Fig. 2From: Cost-effectiveness of ceftolozane/tazobactam plus metronidazole versus piperacillin/tazobactam as initial empiric therapy for the treatment of complicated intra-abdominal infections based on pathogen distributions drawn from national surveillance data in the United StatesCeftolozane/tazobactam vs. piperacillin/tazobactam: influence of variables on ICER (cost per discounted QALY). ICERÂ =Â Incremental cost-effectiveness ratio; QALYÂ =Â Quality Adjusted Life YearBack to article page