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Table 1 Reported methodological quality of animal research published in three critical care journals in 2012: Methods section

From: The methodological quality of animal research in critical care: the public face of science

Criterion

Number of 77 publications meeting criterion,n(%) [95% confidence interval]

Randomization reported

47 (61%) [50%, 71%]

 Allocation concealment mentioned

3 (6% of 47) [2%, 18%]

 Randomization procedure described

1 (2% of 47) [<1%, 12%]

Reported blinding of any type mentioned below

31 (40%) [30%, 51%]

 Disease induction

14 (45% of 31) [29%, 62%]

 Intervention

7 (23% of 31) [11%, 40%]

 Subjective outcomes

17 (55% of 31) [38%, 71%]

Primary outcome specified

5 (7%) [2%, 15%]

Sample size calculation reported

4 (5%) [2%, 13%]

More than 10 secondary outcomes specified

74 (96%) [89%, 99%]

Eligibility criteria for animals stated

4 (5%) [2%, 13%]

Acclimation/habituation prior to experiments stated

6 (8%) [3%, 16%]

Staff (number or training) performing experiment described

1 (1%) [<1%, 8%]

Animal numbers stated in methods section

61 (79%) [69%, 87%]

 Animal numbers (when stated)

Median 32 (range 6 to 320; IQR 21 to 70)

Sepsis model: with any supportive therapy mentioneda

12 (44% of 27) [28%, 63%]

  1. aSepsis supportive therapies were fluids, 11 (41% of 27) and antibiotics, 4 (15% of 27). Another 1 (4% of 27) had animals with the co-morbid illness of trauma. The intervention was given only pre-sepsis induction in 7 (26% of 27). IQR, interquartile range.