Table 5 Values, notes, and sources for variables used to predict savings from overdose-related ambulance calls

Total annual injections in the SIF (I)

180,000

Based on Insite capacity and use

Milloy et al. [45]

Percent of injections resulting in overdose (o)

0.133%

Insite’s rate used as conservative estimate, since Baltimore has a higher overdose rate than Vancouver

Kerr et al. [99], Kerr et al. [16], Milloy et al. [45], Astemborski and Mehta [100]

Rate of overdose resulting in ambulance call (c _o)

46%

Pollini et al. [50]

Rate of SIF overdose ambulance call (c _i )

0.79%

For MSIC

KPMG [14]

Cost of overdose ambulance call (A)

$750

For Baltimore County

Baltimore County [101]