In a statement, the United Lincolnshire Hospitals Trust, which runs the Pilgrim Hospital in Boston, says it has carried out a review on nurse staffing levels.
"We are committed to providing high quality care for our patients and over the last year we have successfully recruited to a large number of clinical posts for both nursing and medical staff.
"We have also carried out a review of the nursing establishment on all wards across all hospital sites in the Trust and are in the process of introducing a new staffing template to be used on every ward.
"We understand the data used is more than a year old and many changes, such as those described have taken place since then."
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Despite receiving treatment at the scene, the man was pronounced dead shortly after.
Cloud will largely clear this evening, although with variable cover and few light showers over the Derbyshire hills.
The rain will clear during the evening so the rest of the night will be dry and mild with long clear periods.