Recent data from the Health and Social Care Information Centre revealed that staff are taking less time off for illness than they were five years ago, despite a rise in pressure.
Across the NHS in England, sickness absence has fallen slightly from a high of 4.24% in 2009-10 to 4.06 in 2013-14.
NHS Employers, which represents trusts, estimates this has saved the health service the equivalent of £7m, or 273 full-time equivalent staff.
Among NHS staff groups, doctors had the smallest amount of time off sick at 1.22%, with senior managers recording an absence rate of 1.55%.
Qualified nurses, midwives and health visiting staff had an overall absence of 4.5%, with ambulance staff recording the highest sickness at 6.2%.
Overall the HSCIC said NHS staff were taking one less day off sick than they were five years ago.
Why have sickness rates fallen?