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The Egyptian Journal of Bronchology

Table 2 Incidence of isolated microorganisms in different ICUs

From: Antibiograms of intensive care units at an Egyptian tertiary care hospital

Variables

Emergency ICU

SICU

MICU

Pulmonary ICU

CCU

NICU

PICU

Cardiothoracic ICU

Total

(n = 11,179)

(n = 9528)

(n = 20,261)

(n = 419)

(n = 599)

(n = 1582)

(n = 1545)

(n = 108)

(n = 45,221)

Microorganisms

         

  Gram-negative Number (%)

9254 (20.46%)

7952 (17.58%)

13506 (29.86%)

313 (0.69%)

264 (0.58%)

826 (1.83%)

1457 (3.22%)

80 (0.18%)

33,652 (74.41%)

    Acinetobacter baumanii

1947 (4.30%)

897 (1.98%)

1629 (3.6%)

12 (0.02%)

57 (0.12%)

13 (0.02%)

168 (0.37%)

0 (0%)

4723 (10.44%)

    Burkholderia cepacia

25 (0.05)

16 (0.03%)

113 (0.24%)

16 (0.03%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

170 (0.38%)

    Citrobacter freundii

15(0.03)

17 (0.03%)

16 (0.03%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

48 (0.11%)

    E. coli

2161 (4.77)

1293 (0.02%)

4441 (9.82%)

93 (0.2%)

58 (0.12%)

320 (0.7%)

346 (0.76%)

17 (0.03%)

8729 (19.3%)

    Enterobacter cloacae

161 (0.35%)

91 (0.2%)

110 (0.24%)

0 (0%)

0 (0%)

2 (0.004%)

0 (0%)

0 (0%)

364 (0.8%)

    Klebsiella pneumoniae

3756 (8.3%)

4071(9.0%)

5760 (12.73%)

160 (0.03)

149 (0.32%)

452 (0.99%)

742 (1.64%)

63 (0.13%)

15,153 (33.51%)a

    Morganella morganii

15 (0.03%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

15 (0.03%)

    Proteus mirabilis

269 (0.59%)

466 (1.03%)

269 (0.59%)

0(0%)

0 (0%)

16 (0.03%)

15 (0.03%)

0 (0%)

1035 (2.29%)

    Providencia stuartii

81 (0.17%)

16 (0.03%)

23 (0.05%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

120 (0.27%)

    P. aeruginosa

793 (1.75%)

1085 (2.39%)

1115 (2.46%)

32 (0.07%)

0 (0%)

8 (0.01)

170 (0.37%)

0 (0%)

3203 (7.08%)

    Serratia marcescens

31(0.06%)

0 (0%)

30 (0.06%)

0 (0%)

0 (0%)

15 (0.02%)

16 (0.03%)

0 (0%)

92 (0.2%)

  Gram-positive Number (%)

1912 (4.22%)

1574 (3.48%)

6729 (14.88%)

106 (0.23%)

335 (0.74%)b

756 (1.67%)

88 (0.19%)

28 (0.06%)

11,528 (25.49%)

    Enterococci

144 (0.31%)

91 (0.2%)

651 (1.43%)

26 (0.05%)

26 (0.05%)

13 (0.02%)

13 (0.02%)

12 (0.02%)

976 (2.16%)

    Staph. aureus

589 (1.3%)

287 (0.63%)

1170 (2.58%)

16 (0.03%)

47 (0.1%)

80 (0.17%)

30 (0.06%)

0 (0%)

2219 (4.91%)

    Staph. hominis

382 (0.84%)

339 (0.75%)

1860 (4.11%)

16 (0.03%)

139 (0.3%)

295 (0.65%)

16 (0.03%)

0 (0%)

3047 (6.73%)

    Other staph.

773 (1.7%)

848 (1.87%)

3039 (6.72%)

48 (0.1%)

123 (0.27%)

361 (0.79%)

29 (0.06%)

16 (0.03%)

5237 (11.58%)

    Streptococci

24 (0.05)

9 (0.01%)

9 (0.01%)

0 (0%)

0 (0%)

7 (0.01%)

0 (0%)

0 (0%)

49 (0.11%)

  Yeasts Number (%)

13 (0.11%)

2 (0.004%)

26 (0.12%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

41 (0.09%)

    Candida albicans

6 (0.01%)

2 (0.004%)

11 (0.02%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

19 (0.04%)

    Candida tropicalis

7 (0.01%)

0 (0%)

15 (0.03%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

0 (0%)

22 (0.05%)

  1. ICU intensive care unit, SICU surgical intensive care unit, MICU medical intensive care unit, CCU coronary care unit, NICU neonatal intensive care unit, PICU pediatric intensive care unit, E. coli Escherichia coli, P. aeruginosa Pseudomonas aeruginosa, Staph. aureus Staphylococcus aureus, Staph. hominis Staphylococcus hominis
  2. n total number of clinical isolates in each ICU
  3. Data were expressed as number and percentage. Percentages are out of total isolates.
  4. Data from isolate totals < 30 may be statistically unreliable.
  5. aKlebsiella pneumoniae was the most frequently identified Gram-negative microorganism.
  6. bGram-positive cocci was more common in CCU versus Gram-negative organisms
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