Table 4 Appropriateness of antibiotic prescriptions

Route of administration (%)

 Appropriate

374 (97.4)

182 (98.4)

556 (97.7)

 Inappropriate

10 (2.6)

3 (1.6)

13 (2.3)

Dose (%)

 Optimal

112 (29.2)

139 (75.1)

251 (44.1)

 Suboptimal: excessively high dose

32 (8.3)

2 (1.1)

34 (6.0)

 Inappropriate: excessively low dose

62 (16.1)

25 (13.5)

87 (15.3)

 N/A

178 (46.4)

19 (10.3)

197 (34.6)

Antibiotic choice (%)

 Antibiotics for the treatment of infectious diseases

  Optimal

146/370 (39.5)¹

82/155 (52.9)

228/525 (43.4)¹

  Suboptimal

60/370 (16.2)¹

16/155 (10.3)

76/525 (14.5)¹

  Inappropriate

129/370 (34.9)¹

44/155 (28.4)

173/525 (33.0)¹

  N/A

35/370 (9.5)¹

13/155 (8.4)

48/525 (9.1)¹

Antibiotics for the prophylaxis of surgical site infection

  Appropriate

1/3 (33.3)

17/30 (56.7)

18/33 (54.5)

  Inappropriate

2/3 (66.7)

13/30 (43.3)

15/33 (45.5)

Antibiotics for other or unknown reasons

  Appropriate

0

0

0

  Inappropriate

10/10 (100)

10/10 (100)

10/10 (100)

Appropriateness of antibiotic prescription, by each antibiotic (%)

  Optimal

49/384 (12.8)

76/185 (41.1)

125/569 (22.0)

  Suboptimal

29/384 (7.6)

12/185 (6.5)

41/569 (7.2)

  Inappropriate

109/384 (28.4)

65/185 (35.1)

174/569 (30.6)

  N/A

197/384 (51.3)

32/185 (17.3)

229/569 (40.2)

Appropriateness of antibiotic prescription, by each patient (%)

  Optimal

29/272 (10.7)

57/150 (38.0)

86/422 (20.4)

  Suboptimal: one or more antibiotics were suboptimal

26/272 (9.6)

9/150 (6.0)

35/422 (8.3)

  Suboptimal: unnecessary combination therapy

1/272 (0.4)

4/150 (2.7)

5/422 (1.2)

  Inappropriate

85/272 (31.3)

50/150 (33.3)

135/422 (32.0)

  N/A

131/272 (48.2)

30/150 (20.0)

161/422 (38.2)