Dr Mark Holland, president of the Society for Acute Medicine, said: “The general election and purdah appear to be putting a number of important NHS decisions on hold.
“I would argue that it is only right and just that important data pertaining to the NHS in England is published. “
Shadow health secretary Jon Ashworth said: “It’s a cover-up to deny the public the true picture of the NHS.
“We demand full transparency so everyone knows the real state of the NHS when casting their vote.”
The Department of Health said it was a matter for NHS Improvement.
The Conservative Party offered no comment.
NHS England caused some raised eyebrows at the start of the campaign by announcing that the monthly performance figures, including A&E waiting times, due on 8 June would not go out then because it was polling day.
A spokesman said the figures would be published on 9 June on the advice of the national statistician.
Meanwhile, leading scientists, in a letter co-ordinated by the Science Media Centre, have written to the head of the civil service, Sir Jeremy Heywood, calling for clarification of the purdah rules.
The signatories said that the public “are being denied access to the best experts” because university researchers felt unable to provide comment to journalists.
Liberal Democrat health spokesman Norman Lamb said:
“It would be wrong to try and hide this vital information until after the election.
“The public deserves to know the scale of the financial crisis facing the NHS before they vote.”