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Table 3 Clinical and demographic characteristics of patients with and without clinical cure

From: Impact of colistin plasma levels on the clinical outcome of patients with infections caused by extremely drug-resistant Pseudomonas aeruginosa

 

Clinical cure

Clinical failure

P-value

(n = 72)

(n = 19)

Male sex

49 (68)

17 (89.5)

0.06

Age, years*

66.5 (24–88)

67 (41–84)

0.59

APACHE II*

11 (2–28)

13.5 (6–24)

0.05

Co-morbidities, n (%):

 Malignancy

11 (15.3)

3 (15.8)

1

 Cardiovascular

21 (29.2)

5 (26.3)

1

 Pulmonary

24 (33.3)

9 (47,4)

0,26

 Diabetes Mellitus

20 (27.8)

1 (5.3)

0.06

 Urogenitala

11 (15.3)

3 (15.8)

1

 Hepatic

8 (11.1)

8 (0)

0.2

 Haematologicalb

9 (12.5)

3 (15.8)

0.7

 Neurologicalc

16 (22.2)

2 (10.5)

0.34

Charlson*

4.5 (0–10)

4 (1–9)

0.73

McCabe**

1.4 ± 0.6

1.7 ± 0.7

0.11

Severe sepsis, n (%)

49 (68.1)

9 (47.4)

0.095

Shock

6 (8.3)

1 (5.3)

0.65

Patients with CKD at baseline

16 (22.2)

3 (15.8)

0.53

Department of hospitalization:

 Medical

38 (52.8)

6 (31.6)

0.16

 Surgical

23 (32)

9 (47.4)

 

 ICU2

11 (15.3)

4 (21.1)

 

Admission diagnosis category:

 Infection

19 (26.4)

7 (36.8)

 

 Other-medical

30 (41.7)

5 (26.3)

 

 Other-surgical

23 (3.9)

7 (36.8)

0.45

CMS daily dose (millions IU)**

5.3 ± 2.3

6.2 ± 2.1

0.094

CMS total dose (millions IU)**

105.91 ± 88.9

141.2 ± 129.5

0.45

CMS duration of treatment, days**

20.66 ± 16.1

22.6 ± 18.5

0.81

Combined treatment, n (%)

35 (48.6)

11 (57.9)

0.47

Css (mg/mL)**

1.49 ± 1.4

2.42 ± 1.49

0.01

Css > 1.25 (mg/mL), n (%)

32 (45.1)

14 (73.7)

0.027

Css/MIC**

3.13 ± 2.9

4.61 ± 2.86

0.03

AKI at day 7, n (%)

18 (25)

12 (63.2)

0.002

AKI at the EOT, n (%)

33 (45.8)

16 (84.2)

0.003

Length of stay, days**

69.16 ± 59.5

70.8 ± 39.1

0.19

  1. 1 CKD chronic kidney disease, 2 ICU intensive cure unit, 3 CMS colistin methanesulphonate, 4 IU international units, 5 C ss colistin plasma concentration at steady-state, 6 MIC minimal inhibitory concentration, 7 AKI acute kidney injury, 8 EOT end of treatment
  2. *median (range)
  3. **mean ± SD
  4. aAmong urogenital co-morbidities were, renal disease, kidney stones and obstructive uropathy
  5. bAmong haematological co-morbidities were haemopoietic and lymphoreticular malignances
  6. cAmong neurological co-morbidities were Alzheimer’s disease, stroke, miastenia gravis, sclerosis and any kind of dementia