Table 2. Difference between voluntary and computerized identification of adverse drug events (ADEs) and type of ADE identified at LDS Hospital

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.

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