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Table 4 Multiple drug resistant strains recovered from blood cultures of cancer patients

From: Bloodstream infections in patients with malignancies: implications for antibiotic treatment in a Ghanaian tertiary setting

Microorganism

Multiple drug resistant isolates (%)

Total

Period 1

Period 2

Number

CTX-R

CTX-S

p value

Number

CTX-R

CTX-S

p value

Gram negatives (n = 49)

a34/49 (69.3)

a15/25a (60.0)

9/15

6/15

0.273

a19/24a (79.2)

16/19

3/19

<0.001

 Enterobacteriaceae (n = 32)

28/32 (87.5)

12/16a (75.0)

7/12

5/12

0.414

16/16b (100.0)

13/16

3/16

<0.001

  Escherichia coli (n = 8)

8/8 (100)

5/5a (100)

3/5

2/5

0.527

3/3a (100)

1/3

2/3

0.414

  K. pneumoniae (n = 3)

3/3 (100)

0

0

0

3/3 (100)

3/3

0/3

0.014

  Citrobacter species (n = 12)

9/12 (75.0)

5/8a (62.5)

3/5

2/5

0.527

4/4a (100)

4/4

0/4

0.004

  Enterobacter species (n = 7)

7/7 (100)

1/1a (100)

1/1

0/1

5/6a (100)

5/6

0/6

<0.001

  Providencia species (n = 1)

0/1 (0.0)

0/1

0

0

0

0

0

  Salmonella typhimurium (n = 1)

1/1 (100)

1/1 (100)

0/1

1/1

0

0

0

 Acinetobacter species (n = 7)

6/7 (85.7)

3/3a (100)

2/3

1/3

0.414

3/4a (75)

3/4

0/4

0.028

 Pseudomonas aeruginosa (n = 10)

0/10 (0.0)

0/6a (0.0)

 

0/4a (0.0)

 

Gram positives (n = 40)

b6/40 (15.0)

b1/22a (4.5)

 

b5/18b

 

  Enterococcus species (n = 2)

1/2 (50.0)

1/1a (50.0)

 

0/1a (0.0)

 

  Staphylococcus aureus (n = 4)

1/4 (25.0)

0/3a (0.0)

 

1/1a (100)

 

  Staphylococcus epidermidis (n = 28)

2/28 (7.2)

0/16a (0.0)

 

2/12a (16.7)

 

  Streptococcus species (n = 6)

2/6 (33.3)

1/2a (50.0)

 

1/4a (25.0)

 

Total

39/89 (43.9)

16/47a (34.1)

   

23/42b (54.7)

   
  1. Numbers with differing superscripts within antimicrobial agent are significantly different at the p < 0.05
  2. CTX-R cefotaxime (30 μg) resistant, CTX-S cefotaxime susceptible, Period 1 first study period, Period 2 second study period