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Table 3 Rectal carriage of (non-intrinsic) antibiotic resistant microorganisms

From: Prevention of severe infectious complications after colorectal surgery using oral non-absorbable antimicrobial prophylaxis: results of a multicenter randomized placebo-controlled clinical trial

 

Patients, n/N (%)

 

OAP

Placebo

P value

Baseline

 Number of valid rectal cultures

35/39 (89.7)

31/39 (79.5)

 

Rectal carriage of HRE

 ESBL-E

2/35 (5.7)

1/31 (3.2)

1.000

 Carbapenem-resistant Gram-negative bacteria

1/35 (2.9)

2/31 (6.5)

0.597

 Carbapenemase-gene present

1/35 (2.9)

2/31 (6.5)

0.597

 Tobramycin-resistant Gram-negative bacteria

12/35 (34.3)

14/31 (45.2)

0.452

 Acquired aminoglycoside resistance gene present

1/35 (2.8)

5/31 (16.1)

0.088

 Colistin-resistant Gram-negative bacteria

7/35 (20.0)

6/31 (19.4)

1.000

 Acquired colistin resistance gene present

0/35 (0.0)

0/31 (0/0)

0

30 days after surgery

 Number of valid rectal cultures

34/36 (94.4)

28/35 (80.0)

 

Rectal carriage of HRE

 ESBL-E

1/34 (2.9)

1/28 (3.6)

1.000

 Carbapenem-resistant Gram-negative bacteria

0/34 (0.0)

1/28 (3.6)

0.452

 Carbapenemase gene present

0/34 (0.0)

1/28 (3.6)

0.452

 Tobramycin-resistant Gram-negative bacteria

15/34 (44.1)

10/28 (35.7)

0.606

 Acquired aminoglycoside resistance gene present

7/34 (2.1)

5/28 (17.9)

0.318

 Colistin-resistant Gram-negative bacteria

4/34 (11.9)

4/28 (14.3)

0.320

 Acquired colistin resistance gene present

0/34 (0.0)

0/28 (0.0)

1.000

  1. Data are presented as n/N (%). P values are estimated using Fisher’s exact test. ESBL-E, Extended-Spectrum Beta Lactamase-producing Enterobacteriaceae; OAP, oral antibiotic prophylaxis