Not OP, but scientific conclusions need to be verifiable, especially if they are driving policy. IMO you'd need a very good reason to keep any data related to s

Not OP, but scientific conclusions need to be verifiable, especially if they are driving policy. IMO you'd need a very good reason to keep any data related to such studies secret, and thats only if the data being kept secret isn't meaningful to the reproduction and verification of the results. Knowing who is X data point is most certainly relevant to independently verifying whether or not the data of the study is accurate, so i have a very hard time seeing how that should be kept secret.