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Table 2 Formulas to calculate the total cost per path in the decision tree

From: Costs of outpatient and inpatient MRSA screening and treatment strategies for patients at elective hospital admission - a decision tree analysis

Path

Description

Formula

A

Patient without risk factors (outpatient)

CA = Cris

B

Risk patient with negative MRSA findings (outpatient)

CB = Cris + Csc

C

Patients screened and decolonized on an outpatient basis, followed by inpatient admission

CC = Cris + Csc + Cdec _ out

D

Patient without risk factors (inpatient)

CD = Cris

E

Patient screened in hospital, preemptive isolation to findings, result: MRSA negative

CE = Cris + Csc + Cpre _ iso · Tpre _ iso

F

Patient screened in hospital, preemptive isolation, result: MRSA positive, then isolated and decolonized in hospital

CF = Cris + Csc + Cpre _ iso · Tpre _ iso + Cdec _ hos + Ciso _ hos · Tiso _ hos

  1. Legend: CA = Costs of path A in the decision tree, CB = Costs of path B in the decision tree, CC = Costs of path C in the decision tree, CD = Costs of path D in the decision tree, CE = Costs of path E in the decision tree, CF = Costs of path F in the decision tree