A new survey suggests the groups that fund research often seek control of results. 

One in five researchers report being pressured by funders to delay, change, or not publish the findings of health behaviour studies, according to a new global study by Australian researchers. 

In the survey of 105 published authors on health topics like smoking, sexual health, and nutrition, some researchers said funders were reluctant about publishing “unfavourable” results, or asked the scientists to alter their method or conclusion to better align with the funder's interests. 

The authors of the study suggest their findings may even under-estimate the problem, as they only looked at published papers - meaning they would have missed scientists who had their work suppressed entirely.

The full report is accessible here.