Table 5.

Costs of the intervention

Expense item	Cost (Mean)
Incentive Vouchers	$103.07
Rapid Urine Test Cups	$60.90
($5.25/cup × 11.6a)
Breathalyzer Mouthpieces	$2.78
($0.24 × 11.6)
Staff Costs	LPNb = $102.72
(16 appointments × 15 minutes each)	BAc = $125.60
	LCSWd = $152.00
Total Cost per Patient	$266.93 - $316.21

^a11.6 = mean number of intervention appointments attended.

^bLicensed Practical Nurse: $41,101 base + 30% fringe.

^cBachelor’s level research assistant: $50,275 base + 30% fringe.

^dLicensed Clinical Social Worker: $60,827 base + 30% fringe.