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Table 2 Characteristics of previously published studies for CI vs. IB of beta-lactam antibiotics

From: Continuous beta-lactam infusion in critically ill patients: the clinical evidence

Study

Setting (country)

Test antibiotic

Critically ill?

Patient population

Sample size

Age (yr) a

Allocation sequence generator

Allocation concealment

Masking

Concomitant antibiotics

CI

IT

Angus et al. [87]

Not specified (Thailand)

Ceftazidime

Yes

Septicemic melioidosis

21

48 (29–58)

43 (27–73)

Not specified

Not specified

Not specified

Amx/clv or doxy, tmp/smx and chlora

Bodey et al. [89]

Non-ICU (USA)

Cefamandole

No

Malignant diseases with neutropenia

204

Not specified

Adequate

Adequate

Not specified

Carbenicillin

Buck et al. [81]

Non-ICU (Germany)

Pip/tazo

No

Hospitalized infections

24

60-88b

32-76b

Not specified

Adequate

No

Nil stated

Buijk et al. [52]

ICU (Netherlands)

Ceftazidime

Yes

Intra-abdominal infections

18

12 (46–76)

6 (42–87)

Not specified

Not specified

No

Various

Georges et al. [80]

ICU (France)

Cefepime

Yes

Critically ill with gram-negative infections

50

50 ± 17

46 ± 24

Not specified

Not specified

No

Amikacin

Hanes et al. [86]

ICU (USA)

Ceftazidime

Yes

Critically ill trauma

32

33.5 ± 12.5

36.1 ± 12.8

Not specified

Not specified

No

Nil stated

Kojika et al. [82]

Not specified (Japan)

Meropenem

No

Intra-abdominal infections

10

67.4 ± 14.6

60 ± 12.8

Not specified

Not specified

No

Nil stated

Lagast et al. [88]

Not specified (Belgium)

Cefoperazone

No

Gram-negative septicaemia

45

37-77b

Not specified

Not specified

No

Nil stated

Lau et al. [79]

ICU (USA)

Pip/tazo

No

Complicated intra-abdominal infections

262

50.4 ± 16.6

49.3 ± 17.8

Not specified

Not specified

No

Nil stated

Lubasch et al. [83]

Not specified (Germany)

Ceftazidime

No

Hospitalized patients with COPD exacerbation

81

65.3 ± 10.1

Not specified

Not specified

No

Nil stated

Nicolau et al. [84]

ICU (USA)

Ceftazidime

Yes

Critically ill patients with sepsis

41

46 ± 16

56 ± 20

Adequate

Not specified

No

Tobramycin

Pedeboscq et al. [85]

ICU (France)

Pip/tazo

Yes

Severe sepsis

7

58 ± 12

Not specified

Not specified

No

Ofloxacin

Rafati et al. [78]

ICU (Iran)

Piperacillin

Yes

Critically ill patients with sepsis

40

50.1 ± 22.2

48.0 ± 20.7

Not specified

Not specified

No

Amikacin

Roberts et al. [75]

ICU (Australia)

Ceftriaxone

Yes

Critically ill patients with sepsis

57

43 ± 19

52 ± 16

Adequate

Adequate

Adequatec

Multiple depending on indication

Sakka et al. [77]

ICU (Germany)

Imi/cila

Yes

Critically ill patients with sepsis

20

62 ± 16

59 ± 16

Not specified

Adequate

No

Nil stated

Van Zanten et al. [76]

Not specified (Netherlands)

Cefotaxime

No

Hospitalized patients with COPD exacerbation

93

65.3 ± 8.4

68.6 ± 5.3

Not specified

Not specified

No

Nil stated

  1. CI, continuous infusion; IB, intermittent bolus; Amx/clv, amoxicillin/clavulanic acid; doxy, doxycycline; tmp/smx, trimethoprim/sulphamethoxazole; chlora, chloramphenicol; pip/tazo, piperacillin/tazobactam; Imi/cila, imipenem/cilastatin; COPD, chronic obstructive pulmonary disease.
  2. aValues are described as published results as mean (±SD) or median (range).
  3. bValues are reported as range.
  4. cOnly outcome assessment.