Table 2 Patient days, DOT–LOT per 100 patient days and DOT/LOT ratio calculated for antibiotics provided for therapeutic purposes by sex, age classes, hospital ward, lenght of hospital stay, comorbidities and participating center.

From: Use of multiple metrics to assess antibiotic use in Italian children’s hospitals

 

Number of patient days

DOT/100 patient days

P valueDOT

LOT/100 patient days

P valueLOT

DOT/LOT ratio

Sex

Male

4779

33.9

< 0.001

20.7

< 0.001

1.6

Female

4653

27.8

 

17.8

 

1.6

Age classes

0–11 months

1496

30.1

< 0.001

19.0

< 0.001

1.6

12–23 months

2063

40.3

 

24.8

 

1.6

2–4 years

1996

26.5

 

18.4

 

1.4

5–9 years

1282

33.5

 

18.5

 

1.8

 ≥ 10 years

2680

25.1

 

15.7

 

1.6

Ward

Medical

5362

29.7

< 0.001

18.6

< 0.001

1.6

Surgical

2450

20.6

 

13.4

 

1.5

Intensive Care

1736

47.2

 

28.5

 

1.7

Length of hospital stay (days)

≤ 7

4154

30.5

0.7

17.9

< 0.001

1.7

08–30

1816

31.3

 

22.0

 

1.4

> 30

3578

30.2

 

18.8

 

1.6

Comorbidities

Yes

4343

27.3

< 0.001

20.1

< 0.001

1.3

No

4884

33.6

 

17.7

 

1.9

Participating center

1

5799

34.6

< 0.001

21.3

< 0.001

1.6

2

1612

40.6

 

24.9

 

1.6

3

251

31.1

 

20.7

 

1.5

4

1886

9.3

 

7.1

 

1.3

Total

9548

30.5

 

19.1

 

1.6