In healthcare, the<unk>  is the finding of a difference in mortality rate for patients admitted to hospital for treatment at the<unk>  compared to those admitted on a weekday. The effects of the<unk>  on patient outcomes has been a concern since the late 1970s, and a<unk> ’ is now well documented. Although this is a controversial area, the balance of opinion is that the<unk>  (and bank holidays) have a deleterious effect on patient care (and specifically increase mortality)—based on the larger studies that have been carried out. Variations in the outcomes for patients treated for many acute and chronic conditions have been studied.
Weekend effect
Widowhood effect
Dose–response relationship
Whitten effect
Anrep effect
July effect
Ceiling effect 
Positive-incentive value