Table 1 Models output for assessing the variation in antibiotic consumption in the Haemato-Oncology unit (HO ward and HSCT, combined) expressed as relative risk (RR) with 95%CI.

From: Impact of a two step antimicrobial stewardship program in a paediatric haematology and oncology unit

 

First intervention (FN institution guidelines publication and dissemination)

Second intervention (structured ASP)

 

Immediate impact

Variation by months (slope variation)

Immediate impact

Variation by months (slope variation)

 

%

RR (95% CI)

p-value

%

RR (95% CI)

p-value

%

RR (95% CI)

p-value

%

RR (95% CI)

p-value

Total antibiotics

−6.80

0.93 (0.87–1)

0.063

−1.0

0.99 (0.98–1)

0.006

−1.1

0.99 (0.94–1.04)

0.678

0.2

1 (1–1.01)

0.515

Meropenem

−25.5

0.74 (0.58–0.95)

0.019

8.1

1.08 (1.06–1.1)

0.000

−43.0

0.57 (0.49–0.66)

0.000

−3.4

0.97 (0.95–0.98)

0.000

Piperacillin-tazobactam

185.5

2.86 (2.19–3.72)

0.000

−10.2

0.9 (0.87–0.93)

0.000

15.0

1.15 (1.02–1.3)

0.028

1.2

1.01 (1–1.03)

0.126

Third-generation cephalosporins

−66.5

0.33 (0.25–0.45)

0.000

6.4

0.94 (0.91–0.96)

0.000

37.5

1.37 (1.07–1.77)

0.013

0.7

1.01 (0.98–1.04)

0.622

Quinolones

−13.3

0.87 (0.59–1.27)

0.461

26.7

1.27 (1.21–1.33)

0.000

16.6

1.17 (0.9–1.52)

0.249

−13.1

0.87 (0.83–0.9)

0.000

Amikacin

21.9

1.22 (0.98–1.52)

0.080

−1.0

0.99 (0.97–1.01)

0.390

13.7

1.14 (0.99–1.31)

0.075

−2.4

0.98 (0.96–0.99)

0.005

Vancomycin-Teicoplanin

−13.3

0.87 (0.73–1.04)

0.116

1.6

1.02 (1–1.03)

0.057

−8.1

0.92 (0.82–1.03)

0.140

−2.2

0.98 (0.97–0.99)

0.002