Type of ADE: Total ADEs
Voluntary reporting, 1988-89: 9
Computer surveillance, 1989-90: 401
Computer surveillance, 1990-91: 598
Computer surveillance, 1991-92: 529
Type of ADE: Known drug allergies
Voluntary reporting, 1988-89: —
Computer surveillance, 1989-90: 13
Computer surveillance, 1990-91: 0
Computer surveillance, 1991-92: 0
Type of ADE: Inappropriate administration
Voluntary reporting, 1988-89: —
Computer surveillance, 1989-90: 20
Computer surveillance, 1990-91: 1
Computer surveillance, 1991-92: 2
Sources: (1) Evans RS, Pestotnik SL, Classen DC, et al. Prevention of adverse drug events through computerized surveillance. Proc Annu Symp Comput Appl Med Care 1992;437-41. (2) Evans RS, Pestotnik SL, Classen DC, et al. Preventing adverse drug events in hospitalized patients. Ann Pharmacother 1994;28:523-7.