Table 3 CAUTI trial: outcomes, costs, incremental cost effectiveness. Pre intervention, post four months & nine months post intervention

1. Overnight Hospitalisations (n)

a

1,630

1,677

1,551

 Observed Catheterisations (n)

b

195

166

158

 Catheterisations rates (%)

c

b/a

12.0%

9.9%

10.2%

 CAUTIs (n)

d

1

0

0

 CAUTI rates (% of catheterised)

e

d/b

0.51%

0.00%

0.00%

 Urine tests (n)

f

85

57

81

 Urine tests (% of catheterised)

g

f/b

43.6%

34.3%

51.3%

 Antibiotic Administrations (n)

h

15

10

14

 Antibiotic Administrations (% of catheterised)

i

h/b

7.7%

6.0%

8.9%

 Intervention

j

$0

$17,045

$15,765

 Offsets

  Catheterisations

k

$6,941

$5,909

$5,624

  CAUTI Related (Urine Tests and Antibiotics)

l

$3,287

$2,203

$3,126

  Extra LOS due to CAUTI

m

$7,884

$0

$0

 Total Offsets

n

$18,112

$8,112

$8,751

Total Aggregate Costs

o

j+n

$18,112

$25,158

$24,516

 Intervention

p

j/a

$0.00

$10.16

$10.16

 Offsets

  Catheterisations

q

k/a

$4.26

$3.52

$3.63

  CAUTI Related (Urine Tests and Antibiotics)

r

l/a

$2.02

$1.31

$2.02

  Extra LOS due to CAUTI

s

m/a

$4.84

$0.00

$0.00

  Total Offsets

t

$11.11

$4.84

$5.64

Total Average Costs (per hospitalisation)

u

p+t

$11.11

$15.00

$15.81

 Incremental Costs

  Intervention

v

increment p

$10.16

$10.16

  Catheterisations

w

increment q

-$0.73

-$0.63

  CAUTI Related (Urine Tests and Antibiotics)

x

increment r

-$0.70

$0.00

  Extra LOS due to CAUTI

y

increment s

-$4.84

-$4.84

  Total Incremental Costs

z

$3.89

$4.69

7. Decreases in Catheterisation rates

aa

increment c

2.1%

1.8%

8. Incremental Cost Effectiveness Ratio (ICER)

ab

z/aa

$188

$264