Table 3 Values, notes, and sources for variables used to predict skin and soft-tissue infection reduction savings

Number of SIF clients (N)

2100

Approximate monthly unique Insite injection room clients

Maynard [33]

Hospitalization rate for skin and soft-tissue infection (h)

4.43%

Includes abscesses, cellulitis, sepsis, endocarditis, septic arthritis, osteomyelitis

Hsieh [91]; Lloyd-Smith et al. [18]; Kerr et al. [92]

Reduction in soft-tissue and skin infection for PWID that visit SIF (r)

67.00%

From Insite

Lloyd-Smith et al. [18]

Average length of skin infection-related hospital stay for PWID (L)

6 days

From Baltimore (Hsieh, 2015)

Hsieh [91]; Lloyd-Smith et al. [18]; Stein [93]; Palepu et al. [94]

Average hospital cost per day (C)

$2500

Average cost per inpatient day, not specifically for PWID

Rosenthal [95]; Harris [96]