More than 100,000 A&E patients in England waited for hours to be treated in hospitals in January, the highest number since records began, NHS figures show.

There were 100,578 patients waiting for more than four hours, of whom 2,846 were delayed for more than 12 hours from decision to admit to admission, according to performance statistics released by NHS England.

For both delays, this is the highest number of “trolley waits” since records began.

It is an increase of 20.4% and 353.9% respectively from the same month a year ago, when there were 83,554 four-hour waits and just 627 12-hour waits.

The British Medical Association said the figures showed the strain on the NHS was “relentless, deepening and showing no sign of recovery”.

The BMA council chairman, Dr Chaand Nagpaul, said: “With nearly 200,000 people waiting over four hours on a trolley so far this winter – 56,000 more than the same time last year – and almost six times more people waiting over 12 hours on trolleys this winter compared to last, the government is simply failing to get a grip on winter pressures.

“Stories of patient deaths on corridors, rammed emergency departments and cancellations of patients’ procedures as a daily occurrence are becoming the new norm as doctors across the country say they are exhausted and run into the ground.

“This is an unacceptable situation for a civilised health service; it is failing patients and is not sustainable.”

The NHS figures also show that ambulances attended 750,238 incidents in January, making it the busiest January on record.

An NHS spokeswoman said there had been an improved A&E performance and faster ambulance response times in January compared with December.

“This was aided by the sustained hard work of NHS staff, and the ability to open, and staff, more hospital beds than last year.

“This means that the NHS is well prepared to deal with the potential impact of coronavirus, although it remains important that anyone with health concerns should contact NHS 111.”

Dr Nick Scriven, of the Society for Acute Medicine, said: “The fact the NHS is teetering on the brink is now such common knowledge that it is no longer a shock to see continuous failure to meet performance targets and, even today, with the figures showing the worst ever performance against emergency targets since data collection began, it will barely raise an eyebrow.”

He added: “This performance data, however, is not any reflection on the mammoth efforts of frontline staff to deliver in almost impossible circumstances; something reinforced by those who battled last weekend’s wild weather for their patients.”

The shadow health secretary, Jonathan Ashworth, said: “Years of Tory underfunding, bed cuts and mismanagement have pushed the NHS to the brink.

“Without funded plans for social care, public health and a credible strategy to recruit the staff needed, patients will continue to languish on trolleys or wait longer in pain and distress for treatment.”