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Table 2 Patient characteristics and patient outcome pre- and post-implementation of interventions, per intervention group and specialty

From: The effect of antibiotic stewardship interventions with stakeholder involvement in hospital settings: a multicentre, cluster randomized controlled intervention study

 

Pulmonary medicine Period

Infectious diseases Period

Gastroenterology Period

Audit with feedback Period

Academic detailing Period

Control (all three specialities) Period

Pre N = 427

n (%)

Post N = 162

n (%)

p-value

Pre N = 424

n (%)

Post N = 153

n (%)

p-value

Pre N = 78

n (%)

Post N = 39

n (%)

p-value

Pre N = 478

n (%)

Post N = 182

n (%)

p-value

Pre N = 451

n (%)

Post N = 172

n (%)

p-value

Pre N = 350

n (%)

Post N = 169

n (%)

p-value

Age (mean - years)

69.6

68.99

0.66

67.5

64.4

0.10

68.9

64.8

0.35

67.1

66.1

0.51

70.2

67.1

0.05

63.2

65.7

0.22

Sex

 Female

213 (49.9)

88 (54.3)

0.34

180 (42.5)

80 (52.3)

0.04

37 (47.4)

16 (41.0)

0.51

221 (46.2)

101 (55.5)

0.03

209 (46.3)

83 (48.3)

0.67

167 (47.7)

80 (47.3)

0.94

 Male

214 (50.1)

74 (45.7)

 

244 (57.5)

73 (47.7)

 

41 (52.6)

23 (59)

 

257 (53.8)

81 (44.5)

 

242 (53.7)

89 (51.7)

 

183 (52.3)

89 (52.7)

 

Admitted from hospital/nursing home

55 (12.9)

15 (9.3)

0.23

68 (16.0)

30 (19.7)

0.30

14 (18.0)

3 (7.7)

0.14

67 (14.0)

20 (11.0)

0.30

70 (15.5)

28 (16.4)

0.79

51 (14.6)

23 (13.6)

0.75

Indication for antibiotic treatment

 Pneumonia

136 (31.9)

63 (38.9)

0.20

115 (27.1)

45 (29.6)

0.06

11 (14.1)

3 (7.7)

0.16

162 (33.9)

67 (36.8)

0.01

100 (22.2)

44 (25.7)

0.15

65 (18.7)

23 (13.6)

0.31

 COPD exacerbation, infectious

183 (42.9)

63 (38.9)

 

59 (13.9)

7 (4.6)

 

1 (1.3)

2 (5.1)

 

132 (27.6)

34 (18.7)

 

111 (24.6)

38 (22.2)

 

25 (7.2)

15 (8.9)

 

 LRTI - Other

23 (5.4)

9 (5.6)

 

16 (3.7)

6 (3.95)

 

6 (7.7)

2 (5.1)

 

19 (4.0)

4 (2.2)

 

26 (5.8)

13 (7.6)

 

22 (6.3)

7 (4.1)

 

 Sepsis

40 (9.4)

17 (10.5)

 

61 (14.4)

24 (15.8)

 

16 (20.5)

5 (12.8)

 

57 (11.9)

26 (14.3)

 

60 (13.3)

20 (11.7)

 

73 (21.0)

50 (29.6)

 

 Skin and soft tissue

3 (0.7)

2 (1.2)

 

62 (14.6)

33 (21.7)

 

9 (11.5)

6 (15.4)

 

31 (6.5)

25 (13.7)

 

43 (9.5)

16 (9.4)

 

58 (16.7)

22 (13.0)

 

 Gastrointestinal tract

1 (0.2)

0 (0)

 

9 (2.12)

4 (2.6)

 

9 (11.5)

11 (28.2)

 

6 (1.3)

2 (1.1)

 

13 (2.8)

13 (7.6)

 

35 (10.1)

14 (8.3)

 

 Urinary tract

9 (2.1)

5 (3.1)

 

75 (17.7)

21 (13.8)

 

17 (21.8)

9 (23.1)

 

31 (6.5)

16 (8.8)

 

70 (15.5)

19 (11.1)

 

36 (10.3)

19 (11.2)

 

 Other

32 (7.5)

3 (1.9)

 

27 (6.4)

12 (7.9)

 

9 (11.5)

1 (2.6)

 

40 (8.4)

8 (4.4)

 

28 (6.2)

8 (4.7)

 

34 (9.8)

19 (11.2)

 

Antibiotic allergies

62 (14.5)

28 (17.3)

0.41

35 (8.3)

19 (12.4)

0.13

8 (10.3)

4 (10.3)

0.99

59 (12.3)

26 (14.3)

0.51

46 (10.2)

25 (14.5)

0.13

25 (7.2)

17 (10.1)

0.18

Patient outcomes ∆

 Length of stay (days)

7.2

6.9

0.40

6.5

6.5

0.99

7.0

6.1

0.30

7.2

6.5

0.04

6.5

6.8

0.41

7.5

6.8

0.11

 In-hospital mortality

30 (7.0)

7 (4.3)

0.23

12 (2.8)

4 (2.61)

0.89

3 (3.9)

2 (5.13)

0.76

28 (5.9)

9 (5.0)

0.65

17 (3.8)

4 (2.3)

0.37

13 (3.7)

3 (1.8)

0.23

 30-day mortality

53 (12.4)

11 (6.8)

0.05

30 (7.1)

8 (5.3)

0.44

3 (3.9)

4 (10.3)

0.17

50 (10.5)

12 (6.6)

0.13

36 (8.0)

11 (6.4)

0.51

24 (6.9)

6 (3.6)

0.13

 30-day readmission

117 (29.3)

38 (24.5)

0.26

78 (19.1)

18 (12.2)

0.06

16 (21.3)

6 (17.1)

0.61

111 (24.6)

36 (20.9)

0.33

100 (23.1)

26 (15.7)

0.04

58 (17.5)

30 (18.6)

0.75

  1. p-values are obtained by chi-square test (categorical variables) and t-test (continuous variables) per group
  2. ∆ Patient outcomes were also tested for interaction between intervention groups/specialty and period using linear and logistic regression. p-value interaction length of stay = 0.080. p-value interaction 30-day readmission = 0.105