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Table 6 Estimated per-participant cost by intervention modality in sensitivity analyses

From: Implementation and first-year operating costs of an academic medical center-based syringe services program

Uncertainty examined

Fixed site

Mobile site

Base case

$729.72

$2415.70

One-way sensitivity analysis

  

 Changing syringe distribution policy to needs-based

$891.94

$2658.49

 Routine opt-out testing from opening day

$775.97

$2481.30

Two-Way sensitivity analysis

  

 Changing syringe distribution policy to needs-based and implementing routine opt-out  HIV/HCV testing when SSP was implemented

$938.05

$2704.68

Societal cost sensitivity analysis

  

Base case

$144.84

–

One-way sensitivity analysis*

  

 Assigning minimum wage to participants who reported no income

$149.93

–

  1. 53 participant’s hourly wages were imputed with the minimum wage ($8.10)