Get back in touch

‌Every year, we welcome back participants of all ages who have taken a break from the study. It’s easy to get involved again, and we will only ever ask you to do as much or as little as you feel comfortable with.

Text 07772 909090 with your full name and date of birth, drop us a line ( today, or read these answers to some of your most frequently asked questions to find out more.

I haven’t been involved in the study for many years. Why do you still need my data?
Children of the 90s is what’s known as a longitudinal study – research that follows the same group of people over time. So, while you share a common experience with everyone else in the study (being born in the Bristol area between April 1991 and December 1992), how your life has unfolded since you were born is unique to you. This makes you irreplaceable, and any data and information you share with us now is as valuable to researchers as it was at the start of our study. Put simply, it’s never too late to get involved again, however long you’ve been away!

How much time do I need to commit?
We understand how busy life can be, so how much time you commit is entirely up to you – you can choose to do as much or as little as you like. From completing questionnaires once a year to keeping a food/fitness diary for months at a time, just let us know how and when you’d like to take part, and we’ll make sure we only contact you with relevant information.

Will I be paid for my time?
You will be offered an incentive (for example, a shopping voucher) every time you complete a questionnaire or come to clinic, though it’s up to you whether you choose to receive these. We’ll also reimburse your travel costs.   

What’s coming up that I can get involved in?
As well as our annual questionnaires (which will be sent out later this year), we’re currently planning our next clinic, which is due to start in September 2020. We plan to offer shorter, more flexible appointments than we have in the past, and the clinic will run seven days a week, making it easier than ever to drop in and see us.

What other data do you collect?
As well as the information you give us via questionnaires and at clinic, we also collect data from your official records (for example, your NHS records, and information about any benefits you may receive). This is called data linkage. Data linkage gives us information that is otherwise difficult to obtain, and information that you may not even know yourself (for example, exact doses of medicine you have been prescribed). Read more about the ways in which we use and safeguard this data (and how to tell us if you do not want us to use these records).

Since I last took part, I’ve become a parent myself – can my children get involved too?
Absolutely! For the last six years, we have been following a growing number of Children of the Children of the 90s (COCO90s), making us the only project we know of to provide scientists with information on three generations. Whatever age your children are, we’d love them to get involved too.

I’m still not sure about taking part. Can I talk to someone about what’s involved?
Of course, we’d love to hear from you. Please text 07772 909090 with your full name and date of birth or drop us a line ( We look forward to hearing from you.

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