How to submit a proposal

For information about the variables available for analysis please email

If you would like to submit a proposal, please complete our proposal form and email it to us at We will confirm receipt of your proposal and advise if additional information is needed before it is circulated to the study Steering Committee for review. A decision on whether a proposal has been approved is normally made within one month if its submission.

Please note that since the study closed in 2020, requests for data will be processed more slowly and limited data management/statistical support will be available.