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Table 4 Optimal choice of catheter under uncertainty, given different data scenarios

From: Cost effectiveness of antimicrobial catheters in the intensive care unit: addressing uncertainty in the decision

Scenario Optimal catheter choice Incremental outcomes with no uncertainty Average incremental monetary net benefits given uncertaintyb
  Catheter type Probability of error Costsa QALYsa Mean 95% Confidence interval
Baseline MR 0.62 - $130,289 1.64 948 -106 to 3,792
Low bed day ($335 ICU/$101 ward) MR 0.76 + $28,257 1.64 191 -348 to 1,317
High mortality (15%) MR 0.46 - $106,223 26.65 2,441 116 to 8,516
No utility weights used MR 0.62 - $130,289 2.33 1,042 -166 to 3,961
Increased length of stay (6.5 days ICU/6 days ward) MR 0.56 - $282,038 1.64 1,239 -57 to 4,795
Low infection rate (0.8%) MR 0.75 - $1,972 0.53 325 -71 to 1,283
High infection rate (5.0%) MR 0.56 - $314,400 3.23 1,725 -139 to 6,455
  1. aRelative to uncoated catheters and per 1,000 catheters; bMonetary net benefits reported per catheter relative to uncoated catheters assuming a willingness-to-pay for a QALY of AUD $40,000.
  2. ICU, intensive care unit; QALY, quality-adjusted life year.