Epidemiology Clinical Research Center (ECRC). The ECRC is a short distance from campus, easy to get to, and parking is free. – Directions to ECRC
Upon arrival at the ECRC, please come through the main doors and take the stairs (or elevator) to the second floor. A receptionist will be in the front office to welcome you.
**TIDES Update** (April 2017)
We have successfully completed the 4 year old visits for TIDES families! We thank you all for your continued interest in this important study, which continues to focus on the potential impact of the environment on our children. We are so happy to have had more than 85% of the original TIDES families participate in our 4 year old study visit!
The success of TIDES is because of your willingness to continue participation. We have enjoyed seeing you and watching your children grow! We are already planning the 6 year old visits, which will begin this summer, 2017 and are looking forward to seeing you again. If you are still interested in being part of TIDES but were unable to do so for the 4 year old visit, you still have an opportunity to contribute.
Thank you all for your support and participation in TIDES!
This study is funded by the NIH/NIEHS, 5R01ES025169.