Table 3.

Results from 1-way Sensitivity Analysis of Selected Variables

Variable	Range of Variable Estimates	Cost per QALY Gained, $
Annual probability of cardiac arrest per site	0.01 to 1.0	590,000 to 6,000
Probability of surviving to hospital discharge with automated external defibrillator (AED)	0.20 to 0.50	44,000 to 11,000
Probability of surviving to hospital discharge with emergency medical services (EMS)	0.02 to 0.20	19,000 to 89,000
Probability of AED use on arrest victim	0.60 to 1.0	49,000 to 30,000
Cost of hospitalization for arrest survivors, $	30,000 to 200,000	25,000 to 69,000
Future medical costs for arrest survivors, $	25,000 to 115,000	25,000 to 48,000
AED purchase costs, $	250 to 3,000	28,000 to 30,000
AED maintenance and training, $	100 to 900	28,000 to 35,000
Cost of hospitalization for deaths in hospital, $	2,800 to 31,000	29,000 to 34,000
Life expectancy for arrest survivors, y	3 to 7	61,000 to 18,000
Quality of life for unimpaired survivors	0.7 to 1	35,000 to 25,000
Probability of surviving unimpaired	0.80 to 0.95	32,000 to 28,000

QALY, quality-adjusted life year.