Table 1

Frequency of Mycoplasmataceae detection in patients with and without VAP confirmed by conventional microbiological culture

 Non-VAP subdivision
CohortVAP (>104 CFU/mL)Non-VAP (<104 CFU/mL or sterile)Sub-104 CFU/mL
growth
Sterile
17/13
54% (25–81%)
10/54
19% (9–31%)
(p=0.014)
6/23
26% (10–48%)
4/31
13% (4–31%)
(p=0.29)
214/30
47% (28–66%)
6/62
10% (4–20%)
(p=0.0001)
3/26
12% (2–30%)
3/36
8% (2–22%)
(p=0.69)
Combined cohorts21/43
49% (33–65%)
16/116
14% (9–25%)
(p<0.0001)
9/49
18% (9–32%)
7/67
10% (4–20%)
(p=0.28)
  • The non-VAP subdivision is of patients with growth below the 104 CFU/mL cut-off and those with no detectable growth. Data are shown as raw values, percentage (95% CI by Clopper–Pearson method), p values by Fisher's exact test for comparison between VAP and non-VAP groups (column 3) and for comparison between sub-104 CFU/mL growth and sterile (column 5).

  • CFU, colony forming unit; VAP, ventilator-acquired pneumonia.