TABLE 4.

Probabilistic Sensitivity Analyses: Incremental Cost Per QALY Gained Screening MSM for Rectal Chlamydial and Gonococcal Infection When Varying Numerous Model Parameter Values Simultaneously

	Static Version of the Model	Dynamic Version of the Model
Cost per QALY (base case)	$16,300	<$0
Cost per QALY (5th percentile across the 3000 simulations)	<$0	<$0
Cost per QALY (95th percentile across the 3000 simulations)	$403,100	$120,100
Percent of simulations in which the cost per QALY was <$0	31	59
Percent of simulations in which the cost per QALY was <$25,000	48	76
Percent of simulations in which the cost per QALY was <$50,000	60	85
Percent of simulations in which the cost per QALY was <$100,000	75	94

Cost per QALY estimates are reported in 2011 US dollars and are rounded to the nearest $100.