Silver Book Fact
Risk of HAIs from hospitalization increases with age

Hospitalized elderly patients are 2 – 5 times more likely to develop a healthcare-associated infection than younger patients.
Haley R, Hooton T, Culver D, Stanley R, et al. Nosocomial Infections in U.S. Hospitals, 1975-1976. Am J Med. 1981; 70(4): 947-59. http://www.amjmed.com/article/0002-9343%2881%2990561-1/abstract